You searched for subject:(Ground deformation).
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Cornell University
1.
Bouziou, Dimitra.
Earthquake-Induced Ground Deformation Effects On Buried Pipelines.
Degree: PhD, Civil and Environmental Engineering, 2015, Cornell University
URL: http://hdl.handle.net/1813/39318 
► The primary subject of this thesis is the evaluation of pipeline performance during earthquakes through analytical and experimental studies, spatial analysis, and probabilistic methodologies. Permanent…
(more)
▼ The primary
subject of this thesis is the evaluation of pipeline performance during earthquakes through analytical and experimental studies, spatial analysis, and probabilistic methodologies. Permanent
ground deformations caused by liquefaction are also addressed through spatial and statistical analysis, and are compared to foundation deformations caused by liquefaction effects estimated through building damage surveys. This thesis starts with a comprehensive analytical and experimental assessment of segmented pipeline response to transient
ground deformation before and after rehabilitation with in situ lining technologies. The different modes of segmented pipeline
deformation caused by seismic wave propagation are investigated through finite element analyses to show that the most prominent form of
deformation at weak pipeline joints and circumferential pipe cracks are in the axial direction. They exceed the levels of all other forms of pipeline
deformation by several orders of magnitude. Nonaxial deformations have negligible effects on pipeline performance under seismic body wave propagation. Pipeline performance after rehabilitation with in situ linings is studied through large-scale testing and the effectiveness of in situ lining technology for seismic retrofit of critical lifelines is evaluated. Pipeline performance during earthquakes is also investigated through spatial analysis of the Christchurch water distribution system response to transient and permanent
ground deformations during the 22 February 2011 Christchurch earthquake, New Zealand (NZ). Repair regressions for different pipe types are developed using spatial data sets that are unique in size and complexity, including dense array
ground motion records, detailed mapping of areas affected by soil liquefaction, as well as spatial data sets for the water distribution system, geocoded repair records, and high resolution Light Detection and Ranging (LiDAR) measurements of vertical and horizontal movements. This study expands on previous work in several important ways, and provides a detailed framework of the analytical processes for repair regressions that assists in future investigations with data of similar size and complexity. A probabilistic model is presented in which the expected value of the
ground strain in the axial pipeline direction within a strain field is calculated by assuming that pipeline orientation with respect to the strain field is uniformly distributed and by accounting for possible differences in tensile and compressive strains with a weighting factor. The proposed methodology is applied in regression analysis of pipeline damage caused by lateral
ground strains during the 22 February 2011 Christchurch earthquake, NZ, and can be used for future investigations to improve the assessment of
ground strains affecting segmented pipelines. Permanent
ground deformation during the 2010-2011 Canterbury Earthquake Sequence, NZ, is evaluated through statistical analysis of vertical and lateral
ground displacements, as well as differential vertical…
Advisors/Committee Members: O'Rourke, Thomas Denis (chair), Grigoriu, Mircea Dan (committee member), Phoenix, Stuart Leigh (committee member), Aref, Amjad J (committee member).
Subjects/Keywords: earthquakes; pipelines; ground deformation
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APA (6th Edition):
Bouziou, D. (2015). Earthquake-Induced Ground Deformation Effects On Buried Pipelines. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/39318
Chicago Manual of Style (16th Edition):
Bouziou, Dimitra. “Earthquake-Induced Ground Deformation Effects On Buried Pipelines.” 2015. Doctoral Dissertation, Cornell University. Accessed January 24, 2021.
http://hdl.handle.net/1813/39318.
MLA Handbook (7th Edition):
Bouziou, Dimitra. “Earthquake-Induced Ground Deformation Effects On Buried Pipelines.” 2015. Web. 24 Jan 2021.
Vancouver:
Bouziou D. Earthquake-Induced Ground Deformation Effects On Buried Pipelines. [Internet] [Doctoral dissertation]. Cornell University; 2015. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/1813/39318.
Council of Science Editors:
Bouziou D. Earthquake-Induced Ground Deformation Effects On Buried Pipelines. [Doctoral Dissertation]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/39318
2.
Spata, Alessandro.
SISTEM: a new method to integrate geodetic and satellite data to estimate 3D ground deformation maps.
Degree: 2011, Università degli Studi di Catania
URL: http://hdl.handle.net/10761/376
► We propose a new technique, based on the elastic theory, to efficiently produce an estimate of three-dimensional surface displacement maps by integrating sparse Global Positioning…
(more)
▼ We propose a new technique, based on the elastic theory, to efficiently produce an estimate of three-dimensional surface displacement maps by integrating sparse Global Positioning System (GPS) measurements of deformations and Differential Interferometric Synthetic Aperture Radar (DInSAR) maps of movements of the Earthà à à à à ¢ s surface.
Previous approaches known in literature to combine GPS and DInSAR data require two steps: a first step in which sparse GPS measurements are interpolated in order to fill in GPS displacements in the DInSAR grid, and a second step to estimate the three-dimensional surface displacement maps by using a suitable optimization technique.
One of the advantages of the proposed approach, with respect to the previous ones, is that it does not require preliminary interpolation of the observed deformation pattern. Indeed, we propose a linear matrix equation which accounts for both GPS and DInSAR data whose solution provides simultaneously the strain tensor, the displacement field and the rigid body rotation tensor. The mentioned linear matrix equation is solved by using the Weighted Least Square (WLS), thus assuring both numerical robustness and high computation efficiency.
The proposed methodology was tested on both synthetic and experimental data, these last from GPS and DInSAR measurements carried out on Mt. Etna during the 2003-2004 time interval. In order to appreciate the results accuracy standard estimated errors are provided. These tests also allow optimising the choice of specific parameters of this algorithm.
This method can be further exploited to account for other available data sets, such as additional interferograms, or other geodetic data (e.g. levelling, tilt, etc.), in order to achieve higher accuracy.
Subjects/Keywords: GPS; DInSAR; integration; ground deformation
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APA (6th Edition):
Spata, A. (2011). SISTEM: a new method to integrate geodetic and satellite data to estimate 3D ground deformation maps. (Thesis). Università degli Studi di Catania. Retrieved from http://hdl.handle.net/10761/376
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Spata, Alessandro. “SISTEM: a new method to integrate geodetic and satellite data to estimate 3D ground deformation maps.” 2011. Thesis, Università degli Studi di Catania. Accessed January 24, 2021.
http://hdl.handle.net/10761/376.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Spata, Alessandro. “SISTEM: a new method to integrate geodetic and satellite data to estimate 3D ground deformation maps.” 2011. Web. 24 Jan 2021.
Vancouver:
Spata A. SISTEM: a new method to integrate geodetic and satellite data to estimate 3D ground deformation maps. [Internet] [Thesis]. Università degli Studi di Catania; 2011. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10761/376.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Spata A. SISTEM: a new method to integrate geodetic and satellite data to estimate 3D ground deformation maps. [Thesis]. Università degli Studi di Catania; 2011. Available from: http://hdl.handle.net/10761/376
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Mississippi State University
3.
Gyawali, Abhinaya.
Hyperheavy nuclei in axial relativistic Hartree-Bogoliubov calculations.
Degree: MS, Physics and Astronomy, 2018, Mississippi State University
URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03212018-122809/
;
► The existence of highest proton numbers at which the nuclear landscape cease to ex- ist, the end of the periodic table of elements and…
(more)
▼ The existence of highest proton numbers at which the nuclear landscape cease to ex-
ist, the end of the periodic table of elements and the limits of the existence of the nu-
clei are some of the difficult questions to answer. To explore those questions, we in-
vestigated hyperheavy nuclei (<i>Z</i> ≥ 126) using covariant density functional theory. We
demonstrate the existence of three regions of spherical hyperheavy nuclei centered around
(<i>Z</i> ∼ 138, <i>N</i> ∼ 230), (<i>Z</i> ∼ 156, <i>N</i> ∼ 310) and (<i>Z</i> ∼ 174, <i>N</i> ∼ 410). Also, we explored
other properties of hyperheavy nuclei such as octupole
deformation, alpha decay half lives,
chemical potential, etc.
Advisors/Committee Members: Dipangkar Dutta (committee member), Anatoli Afanasjev (chair), Jeffry A. Winger (committee member).
Subjects/Keywords: potential energy surface; oblate deformation; octupole deformation; fission barriers; chemical potential; hexadecapole deformation; alpha- decay half-lives; ground state deformation
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APA (6th Edition):
Gyawali, A. (2018). Hyperheavy nuclei in axial relativistic Hartree-Bogoliubov calculations. (Masters Thesis). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-03212018-122809/ ;
Chicago Manual of Style (16th Edition):
Gyawali, Abhinaya. “Hyperheavy nuclei in axial relativistic Hartree-Bogoliubov calculations.” 2018. Masters Thesis, Mississippi State University. Accessed January 24, 2021.
http://sun.library.msstate.edu/ETD-db/theses/available/etd-03212018-122809/ ;.
MLA Handbook (7th Edition):
Gyawali, Abhinaya. “Hyperheavy nuclei in axial relativistic Hartree-Bogoliubov calculations.” 2018. Web. 24 Jan 2021.
Vancouver:
Gyawali A. Hyperheavy nuclei in axial relativistic Hartree-Bogoliubov calculations. [Internet] [Masters thesis]. Mississippi State University; 2018. [cited 2021 Jan 24].
Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03212018-122809/ ;.
Council of Science Editors:
Gyawali A. Hyperheavy nuclei in axial relativistic Hartree-Bogoliubov calculations. [Masters Thesis]. Mississippi State University; 2018. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-03212018-122809/ ;
University of Alberta
4.
Wang,Yazhao.
Design, Deployment, Performance and Baseline Data Assessment
of Surface Tiltmeter Array Technology in Aquistore Geologic CO2
Storage Project.
Degree: MS, Department of Civil and Environmental
Engineering, 2015, University of Alberta
URL: https://era.library.ualberta.ca/files/cs4655g62r
► Tiltmeters have been widely applied in the engineering field for precise angle measurement. The recent adoption of surface tiltmeter array in monitoring geologic CO2 storage…
(more)
▼ Tiltmeters have been widely applied in the engineering
field for precise angle measurement. The recent adoption of surface
tiltmeter array in monitoring geologic CO2 storage has further
expanded the reach of this technology. During reservoir
surveillance, tiltmeter array detects sub-millimeter level surface
movement, delivers valuable input for reservoir management, and
provides safety assurance to the general public. While achieving
the high sensitivity, tiltmeter array also bears negative effect
from the amplified environmental and cultural noise. The control
and quantification of noise signals become more important in
reservoir surveillance as noise signals approach injection signals
in both temporal scale and amplitude. A surface array consisting of
15 tiltmeters is deployed in the Aquistore geologic CO2 storage
site southwest of Estevan, Saskatchewan, Canada. The design and
deployment of tiltmeter array successfully delivers satisfactory
reservoir coverage and sustains an insulated operational
environment. In the baseline phase two years of tilt data are
collected and analyzed for the composition of noise signals. Earth
tides, surface meteorological conditions and seismic activities all
contribute to the observed baseline tilt pattern. In order to
remove the impact of noise signals, three general methods are
proposed based on the revealed signal characteristics. A
statistical regression method is used to quantify linearly-provoked
tilt signal such as that from solid earth tide. For complex
processes such as the impact of surface precipitation, a numerical
modelling approach is adopted to estimate the scale of induced tilt
signal. As tiltmeter sensors exhibit temperature dependent
behavior, a calibration method is proposed. With the removal of
noise signals from tilt measurement, the tiltmeter array technology
is improved with more accurate and unbiased surveillance output
monitoring CO2 injection and storage.
Subjects/Keywords: Baseline Ground Deformation; Carbon Capture and Storage; Tiltmeter Array
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APA (6th Edition):
Wang,Yazhao. (2015). Design, Deployment, Performance and Baseline Data Assessment
of Surface Tiltmeter Array Technology in Aquistore Geologic CO2
Storage Project. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/cs4655g62r
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Chicago Manual of Style (16th Edition):
Wang,Yazhao. “Design, Deployment, Performance and Baseline Data Assessment
of Surface Tiltmeter Array Technology in Aquistore Geologic CO2
Storage Project.” 2015. Masters Thesis, University of Alberta. Accessed January 24, 2021.
https://era.library.ualberta.ca/files/cs4655g62r.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
MLA Handbook (7th Edition):
Wang,Yazhao. “Design, Deployment, Performance and Baseline Data Assessment
of Surface Tiltmeter Array Technology in Aquistore Geologic CO2
Storage Project.” 2015. Web. 24 Jan 2021.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
Wang,Yazhao. Design, Deployment, Performance and Baseline Data Assessment
of Surface Tiltmeter Array Technology in Aquistore Geologic CO2
Storage Project. [Internet] [Masters thesis]. University of Alberta; 2015. [cited 2021 Jan 24].
Available from: https://era.library.ualberta.ca/files/cs4655g62r.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Council of Science Editors:
Wang,Yazhao. Design, Deployment, Performance and Baseline Data Assessment
of Surface Tiltmeter Array Technology in Aquistore Geologic CO2
Storage Project. [Masters Thesis]. University of Alberta; 2015. Available from: https://era.library.ualberta.ca/files/cs4655g62r
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Cornell University
5.
Wham, Brad.
Jointed Pipeline Response To Large Ground Movements.
Degree: PhD, Civil and Environmental Engineering, 2016, Cornell University
URL: http://hdl.handle.net/1813/43567
► This thesis addresses the performance of jointed pipelines subject to ground deformations triggered at a large scale by earthquakes and a construction-related scale by tunneling.…
(more)
▼ This thesis addresses the performance of jointed pipelines
subject to
ground deformations triggered at a large scale by earthquakes and a construction-related scale by tunneling. Understanding and quantifying jointed pipeline response at these scales allows for better design, operational management, and risk assessment of underground infrastructure, where cast iron (CI) and ductile iron (DI) pipelines in the U.S. account for approximately 75% of water distribution systems. The thesis covers the response of DI and molecularly oriented polyvinyl chloride (PVCO) pipelines to earthquaketriggered soil movement as well as CI and DI pipeline response to tunneling. A series of specially designed four-point bending experiments and 3D finite-element (FE) simulations were performed to characterize DI push-on joints commonly used in water distribution systems to develop a relationship between the rotation and axial pullout at both metal binding and first leakage. The results of uniaxial tension and onedimensional compression tests on the elastomeric gaskets in DI push-on joints were implemented in numerical models that show joint leakage to be independent of load path, with a unique pressure boundary that predicts leakage for many combinations of axial pullout and rotation. The increased circumferential strength, reduced pipe wall thickness, and enhanced cross-sectional flexibility of PVCO pipelines was evaluated through the characterization of PVCO material properties, axial joint tension and compression tests, four-point bending tests, and a full-scale fault rupture experiment. A nominal 150-mm (6-in.)diameter PVCO pipeline is able to accommodate significant fault movement through axial tensile and bending strains in the pipe in combination with modest levels of axial slip at the restrained joints. Relatively large levels of axial strain in the low modulus PVCO material, which varies between 1% and 2% at pipeline failure, are able to sustain substantial extension and compression from
ground movements. Soil/pipeline interaction modeling was performed for vertical and horizontal
ground movements caused by tunneling in jointed CI and DI pipelines perpendicular to the tunnel centerline that (1) extend beyond the width of the settlement profile and (2) connect through 90° tees with a pipeline parallel to the tunnel. The modeling incorporates the results of large-scale laboratory tests. Guidance is provided for design and the identification before tunneling of potential difficulties. In particular, CI tees are at high risk when
subject to tunneling induced soil movement, whereas DI pipelines and tees have sufficient capacity to accommodate high levels of tunneling related
ground deformation. iv
Advisors/Committee Members: O'Rourke,Thomas Denis (chair), Stewart,Harry Eaton (committee member), Ingraffea,Anthony R (committee member).
Subjects/Keywords: pipelines, pipe joints; ductile iron pipe, PVCO pipe; tunneling ground deformation
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APA (6th Edition):
Wham, B. (2016). Jointed Pipeline Response To Large Ground Movements. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/43567
Chicago Manual of Style (16th Edition):
Wham, Brad. “Jointed Pipeline Response To Large Ground Movements.” 2016. Doctoral Dissertation, Cornell University. Accessed January 24, 2021.
http://hdl.handle.net/1813/43567.
MLA Handbook (7th Edition):
Wham, Brad. “Jointed Pipeline Response To Large Ground Movements.” 2016. Web. 24 Jan 2021.
Vancouver:
Wham B. Jointed Pipeline Response To Large Ground Movements. [Internet] [Doctoral dissertation]. Cornell University; 2016. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/1813/43567.
Council of Science Editors:
Wham B. Jointed Pipeline Response To Large Ground Movements. [Doctoral Dissertation]. Cornell University; 2016. Available from: http://hdl.handle.net/1813/43567
University of Otago
6.
Armstrong, Martina Hellen.
Glaciotectonic Deformation of the Hawea Moraine
.
Degree: 2011, University of Otago
URL: http://hdl.handle.net/10523/1650
► Environmental reconstruction of ancient glacial environments encompasses a variety of evidence sources that include morphology, sedimentology and structures within sedimentary deposits. The analysis of glaciotectonic…
(more)
▼ Environmental reconstruction of ancient glacial environments encompasses a variety of evidence sources that include morphology, sedimentology and structures within sedimentary deposits. The analysis of glaciotectonic
deformation structures is one source of evidence that can be utilised, in tandem with other sources, in determining the glaciological scenario and foreland/bed characteristics present either at the time of deposition or during subsequent reworking. Interpreting evidence of glaciotectonic
deformation requires guidance from modern analogues, where the majority of the literature is largely restricted to the Northern Hemisphere. Research on glaciotectonism has not been carried out on modern glacier margins in the South Island, and the range of investigations on Late Pleistocene deposits is very limited. This study focuses on the Hawea moraine and, based on a combination of geomorphological, sedimentological and geophysical techniques, evidence of glaciotectonic
deformation in both the extensive glaciolacustrine sediments and glaciofluvial gravels was found.
Deformation observed included normal faults and folds resulting from melt out and the removal of supporting ice following retreat, and thrusts, folds, and normal and reverse faults as products of ice advance into the deposit. Variation in the type and extent of
deformation throughout the deposit was attributed to localised differences in the glacial stress field and sediment type and its associated properties, which influence its yield strength such as grain size distribution, pore-water content and structure. Based on the findings in the Hawea moraine and limited literature on glaciotectonic
deformation in the eastern valleys of the Southern Alps, it is clear that, at this stage, one regional model of ice marginal
deformation cannot be applied to Late Pleistocene deposits in the South Island. It was shown that modern analogues drawn from the Northern Hemisphere do not adequately account for the thermal controls on glaciotectonic processes in the South Island, and the relative importance of glaciodynamics and the paleoenvironment of the glacial foreland remains unclear.
Advisors/Committee Members: Fitzsimons, Sean (advisor).
Subjects/Keywords: Glaciotectonic deformation;
Late Pleistocene;
Lake Hawea;
Facies analysis;
Ground-penetrating radar
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Manager
APA (6th Edition):
Armstrong, M. H. (2011). Glaciotectonic Deformation of the Hawea Moraine
. (Masters Thesis). University of Otago. Retrieved from http://hdl.handle.net/10523/1650
Chicago Manual of Style (16th Edition):
Armstrong, Martina Hellen. “Glaciotectonic Deformation of the Hawea Moraine
.” 2011. Masters Thesis, University of Otago. Accessed January 24, 2021.
http://hdl.handle.net/10523/1650.
MLA Handbook (7th Edition):
Armstrong, Martina Hellen. “Glaciotectonic Deformation of the Hawea Moraine
.” 2011. Web. 24 Jan 2021.
Vancouver:
Armstrong MH. Glaciotectonic Deformation of the Hawea Moraine
. [Internet] [Masters thesis]. University of Otago; 2011. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10523/1650.
Council of Science Editors:
Armstrong MH. Glaciotectonic Deformation of the Hawea Moraine
. [Masters Thesis]. University of Otago; 2011. Available from: http://hdl.handle.net/10523/1650
York University
7.
Coulombe, Derek Victor.
Landscapes of the Hinged Trunk: With Seams of Glass and Bone.
Degree: MFA - Master of Fine Arts, Visual Arts, 2016, York University
URL: http://hdl.handle.net/10315/32296
► This thesis engages the construction of a particular kind of artwork, namely an artwork that functions as an occult device, capable of affecting the physical…
(more)
▼ This thesis engages the construction of a particular kind of artwork, namely an artwork that functions as an occult device, capable of affecting the physical body of the viewer as well as the space the artwork occupies. The procedure described is a process of searching out and defining the formal, aesthetic, affective, and theoretical parameters inherent to the production of such a picture. The methods outlined reflect these defined elements, speaking to issues of materiality as they relate to the eventual dispatch of esoteric affects. The results described here and referred to in the text are a series of artworks that embody the tenets of the research carried out. These works are material, phenomenologically perceptible objects that elicit affect from physical bodies. The conclusion of these results is the definition of a model; it is the construction of a pictorial device capable of projecting immaterial transmissions.
Advisors/Committee Members: Balfour, Barbara (advisor).
Subjects/Keywords: Aesthetics; Body; Text; Art; Ground; Icon; Deformation; Transgression; Occult; Incantation
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APA (6th Edition):
Coulombe, D. V. (2016). Landscapes of the Hinged Trunk: With Seams of Glass and Bone. (Masters Thesis). York University. Retrieved from http://hdl.handle.net/10315/32296
Chicago Manual of Style (16th Edition):
Coulombe, Derek Victor. “Landscapes of the Hinged Trunk: With Seams of Glass and Bone.” 2016. Masters Thesis, York University. Accessed January 24, 2021.
http://hdl.handle.net/10315/32296.
MLA Handbook (7th Edition):
Coulombe, Derek Victor. “Landscapes of the Hinged Trunk: With Seams of Glass and Bone.” 2016. Web. 24 Jan 2021.
Vancouver:
Coulombe DV. Landscapes of the Hinged Trunk: With Seams of Glass and Bone. [Internet] [Masters thesis]. York University; 2016. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10315/32296.
Council of Science Editors:
Coulombe DV. Landscapes of the Hinged Trunk: With Seams of Glass and Bone. [Masters Thesis]. York University; 2016. Available from: http://hdl.handle.net/10315/32296
Luleå University of Technology
8.
Kesaraju, Saiveena.
A study of Ground Deformation over the Kiruna region using the StaMPS Technique.
Degree: 2012, Luleå University of Technology
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-46560
► In recent years, ground deformations were observed in and around Kiruna city region [67º49'48"N, 20º25'48"E] caused due to the mining of iron ore near…
(more)
▼ In recent years, ground deformations were observed in and around Kiruna city region [67º49'48"N, 20º25'48"E] caused due to the mining of iron ore near the city. The main focus of this thesis is to study the performance of Stanford Method of Persistent Scatter (StaMPS) processing developed by A.Hooper, to determine the ground deformation around this region and its ability to measure wide range of deformation rates in different seasons and terrains at such high latitudes. The Synthetic Aperture Radar (SAR) data from Envisat satellite collected over the study area, during the time period of 2002-2010 is used for the application of StaMPS technique. The ground deformation rate in mm/yr along line of sight direction of satellite is obtained. The consistency of estimated values and the estimates obtained by using Coherent Target Monitoring technique (CTM) on data from Radarsat-2 satellite is then verified. A comparative analysis is done by decomposing line of sight deformation rate into vertical deformation rate and deriving the linear relationship between both of them. The results show that the StaMPS technique is able to identify deformation around 0-3 mm/yr in the central city area and greater than 5 mm/yr in the region close to the mine. The performance of the technique is better using summer data rather than the winter, when ground is covered with snow. The vertical deformation estimates from using CTM technique and Radarsat-2 data and of Envisat data using StaMPS technique are in the same range, i.e, [0 8] mm/year in overall study area but are highly consistent in only some of the regions.
Validerat; 20120909 (anonymous)
Subjects/Keywords: Technology; SAR; StaMPS; Kiruna; deformation; ground; Envisat; Teknik
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Manager
APA (6th Edition):
Kesaraju, S. (2012). A study of Ground Deformation over the Kiruna region using the StaMPS Technique. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-46560
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kesaraju, Saiveena. “A study of Ground Deformation over the Kiruna region using the StaMPS Technique.” 2012. Thesis, Luleå University of Technology. Accessed January 24, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-46560.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kesaraju, Saiveena. “A study of Ground Deformation over the Kiruna region using the StaMPS Technique.” 2012. Web. 24 Jan 2021.
Vancouver:
Kesaraju S. A study of Ground Deformation over the Kiruna region using the StaMPS Technique. [Internet] [Thesis]. Luleå University of Technology; 2012. [cited 2021 Jan 24].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-46560.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kesaraju S. A study of Ground Deformation over the Kiruna region using the StaMPS Technique. [Thesis]. Luleå University of Technology; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-46560
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Victoria University of Wellington
9.
Morris, Philippa.
Accommodating ~9 m of dextral slip on the Kekerengu Fault through ground deformation during the Mw 7.8 Kaikōura Earthquake, November 2016.
Degree: 2020, Victoria University of Wellington
URL: http://hdl.handle.net/10063/9213
► The Mw 7.8 Kaikōura earthquake of November 14th 2016 provided unprecedented opportunities to understand how the ground deforms during large magnitude strike-slip earthquakes. The re-excavation…
(more)
▼ The Mw 7.8 Kaikōura earthquake of November 14th 2016 provided unprecedented opportunities to understand how the
ground deforms during large magnitude strike-slip earthquakes. The re-excavation and extension of both halves of a displaced paleoseismic trench following this earthquake provided an opportunity to test, refine, and extend back in time the known late Holocene chronology of surface rupturing earthquakes on the Kekerengu Fault. As part of this thesis, 28 organic-bearing samples were collected from a suite of new paleoseismic trenches. Six of these samples were added to the preferred age model from Little et al. (2018); this updated age model is now based on 16 total samples. Including the 2016 earthquake, six surface rupturing earthquakes since ~2000 cal. B.P. are now identified and dated on the Kekerengu Fault. Based on the latest five events (E0 to E4), this analysis yields an updated mean recurrence interval estimate for the Kekerengu Fault of 375 ± 32 yrs (1σ) since ~1650 cal. B.P. The older, sixth event (E5) is not included in the preferred model, as it may not have directly preceded E4; however, if this additional event is incorporated into an alternative age model that embraces all six identified events, the mean recurrence interval estimate (considered a maximum) calculated is 433 ± 22 yrs (1σ) since ~2000 cal. B.P.
Comparison of structures on an identical trench wall logged both before and after the 2016 earthquake, and analysis of pre- and post-earthquake high resolution imagery and Digital Surface Models (DSMs), has allowed the quantification of where and how ~9 m of dextral-oblique slip was accommodated at this site during the earthquake. In addition to this, I analyse the coseismic structure of the adjoining segment of the 2016
ground rupture using detailed post-earthquake aerial orthophotography, to further investigate how geological surface structures (bulged-up moletrack structures) accommodated slip in the rupture zone. These combined analyses allowed me to identify two primary
deformation mechanisms that accommodated the large coseismic slip of this earthquake, and the incremental effect of that slip on the structural geology of the rupture zone. These processes include: a) discrete slip along strike-slip faults that bound a narrow, highly deformed inner rupture zone; and b), distributed
deformation within this inner rupture zone. The latter includes coseismic clockwise rotation of cohesive rafts of turf, soil and near-surface clay-rich sediment. During this process, these “turf rafts” detach from the underlying soil at a mean depth of ~0.7 m, shorten by ~2.5 m (in addition to shortening introduced by any local contractional heave), bulge upwards by < 1 m, and rotate clockwise by ~19° - while also separating from one another along fissures bounded by former (now rotated) synthetic Riedel faults. This rotational
deformation accommodated ~3 m of dextral strike-slip (of a total of ~9 m), after which this rotation apparently ceased, regardless of the total slip or the local kinematics (degree…
Advisors/Committee Members: Little, Timothy, Van Dissen , Russ, Hill, Matthew.
Subjects/Keywords: Kaikōura earthquake; Ground deformation; Paleoseismology; Structural geology; Moletracks
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APA (6th Edition):
Morris, P. (2020). Accommodating ~9 m of dextral slip on the Kekerengu Fault through ground deformation during the Mw 7.8 Kaikōura Earthquake, November 2016. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/9213
Chicago Manual of Style (16th Edition):
Morris, Philippa. “Accommodating ~9 m of dextral slip on the Kekerengu Fault through ground deformation during the Mw 7.8 Kaikōura Earthquake, November 2016.” 2020. Masters Thesis, Victoria University of Wellington. Accessed January 24, 2021.
http://hdl.handle.net/10063/9213.
MLA Handbook (7th Edition):
Morris, Philippa. “Accommodating ~9 m of dextral slip on the Kekerengu Fault through ground deformation during the Mw 7.8 Kaikōura Earthquake, November 2016.” 2020. Web. 24 Jan 2021.
Vancouver:
Morris P. Accommodating ~9 m of dextral slip on the Kekerengu Fault through ground deformation during the Mw 7.8 Kaikōura Earthquake, November 2016. [Internet] [Masters thesis]. Victoria University of Wellington; 2020. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10063/9213.
Council of Science Editors:
Morris P. Accommodating ~9 m of dextral slip on the Kekerengu Fault through ground deformation during the Mw 7.8 Kaikōura Earthquake, November 2016. [Masters Thesis]. Victoria University of Wellington; 2020. Available from: http://hdl.handle.net/10063/9213
University of Missouri – Columbia
10.
Deng, Huazeng.
Ground based interferometric radar initial look at Longview, Blue Springs, Tuttle Creek, and Milford Dams.
Degree: 2012, University of Missouri – Columbia
URL: http://hdl.handle.net/10355/15940
► Measuring millimeter and smaller deformation has been demonstrated in the literature using RADAR. To address in part the limitations in current commercial satellite-based SAR datasets,…
(more)
▼ Measuring millimeter and smaller
deformation has been demonstrated in the literature using RADAR. To address in part the limitations in current commercial satellite-based SAR datasets, a University of Missouri (MU) team worked with GAMMA Remote Sensing to develop a specialized (dual-frequency, polarimetric, and interferometric)
ground-based real-aperture RADAR (GBIR) instrument. This thesis details a number of my efforts on experimental and processing activities at the start of the MU GBIR imaging project. A number of initial-processed GBIR image products are presented from four dams: Longview, Blue Springs, Tuttle Creek, and Milford. Excellent imaging performance of the MU GBIR has been observed for various target types such as riprap, concrete, soil, rock, metal, and vegetation. Strong coherence of the test scene has been observed in the initial interferograms.
Advisors/Committee Members: Legarsky, Justin J. (advisor).
Subjects/Keywords: ground-based real-aperture RADAR; image products; deformation measurement
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APA (6th Edition):
Deng, H. (2012). Ground based interferometric radar initial look at Longview, Blue Springs, Tuttle Creek, and Milford Dams. (Thesis). University of Missouri – Columbia. Retrieved from http://hdl.handle.net/10355/15940
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Deng, Huazeng. “Ground based interferometric radar initial look at Longview, Blue Springs, Tuttle Creek, and Milford Dams.” 2012. Thesis, University of Missouri – Columbia. Accessed January 24, 2021.
http://hdl.handle.net/10355/15940.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Deng, Huazeng. “Ground based interferometric radar initial look at Longview, Blue Springs, Tuttle Creek, and Milford Dams.” 2012. Web. 24 Jan 2021.
Vancouver:
Deng H. Ground based interferometric radar initial look at Longview, Blue Springs, Tuttle Creek, and Milford Dams. [Internet] [Thesis]. University of Missouri – Columbia; 2012. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10355/15940.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Deng H. Ground based interferometric radar initial look at Longview, Blue Springs, Tuttle Creek, and Milford Dams. [Thesis]. University of Missouri – Columbia; 2012. Available from: http://hdl.handle.net/10355/15940
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Vilnius Gediminas Technical University
11.
Jankauskas,
Arūnas.
Vibromonolitinio polio ir pagrindo sąveikos
vietoje atsirandančių deformacijų fizinio modelio
sudarymas.
Degree: Master, Civil Enginering, 2010, Vilnius Gediminas Technical University
URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100609_125308-12189
;
► Baigiamajame magistro darbe kuriamas dviejų polių įgilinimo metu atsirandančių grunto masyvo deformacijų fizinis modelis, įvertinus užsienio šalių patirtį šioje srityje. Išnagrinėti pagrindiniai principai, kuriais remiantis…
(more)
▼ Baigiamajame magistro darbe kuriamas dviejų
polių įgilinimo metu atsirandančių grunto masyvo deformacijų
fizinis modelis, įvertinus užsienio šalių patirtį šioje srityje.
Išnagrinėti pagrindiniai principai, kuriais remiantis buvo
sudarytas fizinis modelis moreniniuose gruntuose. Pateikta
eksperimentinės aikštelės fizinė geografinė padėtis, geologinė
litologinė sandara, grunto fizikinės ir mechaninės savybės,
hidrogeologinės sąlygos, modelio sudarymo metodika, laboratorinių
bei lauko bandymų rezultatų analizė. Įvertinus teorinius ir
praktiškai gautus fizinio modelio aspektus, pateikiamos baigiamojo
darbo išvados ir siūlymai.
The thesis developed a two-pile įgilinimo
the resulting array of soil physical deformation model, the
assessment of foreign experience in this field. The main
principles, which were drawn up in a physical model of morene soil.
Submitted to the experimental site physical geographical location,
geological lotological structure, soil physical mechanical
characteristics, hydrogeological conditions, design methodologies,
laboratory and field test results of the analysis. The assessment
of the theoretical and practical aspects of the model obtained by
physical, the conclusions and suggestions. The work consists of
three parts: introduction, World of impact and interaction of soil
physical models for review, installed by vibro pile and soil
interaction physical model, the theoretical pile and soil
interaction model, conclusions, references.
Advisors/Committee Members: Mackevičius, Rimantas (Master’s thesis reviewer), Gadeikytė, Sonata (Master’s thesis supervisor), Norkus, Arnoldas (Master’s thesis reviewer), Krutinis, Antanas (Master’s degree committee member), Gajauskas, Julius (Master’s degree committee chair).
Subjects/Keywords: Grunto
deformacijos; Grunto
masyvas; Fizikinis
modelis; Tankio vertė; Vibropolis; Ground
deformation; Ground array; The physical
model; Density value; Vibropile
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jankauskas,
Arūnas. (2010). Vibromonolitinio polio ir pagrindo sąveikos
vietoje atsirandančių deformacijų fizinio modelio
sudarymas. (Masters Thesis). Vilnius Gediminas Technical University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100609_125308-12189 ;
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Chicago Manual of Style (16th Edition):
Jankauskas,
Arūnas. “Vibromonolitinio polio ir pagrindo sąveikos
vietoje atsirandančių deformacijų fizinio modelio
sudarymas.” 2010. Masters Thesis, Vilnius Gediminas Technical University. Accessed January 24, 2021.
http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100609_125308-12189 ;.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
MLA Handbook (7th Edition):
Jankauskas,
Arūnas. “Vibromonolitinio polio ir pagrindo sąveikos
vietoje atsirandančių deformacijų fizinio modelio
sudarymas.” 2010. Web. 24 Jan 2021.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
Jankauskas,
Arūnas. Vibromonolitinio polio ir pagrindo sąveikos
vietoje atsirandančių deformacijų fizinio modelio
sudarymas. [Internet] [Masters thesis]. Vilnius Gediminas Technical University; 2010. [cited 2021 Jan 24].
Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100609_125308-12189 ;.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Council of Science Editors:
Jankauskas,
Arūnas. Vibromonolitinio polio ir pagrindo sąveikos
vietoje atsirandančių deformacijų fizinio modelio
sudarymas. [Masters Thesis]. Vilnius Gediminas Technical University; 2010. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100609_125308-12189 ;
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Virginia Tech
12.
Kamalzare, Soheil.
Performance of Columnar Reinforced Ground during Seismic Excitation.
Degree: PhD, Civil Engineering, 2017, Virginia Tech
URL: http://hdl.handle.net/10919/74876
► Deep soil mixing to construct stiff columns is one of the methods used today to improve performance of loose ground and remediate liquefaction problems. This…
(more)
▼ Deep soil mixing to construct stiff columns is one of the methods used today to improve performance of loose
ground and remediate liquefaction problems. This research adopts a numerical approach to study seismic performance of soil-cement columnar reinforcements in loose sandy profiles. Different constitutive models were investigated in order to find a model that can properly predict soil behavior during seismic excitations. These models included NorSand, Dafalias-Manzari, Plasticity Model for Sands (PM4Sand) and Pressure-Dependent-Multi-Yield-02 (PDMY02) model. They were employed to predict behavior of soils with different relative densities and under different confining pressures during monotonic and cyclic loading. PDMY02 was identified as the most suitable model to represent soil seismic behavior for the system studied herein.
The numerical aspects of the finite element approach were investigated to minimize the unintended numerical miscalculations. The focus was put on convergence tolerance, solver time-step, constraint definition, and, integration, material and Rayleigh damping. This resulted in forming a robust numerical configuration for 3-D nonlinear models that were later used for studying behavior of the reinforced grounds.
Nonlinear finite element models were developed to capture the seismic response of columnar reinforced
ground during dynamic centrifuge testing. The models were calibrated with results from tests with unreinforced profiles. Thereafter, they were implemented to predict the response of two reinforced profiles during seismic excitations with different intensities and liquefaction triggering. Model predictions were compared with recordings and the possible effects from the reinforcements were discussed. Finally, parametric studies were performed to further evaluate the efficiency of the reinforcements with different extension depths and area replacement ratios.
The results collectively showed that the stiff elements, if constructed appropriately, can withstand seismic excitations with different intensities, and provide a firm base for overlying structures. However, the presence of the stiff elements within the loose
ground resulted in stronger seismic intensities on the soil surface. The columns were not able to considerably reduce pore water pressure generation, nor prevent liquefaction triggering. The reinforced profiles, comparing to the free-field profiles, had larger settlements on the soil surface but smaller settlements on the columns. The results concluded that utilization of the columnar reinforcements requires great attention as these reinforcements may result in larger seismic intensities at the
ground surface, while not considerably reducing the
ground deformations.
Advisors/Committee Members: Olgun, Celal Guney (committeechair), Green, Russell A. (committee member), Rodriguez-Marek, Adrian (committee member), Dove, Joseph E. (committee member), Flint, Madeleine Marie (committee member).
Subjects/Keywords: Ground Improvement; Soil-Cement-Columns; Seismic Intensity Variation; Liquefaction Triggering; Ground Deformation; Constitutive Modeling; 3-D Nonlinear Finite Element Modeling
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APA ·
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APA (6th Edition):
Kamalzare, S. (2017). Performance of Columnar Reinforced Ground during Seismic Excitation. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/74876
Chicago Manual of Style (16th Edition):
Kamalzare, Soheil. “Performance of Columnar Reinforced Ground during Seismic Excitation.” 2017. Doctoral Dissertation, Virginia Tech. Accessed January 24, 2021.
http://hdl.handle.net/10919/74876.
MLA Handbook (7th Edition):
Kamalzare, Soheil. “Performance of Columnar Reinforced Ground during Seismic Excitation.” 2017. Web. 24 Jan 2021.
Vancouver:
Kamalzare S. Performance of Columnar Reinforced Ground during Seismic Excitation. [Internet] [Doctoral dissertation]. Virginia Tech; 2017. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10919/74876.
Council of Science Editors:
Kamalzare S. Performance of Columnar Reinforced Ground during Seismic Excitation. [Doctoral Dissertation]. Virginia Tech; 2017. Available from: http://hdl.handle.net/10919/74876
13.
Xu, Xiaohua.
Earthquake cycle study with geodetic tools.
Degree: Earth Sciences, 2017, University of California – San Diego
URL: http://www.escholarship.org/uc/item/6gg9r2r0
► In this dissertation, I use space-based geodetic data to study the ground deformation caused by the earthquake cycle processes. Chapter 1 is an introduction to…
(more)
▼ In this dissertation, I use space-based geodetic data to study the ground deformation caused by the earthquake cycle processes. Chapter 1 is an introduction to the data I used and the motivation on each of the following chapters. Chapter 2 focuses on investigating a controversial problem brought up by several co-seismic inversions using geodetic data, which is called the shallow slip deficit. I explored whether this problem is largely an artifact of inversion due to incomplete data and refined the magnitude of this deficit. Chapter 3, following Chapter 2 develops a new data-driven spectral expansion approach for co-seismic slip inversion using geodetic data. Compared to traditional method, it isolates the unstable part of the model and only solves for the well-determined part. Meanwhile we also developed a 1-D thermal model to understand the different down-dip rupture limits of continental-continental and continental-oceanic megathrust events. Chapter 4 aims at understanding the new TOPS mode data from Sentinel-1 satellites and fully testing the capability of this dataset. A subsidence of about 160 mm/yr at the Cerro Prieto Geothermal Field is recovered together with a 40 mm/yr tectonic fault parallel motion at the nearby region. Chapter 5 further develops the processing algorithm used in Chapter 4 and uses Sentinel-1 data to reveal both tectonic and anthropogenic deformation along the San Andreas Fault System.
Subjects/Keywords: Geophysics; Earthquake cycle; Ground deformation; InSAR; Inverse theory; Shallow slip deficit; Time series
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Manager
APA (6th Edition):
Xu, X. (2017). Earthquake cycle study with geodetic tools. (Thesis). University of California – San Diego. Retrieved from http://www.escholarship.org/uc/item/6gg9r2r0
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Xu, Xiaohua. “Earthquake cycle study with geodetic tools.” 2017. Thesis, University of California – San Diego. Accessed January 24, 2021.
http://www.escholarship.org/uc/item/6gg9r2r0.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Xu, Xiaohua. “Earthquake cycle study with geodetic tools.” 2017. Web. 24 Jan 2021.
Vancouver:
Xu X. Earthquake cycle study with geodetic tools. [Internet] [Thesis]. University of California – San Diego; 2017. [cited 2021 Jan 24].
Available from: http://www.escholarship.org/uc/item/6gg9r2r0.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Xu X. Earthquake cycle study with geodetic tools. [Thesis]. University of California – San Diego; 2017. Available from: http://www.escholarship.org/uc/item/6gg9r2r0
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Southern California
14.
Liu, Fang.
Data discovery on liquefaction-induced lateral ground
deformations.
Degree: PhD, Civil Engineering, 2010, University of Southern California
URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/133397/rec/1765
► Liquefaction-induced deformations during earthquake pose considerable risks to lifeline systems in urban areas. Empirical models, benefiting from case histories, are preferable for regionally assessing those…
(more)
▼ Liquefaction-induced deformations during earthquake
pose considerable risks to lifeline systems in urban areas.
Empirical models, benefiting from case histories, are preferable
for regionally assessing those deformations. Case histories of
liquefaction grow rapidly and require new information technologies
in data management. Based on pure regression analysis, those
existing empirical models explain little physical mechanism. The
objectives of this research are to improve data management of
liquefaction-related case histories, and to develop the new
generation of models that corroborate physical mechanism of
liquefaction-induced lateral
ground deformations. This goal is
approached in four major steps.; The first step provides guidelines
on gathering perishable information and automating Web reports of
Post-Earthquake Reconnaissance (PER). Embedded metadata formats are
applied to an example of the 2008 Wenchuan, China earthquake when
documenting PER data. This application identifies the potential of
inline metadata formats in establishing the Virtual Earthquake, a
global-wide information system for archiving and sharing PER data
in a spatial context.; The second step presents a new information
system useful for distributing case histories of
liquefaction-induced
ground deformations over the Word Wide Web.
Benefiting from AJAX (Asynchronous JavaScript and XML), and
database technologies, this system is an interactive and
lightweight application supported by external data from multiple
data vendors.; The third step scrutinizes existing empirical models
using a subset of case histories that are gathered and managed in
the previous steps. This case study develops maps of liquefaction
severity and liquefaction-induced lateral deformations from those
existing models. The disagreement between the simulation results
and the field observations infers a knowledge insufficiency in the
regional evaluation of liquefaction-induced lateral
ground
deformations and therefore raises a demand for the next generation
of models.; The fourth step is towards a new model that
corroborates physical mechanism of liquefaction-induced
deformations. Using a physical model and probabilistic analysis,
PGV (Peak
Ground Velocity) is demonstrated to be a significant
parameter that characterizes earthquake contributions to the
motions of mass that temporarily loses shear strength due to
liquefaction. A PGV-dependent model is derived based on case
histories to account for the importance of PGV for
liquefaction-induced lateral
ground deformations.
Advisors/Committee Members: Bardet, Jean-Pierre (Committee Chair), Martin, Geoffrey R. (Committee Member), Ershaghi, Iraj (Committee Member), Rechenmacher, Amy L. (Committee Member), Ghanem, Roger Georges (Committee Member).
Subjects/Keywords: liquefaction; lateral ground deformation; earthquake; data; information
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liu, F. (2010). Data discovery on liquefaction-induced lateral ground
deformations. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/133397/rec/1765
Chicago Manual of Style (16th Edition):
Liu, Fang. “Data discovery on liquefaction-induced lateral ground
deformations.” 2010. Doctoral Dissertation, University of Southern California. Accessed January 24, 2021.
http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/133397/rec/1765.
MLA Handbook (7th Edition):
Liu, Fang. “Data discovery on liquefaction-induced lateral ground
deformations.” 2010. Web. 24 Jan 2021.
Vancouver:
Liu F. Data discovery on liquefaction-induced lateral ground
deformations. [Internet] [Doctoral dissertation]. University of Southern California; 2010. [cited 2021 Jan 24].
Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/133397/rec/1765.
Council of Science Editors:
Liu F. Data discovery on liquefaction-induced lateral ground
deformations. [Doctoral Dissertation]. University of Southern California; 2010. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/133397/rec/1765
Virginia Tech
15.
Rauch, Alan F.
EPOLLS: An Empirical Method for Prediciting Surface Displacements Due to Liquefaction-Induced Lateral Spreading in Earthquakes.
Degree: PhD, Civil Engineering, 1997, Virginia Tech
URL: http://hdl.handle.net/10919/30346
► In historical, large-magnitude earthquakes, lateral spreading has been a very damaging type of ground failure. When a subsurface soil deposit liquefies, intact blocks of surficial…
(more)
▼ In historical, large-magnitude earthquakes, lateral spreading has been a very damaging type of
ground failure. When a subsurface soil deposit liquefies, intact blocks of surficial soil can move downslope, or toward a vertical free face, even when the
ground surface is nearly level. A lateral spread is defined as the mostly horizontal movement of gently sloping
ground (less than 5% surface slope) due to elevated pore pressures or liquefaction in undelying, saturated soils. Here, lateral spreading is defined specifically to exclude liquefaction failures of steeper embankments and retaining walls, which can also produce lateral surface deformations. Lateral spreads commonly occur at waterfront sites underlain by saturated, recent sediments and are particularly threatening to buried utilities and transportation networks. While the occurrence of soil liquefaction and lateral spreading can be predicted at a given site, methods are needed to estimate the magnitude of the resulting deformations.
In this research effort, an empirical model was developed for predicting horizontal and vertical surface displacements due to liquefaction-induced lateral spreading. The resulting model is called "EPOLLS" for Empirical Prediction Of Liquefaction-induced Lateral Spreading. Multiple linear regression analyses were used to develop model equations from a compiled database of historical lateral spreads. The complete EPOLLS model is comprised of four components: (1) Regional-EPOLLS for predicting horizontal displacements based on the seismic source and local severity of shaking, (2) Site-EPOLLS for improved predictions with the addition of data on the site topography, (3) Geotechnical-EPOLLS using additional data from soil borings at the site, and (4) Vertical-EPOLLS for predicting vertical displacements. The EPOLLS model is useful in phased liquefaction risk studies: starting with regional risk assessments and minimal site information, more precise predictions of displacements can be made with the addition of detailed site-specific data. In each component of the EPOLLS model, equations are given for predicting the average and standard deviation of displacements. Maximum displacements can be estimated using probabilities and the gamma distribution for horizontal displacements or the normal distribution for vertical displacements.
Advisors/Committee Members: Martin, James R. II (committeechair), Brandon, THomas L. (committee member), Mitchell, James K. (committee member), Kriz, Ronald D. (committee member), Filz, George M. (committee member), Duncan, James Michael (committee member).
Subjects/Keywords: slope stability; lifeline damage; lateralspreading; ground deformation; soil liquefaction
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APA ·
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MLA ·
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CSE |
Export
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Manager
APA (6th Edition):
Rauch, A. F. (1997). EPOLLS: An Empirical Method for Prediciting Surface Displacements Due to Liquefaction-Induced Lateral Spreading in Earthquakes. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/30346
Chicago Manual of Style (16th Edition):
Rauch, Alan F. “EPOLLS: An Empirical Method for Prediciting Surface Displacements Due to Liquefaction-Induced Lateral Spreading in Earthquakes.” 1997. Doctoral Dissertation, Virginia Tech. Accessed January 24, 2021.
http://hdl.handle.net/10919/30346.
MLA Handbook (7th Edition):
Rauch, Alan F. “EPOLLS: An Empirical Method for Prediciting Surface Displacements Due to Liquefaction-Induced Lateral Spreading in Earthquakes.” 1997. Web. 24 Jan 2021.
Vancouver:
Rauch AF. EPOLLS: An Empirical Method for Prediciting Surface Displacements Due to Liquefaction-Induced Lateral Spreading in Earthquakes. [Internet] [Doctoral dissertation]. Virginia Tech; 1997. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10919/30346.
Council of Science Editors:
Rauch AF. EPOLLS: An Empirical Method for Prediciting Surface Displacements Due to Liquefaction-Induced Lateral Spreading in Earthquakes. [Doctoral Dissertation]. Virginia Tech; 1997. Available from: http://hdl.handle.net/10919/30346
16.
Fattahi, Heresh.
Geodetic Imaging of Tectonic Deformation with InSAR.
Degree: PhD, Marine Geology and Geophysics (Marine), 2015, University of Miami
URL: https://scholarlyrepository.miami.edu/oa_dissertations/1456
► Precise measurements of ground deformation across the plate boundaries are crucial observations to evaluate the location of strain localization and to understand the pattern of…
(more)
▼ Precise measurements of
ground deformation across the plate boundaries are crucial observations to evaluate the location of strain localization and to understand the pattern of strain accumulation at depth. Such information can be used to evaluate the possible location and magnitude of future earthquakes. Interferometric Synthetic Aperture Radar (InSAR) potentially can deliver small-scale (few mm/yr)
ground displacement over long distances (hundreds of kilometers) across the plate boundaries and over continents. However, Given the
ground displacement as our signal of interest, the InSAR observations of
ground deformation are usually affected by several sources of systematic and random noises. In this dissertation I identify several sources of systematic and random noise, develop new methods to model and mitigate the systematic noise and to evaluate the uncertainty of the
ground displacement measured with InSAR. I use the developed approach to characterize the tectonic
deformation and evaluate the rate of strain accumulation along the Chaman fault system, the western boundary of the India with Eurasia tectonic plates. I evaluate the bias due to the topographic residuals in the InSAR range-change time-series and develope a new method to estimate the topographic residuals and mitigate the effect from the InSAR range-change time-series (Chapter 2). I develop a new method to evaluate the uncertainty of the InSAR velocity field due to the uncertainty of the satellite orbits (Chapter 3) and a new algorithm to automatically detect and correct the phase unwrapping errors in a dense network of interferograms (Chapter 4). I develop a new approach to evaluate the impact of systematic and stochastic components of the tropospheric delay on the InSAR displacement time-series and its uncertainty (Chapter 5). Using the new InSAR time-series approach developed in the previous chapters, I study the tectonic
deformation across the western boundary of the India plate with Eurasia and evaluated the rate of strain accumulation along the Chaman fault system (Chapter 5). I also evaluate the co-seismic and post-seismic displacement of a moderate M5.5 earthquake on the Ghazaband fault (Chapter 6). The developed methods to mitigate the systematic noise from InSAR time-series, significantly improve the accuracy of the InSAR displacement time-series and velocity. The approaches to evaluate the effect of the stochastic components of noise in InSAR displacement time-series enable us to obtain the variance-covariance matrix of the InSAR displacement time-series and to express their uncertainties. The effect of the topographic residuals in the InSAR range-change time-series is proportional to the perpendicular baseline history of the set of SAR acquisitions. The proposed method for topographic residual correction, efficiently corrects the displacement time-series. Evaluation of the uncertainty of velocity due to the orbital errors shows that for modern SAR satellites with precise orbits such as TerraSAR-X and Sentinel-1, the uncertainty of 0.2…
Advisors/Committee Members: Falk Amelung, Shimon Wdowinski, Timothy Dixon, Guoqing Lin.
Subjects/Keywords: InSAR; Uncertainty; Space Geodesy; Tectonic deformation; Earthquake; Ground deformation; long-wavelength deformation
…analysis is possible through
precise measurements of ground deformation across the locked faults… …locking depth, corresponds to Mw 7.3
earthquake every 300 years.
Measuring ground deformation… …characterize the ground
deformation and to evaluate the rate of strain accumulation and release… …series (decadal) and
accurate observations of ground deformation, such observations… …1
1.2 Models of deformation for crust and mantle…
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APA (6th Edition):
Fattahi, H. (2015). Geodetic Imaging of Tectonic Deformation with InSAR. (Doctoral Dissertation). University of Miami. Retrieved from https://scholarlyrepository.miami.edu/oa_dissertations/1456
Chicago Manual of Style (16th Edition):
Fattahi, Heresh. “Geodetic Imaging of Tectonic Deformation with InSAR.” 2015. Doctoral Dissertation, University of Miami. Accessed January 24, 2021.
https://scholarlyrepository.miami.edu/oa_dissertations/1456.
MLA Handbook (7th Edition):
Fattahi, Heresh. “Geodetic Imaging of Tectonic Deformation with InSAR.” 2015. Web. 24 Jan 2021.
Vancouver:
Fattahi H. Geodetic Imaging of Tectonic Deformation with InSAR. [Internet] [Doctoral dissertation]. University of Miami; 2015. [cited 2021 Jan 24].
Available from: https://scholarlyrepository.miami.edu/oa_dissertations/1456.
Council of Science Editors:
Fattahi H. Geodetic Imaging of Tectonic Deformation with InSAR. [Doctoral Dissertation]. University of Miami; 2015. Available from: https://scholarlyrepository.miami.edu/oa_dissertations/1456
17.
Chevalier, Laure.
Evolution des conditions d’écoulement du magma et du dégazage dans les conduits éruptifs des volcans andésitiques : apports de la modélisation numérique : Evolution of magma flow and degassing conditions in the upper conduit at andesitic volcanoes : insights from numerical modelling.
Degree: Docteur es, Sciences de la terre et de l'univers, et de l'environnement, 2017, Université Grenoble Alpes (ComUE)
URL: http://www.theses.fr/2017GREAU008
► L'activité des volcans andésitiques, tels que le Mont St Helens (États-Unis), Montserrat (Antilles) ou encore le Merapi (Indonésie), alterne entre des périodes relativement calmes, avec…
(more)
▼ L'activité des volcans andésitiques, tels que le Mont St Helens (États-Unis), Montserrat (Antilles) ou encore le Merapi (Indonésie), alterne entre des périodes relativement calmes, avec coulées de lave et formation d'un dôme, et des événements explosifs parfois très violents. Prévoir les transitions entre ces deux régimes est essentiel pour assurer la sécurité des populations voisines, mais demeure actuellement un vrai défi. Or les données expérimentales et les observations de terrain montrent que l'explosivité du magma est étroitement liée à son contenu en gaz. L'objectif de cette thèse est d'améliorer notre compréhension de l'évolution de ce contenu en gaz et de son influence sur l'activité volcanique, en nous appuyant sur des simulations numériques, l'analyse de données expérimentales ainsi que sur l'interprétation de données de déformation enregistrées au Merapi.Une part importante de ce travail réside dans le développement et l'amélioration de modèles d'écoulement en 2D pour prendre en compte le dégazage dans la partie supérieure du conduit, en régime transitoire. Nous présentons un modèle d'écoulement du gaz en temps qui tient compte des pertes en gaz aux bords du conduit et à sa sortie, selon les conditions présentes dans la roche encaissante et le dôme. Nous proposons également une adaptation des modèles de conduit permettant de coupler complètement l'écoulement du gaz avec celui du magma pour étudier l'évolution des conditions dans le conduit en régime transitoire. À partir de simulations de l'évolution du dégazage lors de l'emplacement d'un dôme, nous identifions les para-mètres contrôlant les pertes en gaz. Nos résultats montrent que ces pertes sont extrêmement sensibles à l'évolution de la perméabilité du magma et des gradients de pression autour du conduit en réponse au poids du dôme. La perméabilité du dôme a quant à elle peu d'influence. Au cours de la croissance du dôme, les pertes en gaz diminuent en profondeur. En haut du conduit, la pression du gaz augmente de quelques dizaines de MPa. Ces effets sont associés à une augmentation de l'explosivité du magma et de l'aléa volcanique en cas d'effondrement du dôme.Bien que la perméabilité du magma exerce un fort contrôle sur la perte de gaz, comme l'ont montré nos résultats, son évolution dans le conduit est peu contrainte. Les lois de perméabilité utilisées actuellement ne sont pas en accord avec l'ensemble des mesures réalisées sur des échantillons de magmas riches en silice. Dans le but d'améliorer notre compréhension du développement de la perméabilité dans le conduit, nous avons cherché à éclaircir le lien entre perméabilité, conditions d'écoulements, et caractéristiques géométriques du réseau de bulles connectées. Nous proposons une formulation du seuil de percolation, moment exact où le magma devient perméable compatible avec un grand nombre d'échantillons naturels et expérimentaux. Nous présentons aussi une nouvelle loi de perméabilité en accord avec la plupart des observations existantes, que nous avons intégrée à notre modèle 2D de dégazage. Nos…
Advisors/Committee Members: Pinel, Virginie (thesis director), Collombet, Marielle (thesis director).
Subjects/Keywords: Volcan andésitique; Écoulement du magma; Dégazage; Déformation de surface; Merapi; Modélisation numérique; Andesitic volcano; Magma flow; Gas loss; Ground deformation; Merapi; Numerical modelling; 550
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APA (6th Edition):
Chevalier, L. (2017). Evolution des conditions d’écoulement du magma et du dégazage dans les conduits éruptifs des volcans andésitiques : apports de la modélisation numérique : Evolution of magma flow and degassing conditions in the upper conduit at andesitic volcanoes : insights from numerical modelling. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2017GREAU008
Chicago Manual of Style (16th Edition):
Chevalier, Laure. “Evolution des conditions d’écoulement du magma et du dégazage dans les conduits éruptifs des volcans andésitiques : apports de la modélisation numérique : Evolution of magma flow and degassing conditions in the upper conduit at andesitic volcanoes : insights from numerical modelling.” 2017. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed January 24, 2021.
http://www.theses.fr/2017GREAU008.
MLA Handbook (7th Edition):
Chevalier, Laure. “Evolution des conditions d’écoulement du magma et du dégazage dans les conduits éruptifs des volcans andésitiques : apports de la modélisation numérique : Evolution of magma flow and degassing conditions in the upper conduit at andesitic volcanoes : insights from numerical modelling.” 2017. Web. 24 Jan 2021.
Vancouver:
Chevalier L. Evolution des conditions d’écoulement du magma et du dégazage dans les conduits éruptifs des volcans andésitiques : apports de la modélisation numérique : Evolution of magma flow and degassing conditions in the upper conduit at andesitic volcanoes : insights from numerical modelling. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2017. [cited 2021 Jan 24].
Available from: http://www.theses.fr/2017GREAU008.
Council of Science Editors:
Chevalier L. Evolution des conditions d’écoulement du magma et du dégazage dans les conduits éruptifs des volcans andésitiques : apports de la modélisation numérique : Evolution of magma flow and degassing conditions in the upper conduit at andesitic volcanoes : insights from numerical modelling. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2017. Available from: http://www.theses.fr/2017GREAU008
University of Kentucky
18.
Intsiful, Sekyi K.
DEFORMATION-BASED EXCAVATION SUPPORT SYSTEM DESIGN METHOD.
Degree: 2015, University of Kentucky
URL: https://uknowledge.uky.edu/ce_etds/29
► Development in urban areas around the world has steadily increased in recent years. This rapid development has not been matched by the ever decreasing open…
(more)
▼ Development in urban areas around the world has steadily increased in recent years. This rapid development has not been matched by the ever decreasing open space commonly associated with urban centers. Vertical construction, thus, lends itself a very useful solution to this problem. Deep excavation is often required for urban construction. Unfortunately, the ground movements associated with deep excavation can result in damage to adjacent buildings. Thus, it is critically important to accurately predict the damage potential of nearby deep excavations and designing adequate support systems.
A new design method is proposed, as an attempt, to address the problem. The method is semi-empirical and directly links excavation-induced distortions experienced by nearby buildings and the components of the excavation support system. Unlike, the traditional limit equilibrium approach, the method is driven by the distortions in adjacent buildings. It goes further to propose a preliminary cost chart to help designers during the design phase. The benefit is that initial cost is known real time and will help speed up making business decisions. A new design flowchart is proposed to guide the designer through a step-by-step procedure.
The method is validated using 2D Plaxis (the finite element program) simulation. Though the nature of deep excavation is three-dimensional, a plane strain condition is valid when the length of the excavation is long. Hence, two-dimensional finite element simulation was considered appropriate for this effort. Five hypothetical cases were compared and the model performed very well. The lack of available literature on this approach made verification difficult. It is hoped that future case histories will be used to ascertain the veracity of the deformation-based design method.
Subjects/Keywords: Excavation Support System; Preliminary Cost; Deformation; Ground Movements; 2D Finite Element Simulation; Rigidity Deficit; Civil Engineering; Construction Engineering and Management; Geotechnical Engineering; Structural Engineering
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APA (6th Edition):
Intsiful, S. K. (2015). DEFORMATION-BASED EXCAVATION SUPPORT SYSTEM DESIGN METHOD. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/ce_etds/29
Chicago Manual of Style (16th Edition):
Intsiful, Sekyi K. “DEFORMATION-BASED EXCAVATION SUPPORT SYSTEM DESIGN METHOD.” 2015. Masters Thesis, University of Kentucky. Accessed January 24, 2021.
https://uknowledge.uky.edu/ce_etds/29.
MLA Handbook (7th Edition):
Intsiful, Sekyi K. “DEFORMATION-BASED EXCAVATION SUPPORT SYSTEM DESIGN METHOD.” 2015. Web. 24 Jan 2021.
Vancouver:
Intsiful SK. DEFORMATION-BASED EXCAVATION SUPPORT SYSTEM DESIGN METHOD. [Internet] [Masters thesis]. University of Kentucky; 2015. [cited 2021 Jan 24].
Available from: https://uknowledge.uky.edu/ce_etds/29.
Council of Science Editors:
Intsiful SK. DEFORMATION-BASED EXCAVATION SUPPORT SYSTEM DESIGN METHOD. [Masters Thesis]. University of Kentucky; 2015. Available from: https://uknowledge.uky.edu/ce_etds/29
Virginia Tech
19.
Andrews, Kevin.
Enhancing Mine Subsidence Prediction and Control Methodologies for Long-Term Landscape Stability.
Degree: MS, Mining and Minerals Engineering, 2008, Virginia Tech
URL: http://hdl.handle.net/10919/33782
► Prediction and control methodologies for ground deformation due to underground mining (commonly referred to as mine subsidence) provide engineers with the means to minimize negative…
(more)
▼ Prediction and control methodologies for
ground deformation due to underground mining
(commonly referred to as mine subsidence) provide engineers with the means to minimize
negative effects on the surface. Due to the complexity of subsidence-related movements,
numerous techniques exist for predicting mine subsidence behavior. This thesis focuses on the
development, implementation, and validation of numerous enhanced subsidence prediction
methodologies. To facilitate implementation and validation, the improved methodologies have
been incorporated into the Surface
Deformation Prediction System (SDPS), a computer program
based primarily on the influence function method for subsidence prediction. The methodologies
include dynamic subsidence prediction, alternative model calibration capability, and enhanced risk-based damage assessment. Also, the influence function method is further validated using measured case study data. In addition to discussion of previous research for each of the
enhanced methodologies, a significant amount of background information on subsidence and
subsidence-related topics is provided. The results of the research presented in this thesis are expected to benefit the mining industry, as well as initiate ideas for future research.
Advisors/Committee Members: Karmis, Michael E. (committeechair), Agioutantis, Zacharias (committee member), Westman, Erik Christian (committee member), Karfakis, Mario G. (committee member).
Subjects/Keywords: subsidence prediction; risk-based damage analysis; long-term stability; dynamic subsidence; ground strain; ground deformation; subsidence; mine subsidence
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APA ·
Chicago ·
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CSE |
Export
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Manager
APA (6th Edition):
Andrews, K. (2008). Enhancing Mine Subsidence Prediction and Control Methodologies for Long-Term Landscape Stability. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/33782
Chicago Manual of Style (16th Edition):
Andrews, Kevin. “Enhancing Mine Subsidence Prediction and Control Methodologies for Long-Term Landscape Stability.” 2008. Masters Thesis, Virginia Tech. Accessed January 24, 2021.
http://hdl.handle.net/10919/33782.
MLA Handbook (7th Edition):
Andrews, Kevin. “Enhancing Mine Subsidence Prediction and Control Methodologies for Long-Term Landscape Stability.” 2008. Web. 24 Jan 2021.
Vancouver:
Andrews K. Enhancing Mine Subsidence Prediction and Control Methodologies for Long-Term Landscape Stability. [Internet] [Masters thesis]. Virginia Tech; 2008. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10919/33782.
Council of Science Editors:
Andrews K. Enhancing Mine Subsidence Prediction and Control Methodologies for Long-Term Landscape Stability. [Masters Thesis]. Virginia Tech; 2008. Available from: http://hdl.handle.net/10919/33782
Queens University
20.
Williams, Jan.
The Response of Glass Fibre Reinforced Polymer Pipe Subject to Longitudinal Bending in the Form of Vertical Ground Deformation
.
Degree: Civil Engineering, Queens University
URL: http://hdl.handle.net/1974/24897
► Glass fibre reinforced polymer (GFRP) pipe is a light weight alternative to steel pipe for oil and gas distribution pipelines that is corrosion resistant but…
(more)
▼ Glass fibre reinforced polymer (GFRP) pipe is a light weight alternative to steel pipe for oil and gas distribution pipelines that is corrosion resistant but whose material properties vary based on production technique and whose failure mechanisms are not well understood. These pipelines may cross through unstable terrain and be subject to flexural bending caused by ground motion causing split and leakage of their contents into the environment. This study examines the response of GFRP pipe to permanent ground deformation and the failure mechanisms exhibited by GFRP material. A series of full-scale tests were performed using the Split Box at the Queen’s University GeoEngineering Laboratory, a facility that can simulate a normal ground fault to mimic permanent ground deformation. Three 5.6 m long GFRP pipe segments were pressurized to zero, 300, and 1000 kPa respectively and subject to 120 mm of differential settlement, causing longitudinal bending at the crown and invert near the fault line. Fibre optic sensors installed longitudinally along the length of the buried samples reveal zones of peak strain and curvature. These zones located on either side of the fault line are shown to be asymmetrical with higher strains recorded on the stationary side of the fault line. The position and magnitude of peak curvature zones changed with increased pressure, shifting further away from the fault line with decreased curvature. The samples did not reach an ultimate limit state, however at 110 mm fault offset the buried pipe wall split resulting in water leaking at the peak curvature zones and pressure loss. Three four-point bending tests were also performed on similar pipe segments 1.8 m long. The flexural tests were used to establish a relationship between curvature and moment for the GFRP pipe which was then used to estimate the lengthwise moment distribution of the buried samples. Comparisons were also made to the flexural responses of the buried pipe.
Subjects/Keywords: Permanent Ground Deformation
;
Buried Pipeline
;
Pressurized Pipe
;
Normal Fault
;
Glass Fibre Reinforced Polymer
;
Full Scale
;
GFRP Pipe
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APA (6th Edition):
Williams, J. (n.d.). The Response of Glass Fibre Reinforced Polymer Pipe Subject to Longitudinal Bending in the Form of Vertical Ground Deformation
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/24897
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Williams, Jan. “The Response of Glass Fibre Reinforced Polymer Pipe Subject to Longitudinal Bending in the Form of Vertical Ground Deformation
.” Thesis, Queens University. Accessed January 24, 2021.
http://hdl.handle.net/1974/24897.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Williams, Jan. “The Response of Glass Fibre Reinforced Polymer Pipe Subject to Longitudinal Bending in the Form of Vertical Ground Deformation
.” Web. 24 Jan 2021.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Vancouver:
Williams J. The Response of Glass Fibre Reinforced Polymer Pipe Subject to Longitudinal Bending in the Form of Vertical Ground Deformation
. [Internet] [Thesis]. Queens University; [cited 2021 Jan 24].
Available from: http://hdl.handle.net/1974/24897.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
Council of Science Editors:
Williams J. The Response of Glass Fibre Reinforced Polymer Pipe Subject to Longitudinal Bending in the Form of Vertical Ground Deformation
. [Thesis]. Queens University; Available from: http://hdl.handle.net/1974/24897
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
21.
Duro, Javier.
Development of new methodologies for the detection, measurement and on going monitoring of ground deformation using spaceborne SAR data : Développement de nouvelles méthodes utilisant les images RSO satellitales pour la détection, la mesure et le suivi des mouvements de terrain.
Degree: Docteur es, Traitement du signal et des images, 2010, Université Paris-Est
URL: http://www.theses.fr/2010PEST1020
► Les techniques d'interférométrie sur réflecteurs persistants, ou points stables (PSI), sont des outils particulièrement efficaces pour le suivi des déformations du sol et offrent les…
(more)
▼ Les techniques d'interférométrie sur réflecteurs persistants, ou points stables (PSI), sont des outils particulièrement efficaces pour le suivi des déformations du sol et offrent les avantages typiques des systèmes de télédétection radar à synthèse d'ouverture (RSO) : une large couverture spatiale combinée à une résolution relativement élevée. Ces techniques sont basées sur l'analyse d'un jeu d'images RSO acquises sur une zone donnée. Elles permettent de régler le problème de décorrélation grâce à l'identification d'éléments particuliers (au sein de la cellule de résolution) dont la rétrodiffusion radar est de haute qualité et stable sur toute une série d'interférogrammes. Ces techniques sont fort efficaces (utiles ?) pour l'analyse de zones urbaines où les constructions constituent de bons réflecteurs avec une réflexion supérieure à celle du sol ; il en va de même pour des zones de campagne où la densité d'infrastructures est plus limitée. La technique PSI requiert un modèle temporel approximatif a priori pour la détection des déformations, bien que la caractérisation de l'évolution temporelle de la déformation soit communément l'un des objectifs des études. Le travail réalisé porte sur une technique PSI particulière, appelée Stable Point Network (SPN), Réseau de Points Stables, qui a été totalement développée par Altamira Information en 2003. Le travail présente de manière concise les caractéristiques de la technique et décrit les principaux produits générés : carte moyenne de déformation, séries temporelles de déformation des points mesurés, et les cartes de résidu d'erreur topographique utilisées pour géocoder de façon précise les produits PSI. Le principal objectif de cette thèse est l'identification et l'analyse des points faibles de la chaîne de traitement SPN et le développement de nouveaux outils et méthodologies pour résoudre les problèmes identifiés. Dans un premier temps, les performances de la technique SPN sont examinées et illustrées sur des cas pratiques (basés sur des sites test réels et à partir de données provenant de différents capteurs) et à l'aide de simulations. Les principaux points faibles de la technique sont identifiés et commentés, notamment le manque de paramètres automatiques de contrôle qualité, l'évaluation de la qualité des données d'entrée, la sélection de bons points pour la mesure ainsi que l'utilisation d'un modèle fonctionnel pour le déroulement de phase (franges interferometriques) basé sur une tendance linéaire de la déformation dans le temps. Différentes solutions sont ensuite envisagées. Nous nous intéressons tout particulièrement au contrôle qualité automatique dans la procédure de coregistration, en utilisant l'analyse du positionnement inter-pixel de certains points naturels, comme par exemple des pixels identifiés dans les images. L'amélioration de la sélection finale des points de mesure (carte PSI) s'obtient grâce à l'analyse de la signature du signal radar des cibles les plus puissantes présentes au sein de l'image, afin de sélectionner uniquement le centre du lobe…
Advisors/Committee Members: Deffontaines, Benoît (thesis director).
Subjects/Keywords: Télédétection; Interférométrie radar à synthèse d'ouverture (InSAR); Interférométrie sur réflecteurs persistants (PSI); Détection de déformations du sol non linéaires; Remote sensing; SAR interferometry (InSAR); Persistent scatterers interferometry (PSI); Non-linear ground deformation monitoring
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APA ·
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Manager
APA (6th Edition):
Duro, J. (2010). Development of new methodologies for the detection, measurement and on going monitoring of ground deformation using spaceborne SAR data : Développement de nouvelles méthodes utilisant les images RSO satellitales pour la détection, la mesure et le suivi des mouvements de terrain. (Doctoral Dissertation). Université Paris-Est. Retrieved from http://www.theses.fr/2010PEST1020
Chicago Manual of Style (16th Edition):
Duro, Javier. “Development of new methodologies for the detection, measurement and on going monitoring of ground deformation using spaceborne SAR data : Développement de nouvelles méthodes utilisant les images RSO satellitales pour la détection, la mesure et le suivi des mouvements de terrain.” 2010. Doctoral Dissertation, Université Paris-Est. Accessed January 24, 2021.
http://www.theses.fr/2010PEST1020.
MLA Handbook (7th Edition):
Duro, Javier. “Development of new methodologies for the detection, measurement and on going monitoring of ground deformation using spaceborne SAR data : Développement de nouvelles méthodes utilisant les images RSO satellitales pour la détection, la mesure et le suivi des mouvements de terrain.” 2010. Web. 24 Jan 2021.
Vancouver:
Duro J. Development of new methodologies for the detection, measurement and on going monitoring of ground deformation using spaceborne SAR data : Développement de nouvelles méthodes utilisant les images RSO satellitales pour la détection, la mesure et le suivi des mouvements de terrain. [Internet] [Doctoral dissertation]. Université Paris-Est; 2010. [cited 2021 Jan 24].
Available from: http://www.theses.fr/2010PEST1020.
Council of Science Editors:
Duro J. Development of new methodologies for the detection, measurement and on going monitoring of ground deformation using spaceborne SAR data : Développement de nouvelles méthodes utilisant les images RSO satellitales pour la détection, la mesure et le suivi des mouvements de terrain. [Doctoral Dissertation]. Université Paris-Est; 2010. Available from: http://www.theses.fr/2010PEST1020
Delft University of Technology
22.
Mahapatra, P.S.
Geodetic network design for InSAR: Application to ground deformation monitoring.
Degree: 2015, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6
;
urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6
;
urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6
;
http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6
► For the past two decades, interferometric synthetic aperture radar (InSAR) has been used to monitor ground deformation with subcentimetric precision from space. But the applicability…
(more)
▼ For the past two decades, interferometric synthetic aperture radar (InSAR) has been used to monitor
ground deformation with subcentimetric precision from space. But the applicability of this technique is limited in regions with a low density of naturally-occurring phase-coherent radar targets, e.g. vegetated nonurbanized areas. Third-party end-users of InSAR survey results cannot, in a systematic way, determine a priori whether these coherent targets have adequate spatial distribution to estimate the parameters of their interest. Additionally, InSAR
deformation estimates are referred to a local datum, meaning that the technique is sensitive only to the relative
deformation occurring within the SAR images. This makes it difficult to compare these estimates with those from other techniques, e.g. historical levelling data or changes in the sea level. Here we propose the design of a geodetic network for InSAR, aimed at densifying the naturally-occurring measurement network and converting from a local datum to a global one. A practical solution for improving spatial sampling is to deploy coherent target devices such as corner reflectors or transponders on
ground, tailored to the specific monitoring application under consideration. The proposed method (1) provides a generic description of any
deformation phenomenon; (2) determines whether the naturally-occurring InSAR measurements are adequate in terms of user-defined criteria; (3) finds the minimum number of additional devices to be deployed (if required); and (4) finds their optimal
ground locations. It digests, as inputs, any prior knowledge of the
deformation signal, the expected locations and quality of the existing coherent targets, and the quality of the deployed devices. The method is based on comparing different covariance matrices of the final parameters of interest with a criterion matrix (i.e., the ideal desired covariance matrix) using a predefined metric. The resulting measurement network is optimized with respect to precision, reliability and economic criteria; this is demonstrated via synthetic examples and a case of subsidence in the Netherlands. As a basis for the choice and number of deployed devices, we evaluate the measurement precision of compact active transponders and demonstrate their viability as alternatives to passive corner reflectors through three field experiments, using different satellite data and geodetic validation techniques. Transponders are shown to be usable for subcentimetre-precision geodetic applications, while improving upon the drawbacks of corner reflectors in terms of size, shape, weight and conspicuousness. For transforming the spatially-relative InSAR
deformation estimates (local datum) to a standard terrestrial reference frame (global datum), we introduce a new concept involving the collocation of transponders with Global Navigation Satellite System (GNSS) measurements. The displacement of such a transponder is consequently determined in the standard reference frame used by GNSS, eliminating the need for any assumptions on…
Advisors/Committee Members: Hanssen, R.F..
Subjects/Keywords: satellite radar interferometry; ground deformation; geodesy; network design; persistent scatterers; InSAR; transponder; corner reflector; precision; InSAR-GNSS collocation; datum connection
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APA (6th Edition):
Mahapatra, P. S. (2015). Geodetic network design for InSAR: Application to ground deformation monitoring. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6
Chicago Manual of Style (16th Edition):
Mahapatra, P S. “Geodetic network design for InSAR: Application to ground deformation monitoring.” 2015. Doctoral Dissertation, Delft University of Technology. Accessed January 24, 2021.
http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6.
MLA Handbook (7th Edition):
Mahapatra, P S. “Geodetic network design for InSAR: Application to ground deformation monitoring.” 2015. Web. 24 Jan 2021.
Vancouver:
Mahapatra PS. Geodetic network design for InSAR: Application to ground deformation monitoring. [Internet] [Doctoral dissertation]. Delft University of Technology; 2015. [cited 2021 Jan 24].
Available from: http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6.
Council of Science Editors:
Mahapatra PS. Geodetic network design for InSAR: Application to ground deformation monitoring. [Doctoral Dissertation]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; urn:NBN:nl:ui:24-uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6 ; http://resolver.tudelft.nl/uuid:8933e2d2-fa0f-42a2-90f1-ceb2795c75c6
23.
Παπαγεωργίου, Ελένη.
Μελέτη εδαφικής παραμόρφωσης στην εκτίμηση ηφαιστειακής επικινδυνότητας τη χρήσει διαστημικών και γεωφυσικών τεχνικών: η περίπτωση του ελληνικού ηφαιστειακού τόξου.
Degree: 2011, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)
URL: http://hdl.handle.net/10442/hedi/26334
► Η δημιουργία του Ελληνικού Ηφαιστειακού Τόξου (ΕΗΤ) στο Νότιο Αιγαίο, το οποίο εκτείνεται από την Κρομμυωνία, τα Μέθανα, την Αίγινα και τον Πόρο στα δυτικά,…
(more)
▼ Η δημιουργία του Ελληνικού Ηφαιστειακού Τόξου (ΕΗΤ) στο Νότιο Αιγαίο, το οποίο
εκτείνεται από την Κρομμυωνία, τα Μέθανα, την Αίγινα και τον Πόρο στα δυτικά, την
Μήλο και Σαντορίνη στα κεντρικά και την Νίσυρο και Δυτική Κω στα ανατολικά,
χρονολογείται στο τέλος του Κατώτερου Πλειόκαινου, και εντάσσεται στα πλαίσια του
ευρύτερου σχηματισμού του Ελληνικού Ορογενετικού Συστήματος, το οποίο αποτελεί την
πιο σημαντική ενεργή γεωλογική δομή της Μεσογείου. Τα τρία επί μέρους τμήματα του
ΕΗΤ που εξετάζονται στην παρούσα διατριβή, ήτοι το Δυτικό τμήμα με τα ηφαιστειακά
κέντρα των Μεθάνων και Αίγινας, το Κεντρικό τμήμα με την Μήλο και Σαντορίνη, και
τέλος το Ανατολικό τμήμα με την ευρύτερη περιοχή της Κω-Νισύρου, αποκαλύπτουν
διαφορετικά χαρακτηριστικά ηφαιστείων, έχουν αναπτύξει στο παρελθόν διαφορετικούς
ηφαιστειακούς μηχανισμούς, παρουσιάζουν διαφορετική τρέχουσα δράση και επομένως
χαρακτηρίζονται από διαφορετική ηφαιστειακή επικινδυνότητα. Τα ηφαιστειακά κέντρα
των Μεθάνων, της Σαντορίνης και της Νισύρου κατέγραψαν ιστορικές εκρήξεις και
θεωρούνται προσωρινώς αδρανή. Ωστόσο, η τελευταία ηφαιστειακή δράση στην
Σαντορίνη κατεγράφη το 1950, ενώ η Νίσυρος επέδειξε έντονη ατμιδική δραστηριότητα
και φρεατικές εκρήξεις έως το τέλος του 19ου αιώνα.
Κύριο σκοπό στην παρούσα έρευνα αποτέλεσε η εκτίμηση της Ηφαιστειακής
Επικινδυνότητας του ΕΗΤ, η οποία βασίσθηκε σε ένα μακροπρόθεσμο πρόγραμμα
παρακολούθησης των ηφαιστειακών κέντρων. Η ολοκληρωμένη εκτίμηση της
Ηφαιστειακής Επικινδυνότητας οφείλει να περιέχει πληροφορίες, τόσο για την εκρηκτική
συμπεριφορά που επέδειξαν τα ηφαιστειακά κέντρα στο παρελθόν, όσο και για την τωρινή
τους συμπεριφορά, μέσω της παρακολούθησης των πρόδρομων φαινομένων. Βασιζόμενοι
στα ανωτέρω, και λαμβάνοντας υπ’ όψιν παραμέτρους που αφορούν και τις δύο
κατηγορίες, ανεπτύχθη μία μεθοδολογία βαθμονόμησης της Ηφαιστειακής
Επικινδυνότητας συστηματική για όλο το ΕΗΤ. Μία τέτοια εργασία δύναται να συμβάλει ως
βάση για τον σχεδιασμό ενός συστήματος έγκαιρης προειδοποίησης. Για την υλοποίηση
της βαθμονόμησης διακρίθηκαν δύο κατηγορίες επικινδυνότητας, της Ιστορικής
Εκρηκτικότητας και της Σημερινής Ηφαιστειακής Δραστηριότητας, όπου σε κάθε κριτήριο
II
κάθε κατηγορίας, εδόθη μία συγκεκριμένη βαθμολογία (αναλυτική περιγραφή δίνεται
εκτενώς στο κείμενο). Με τον συνδυασμό των δύο κατηγοριών επετεύχθη η τελική
βαθμονόμηση της Ηφαιστειακής Επικινδυνότητας, η οποία ουσιαστικά εκφράζει ποσοτικά
τον σχετικό βαθμό επικινδυνότητας των επί μέρους ηφαιστειακών κέντρων.
Τα κριτήρια που επελέγησαν για την περίπτωση της Ιστορικής Εκρηκτικότητας
αναφέρονται σε γεγονότα επικινδυνότητας που προεκλίθησαν από τις ηφαιστειακές
εκρήξεις (πυροκλαστικές ροές, ροές λάβας, λαχάρ, τσουνάμι, υδροθερμική έκρηξη,
κατάρρευση, κλπ), στην συχνότητα των εκρήξεων, στον βαθμό εκρηκτικότητάς τους, αλλά
και στην χρονική τους εξέλιξη, με μεγαλύτερη βαρύτητα στην τελευταία έκρηξη.
Τα κριτήρια της Σημερινής Ηφαιστειακής Δραστηριότητας, τα οποία περιγράφουν
οποιαδήποτε αφύσικη γεωφυσική δραστηριότητα που επακολούθησε μετέπειτα της
τελευταίας εκρήξεως και εντός…
Subjects/Keywords: Εδαφική παραμόρφωση; Πεδίο ταχυτήτων; Ελληνικό ηφαιστειακό τόξο; Παγκόσμιο σύστημα εντοπισμού θέσης; Συμβολομετρία ραντάρ; Ηφαιστειακή δραστηριότητα; Τεκτονική; Ηφαιστειακή επικινδυνότητα; Ground deformation; Velocity field; Hellenic volcanic arc; Global positioning systems; SAR interferometry; Volcanic activity; Tectonics; Volcanic hazard
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APA (6th Edition):
Παπαγεωργίου, . . (2011). Μελέτη εδαφικής παραμόρφωσης στην εκτίμηση ηφαιστειακής επικινδυνότητας τη χρήσει διαστημικών και γεωφυσικών τεχνικών: η περίπτωση του ελληνικού ηφαιστειακού τόξου. (Thesis). National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Retrieved from http://hdl.handle.net/10442/hedi/26334
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Παπαγεωργίου, Ελένη. “Μελέτη εδαφικής παραμόρφωσης στην εκτίμηση ηφαιστειακής επικινδυνότητας τη χρήσει διαστημικών και γεωφυσικών τεχνικών: η περίπτωση του ελληνικού ηφαιστειακού τόξου.” 2011. Thesis, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Accessed January 24, 2021.
http://hdl.handle.net/10442/hedi/26334.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Παπαγεωργίου, Ελένη. “Μελέτη εδαφικής παραμόρφωσης στην εκτίμηση ηφαιστειακής επικινδυνότητας τη χρήσει διαστημικών και γεωφυσικών τεχνικών: η περίπτωση του ελληνικού ηφαιστειακού τόξου.” 2011. Web. 24 Jan 2021.
Vancouver:
Παπαγεωργίου . Μελέτη εδαφικής παραμόρφωσης στην εκτίμηση ηφαιστειακής επικινδυνότητας τη χρήσει διαστημικών και γεωφυσικών τεχνικών: η περίπτωση του ελληνικού ηφαιστειακού τόξου. [Internet] [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2011. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10442/hedi/26334.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Παπαγεωργίου . Μελέτη εδαφικής παραμόρφωσης στην εκτίμηση ηφαιστειακής επικινδυνότητας τη χρήσει διαστημικών και γεωφυσικών τεχνικών: η περίπτωση του ελληνικού ηφαιστειακού τόξου. [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2011. Available from: http://hdl.handle.net/10442/hedi/26334
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Texas – Austin
24.
Bonal, Nedra Danielle, 1975-.
Field experiments for fracture characterization: studies of seismic anisotropy and tracer imaging with GPR: Studies of seismic anisotropy and tracer imaging with GPR.
Degree: PhD, Geological Sciences, 2007, University of Texas – Austin
URL: http://hdl.handle.net/2152/3593
► Knowledge of fracture orientation and density is significant for reservoir and aquifer characterization. In this study, field experiments are designed to estimate fracture parameters in…
(more)
▼ Knowledge of fracture orientation and density is significant for reservoir and aquifer characterization. In this study, field experiments are designed to estimate fracture parameters in situ from seismic and GPR (radar) data. The seismic experiment estimates parameters of orientation, density, and filling material. The GPR experiment estimates channel flow geometry and aperture. In the seismic study, lines of 2D data are acquired in a vertically fractured limestone at three different azimuths to look for differences in seismic velocities. A sledgehammer, vertical source and a multicomponent, Vibroseis source are used with multicomponent receivers. Acquisition parameters of frequency, receiver spacing and source-to-receiver offset are varied. The entire suite of seismic body waves and Rayleigh waves is analyzed to characterize the subsurface. Alford rotations are used to determine fracture orientation and demonstrate good results when geophone orientation is taken into account. Results indicate that seismic anisotropy is caused by regional faulting. Average fracture density of less than 5% and water table depth estimates are consistent with field observations. Groundwater flow direction has been observed by others to cross the fault trend and is subparallel to a secondary fracture set. In this study, seismic anisotropy appears unrelated to this secondary fracture set. Vp/Vs and Poisson's ratio values indicate a dolomite lithology. Sledgehammer and Vibroseis data provide consistent results. In the GPR experiment, reflection profiles are acquired through common-offset profiling perpendicular to the dominant flow direction. High frequency waves are used to delineate fluid flow paths through a subhorizontal fracture and observe tracer channeling. Channeling of flow is expected to control solute transport. Changes in radar signal are quantitatively associated with changes in fracture filling material from an innovative method using correlation coefficients. Mapping these changes throughout the survey area reveals the geometry of the flow path of each injected liquid. The tracer is found to be concentrated in the center of the survey area where fracture apertures are large. This demonstrates that spatial variations in concentration are controlled by fluid channel geometry.
Advisors/Committee Members: Wilson, Clark R. (advisor).
Subjects/Keywords: Faults (Geology) – Texas – Austin Region; Rock deformation – Texas – Austin Region; Seismic waves – Speed; Anisotropy; Ground penetrating radar; Groundwater flow – Measurement
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APA ·
Chicago ·
MLA ·
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Manager
APA (6th Edition):
Bonal, Nedra Danielle, 1. (2007). Field experiments for fracture characterization: studies of seismic anisotropy and tracer imaging with GPR: Studies of seismic anisotropy and tracer imaging with GPR. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/3593
Chicago Manual of Style (16th Edition):
Bonal, Nedra Danielle, 1975-. “Field experiments for fracture characterization: studies of seismic anisotropy and tracer imaging with GPR: Studies of seismic anisotropy and tracer imaging with GPR.” 2007. Doctoral Dissertation, University of Texas – Austin. Accessed January 24, 2021.
http://hdl.handle.net/2152/3593.
MLA Handbook (7th Edition):
Bonal, Nedra Danielle, 1975-. “Field experiments for fracture characterization: studies of seismic anisotropy and tracer imaging with GPR: Studies of seismic anisotropy and tracer imaging with GPR.” 2007. Web. 24 Jan 2021.
Vancouver:
Bonal, Nedra Danielle 1. Field experiments for fracture characterization: studies of seismic anisotropy and tracer imaging with GPR: Studies of seismic anisotropy and tracer imaging with GPR. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2007. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/2152/3593.
Council of Science Editors:
Bonal, Nedra Danielle 1. Field experiments for fracture characterization: studies of seismic anisotropy and tracer imaging with GPR: Studies of seismic anisotropy and tracer imaging with GPR. [Doctoral Dissertation]. University of Texas – Austin; 2007. Available from: http://hdl.handle.net/2152/3593
University of Oulu
25.
Saarenketo, T. (Timo).
Electrical properties of road materials and subgrade soils and the use of Ground Penetrating Radar in traffic infrastructure surveys.
Degree: 2006, University of Oulu
URL: http://urn.fi/urn:isbn:9514282221
► Abstract This PhD thesis is composed of a synopsis and five published papers that are focused on both the research results of studies on electrical…
(more)
▼ Abstract
This PhD thesis is composed of a synopsis and five published papers that are focused on both the research results of studies on electrical properties of road materials and subgrade soils and their seasonal changes and the use of Ground Penetrating Radar technique in traffic infrastructure surveys. The data for this survey was collected mainly in Finland, Texas, Scotland and Sweden and thus presents many kinds of road materials, subgrade soils and climate conditions.
The synopsis of this work begins with a presentation of the theory and basic principles of GPR techniques. Special attention is given to the dielectric properties and seasonal changes of unbound road materials and subgrade soils. The synopsis also presents different kinds of GPR hardware systems as well as recommendations and experiences from different data collection, processing and interpretation techniques. Special attention is given to a method whereby GPR data is integrated with other road survey data and then analysed using a number of structural diagnostic methods. Finally, the synopsis provides an overview of of the various GPR applications on roads and streets, bridges, railways and airports.
The laboratory test results presented in this work show that the relationship between dielectric value and increasing water content is not linear or exponential but more likely a series of logarithmic functions. Laboratory results also showed that dielectric dispersion, which can be related to poorly performing subgrade soils and road aggregates, takes place mainly in loosely bound adsorption water and capillary water layer. As such these moisture sensitive problem materials can also be identified during the dry summer seasons when they are stiff. Dielectric value and electrical conductivity can also be related to other technical properties of road materials and subgrade soils such as frost susceptibility, shear strength, plastic limit, compaction degree and voids content. Laboratory tests and field data collected using the Percostation technique also demonstrate that a knowledge of seasonal changes and thermodynamics is very important in understanding and modelling the mechanical behaviour of road structures. Finally, laboratory and field tests indicate that colloids have an important role in the failure mechanism of the road materials.
This research demonstrates that the GPR technique not only gives valuable structural information on the different types of structures and subgrade soils but it provides a wide range of information of the electrical properties of the materials under survey which can be further related to their mechanical performance. The best information will be gained if GPR data is analysed together with other non destructive testing data collected form the roads, railways and airports.
Subjects/Keywords: Ground Penetrating Radar; airport; asphalt; bearing capacity; bridge; dielectric dispersion; dielectric value; electrical conductivity; freeze-thaw; pavement; percostation; permanent deformation; railway; road; road material; seasonal changes; soil
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APA ·
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APA (6th Edition):
Saarenketo, T. (. (2006). Electrical properties of road materials and subgrade soils and the use of Ground Penetrating Radar in traffic infrastructure surveys. (Doctoral Dissertation). University of Oulu. Retrieved from http://urn.fi/urn:isbn:9514282221
Chicago Manual of Style (16th Edition):
Saarenketo, T (Timo). “Electrical properties of road materials and subgrade soils and the use of Ground Penetrating Radar in traffic infrastructure surveys.” 2006. Doctoral Dissertation, University of Oulu. Accessed January 24, 2021.
http://urn.fi/urn:isbn:9514282221.
MLA Handbook (7th Edition):
Saarenketo, T (Timo). “Electrical properties of road materials and subgrade soils and the use of Ground Penetrating Radar in traffic infrastructure surveys.” 2006. Web. 24 Jan 2021.
Vancouver:
Saarenketo T(. Electrical properties of road materials and subgrade soils and the use of Ground Penetrating Radar in traffic infrastructure surveys. [Internet] [Doctoral dissertation]. University of Oulu; 2006. [cited 2021 Jan 24].
Available from: http://urn.fi/urn:isbn:9514282221.
Council of Science Editors:
Saarenketo T(. Electrical properties of road materials and subgrade soils and the use of Ground Penetrating Radar in traffic infrastructure surveys. [Doctoral Dissertation]. University of Oulu; 2006. Available from: http://urn.fi/urn:isbn:9514282221
26.
Pariya-Ekkasut, Chalermpat.
Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation.
Degree: PhD, Civil and Environmental Engineering, 2018, Cornell University
URL: http://hdl.handle.net/1813/59351
► This thesis addresses the performance of ductile iron (DI) pipelines with restrained axial slip joints subject to earthquake-induced ground deformation. DI pipelines account for 23%…
(more)
▼ This thesis addresses the performance of ductile iron (DI) pipelines with restrained axial slip joints
subject to earthquake-induced
ground deformation. DI pipelines account for 23% of U.S. water distribution systems (US.EPA, 2013), and have been used extensively for replacing aging cast iron (CI) pipelines. Under earthquake-induced
ground deformation a jointed DI pipeline is vulnerable primarily to joint pullout and excessive joint rotation. Improvements in pipeline technology have led to the development of DI pipelines with restrained axial slip joints that move axially and rotate to conform to differential soil movements, but are restrained from pullout without leakage and loss of structural integrity. A series of large-scale experiments was performed on DI pipelines with restrained axial slip joints to characterize tensile strength properties, direct axial compression and tension, moment vs rotation characteristics, soil axial restraint, and performance in response to fault rupture. Large-scale tests were performed primarily on 6-in. (150-mm)-diameter DI pipelines, but also included direct tension and bending tests on 12-in. (300-mm)-diameter DI pipelines. The direct compression tests show either leakage or irrecoverable
deformation in the form of large rotation at loads equal to or slightly higher than load consistent with the proportional limit stress of DI pipe. The direct tension tests show that tensile failure of the pipeline depends on the locking mechanism of the joint. Joints that use full circumferential locking rings generate the highest resisting force. Failure and leakage under tension with these features occurred as DI ring shear fracture and bell fracture. In contrast, joints that use locking segments mobilized lower pullout force. Failure and leakage of joints with locking segments occurred as local
deformation at the spigot caused by load concentration at the locking segments, allowing the weld bead to slip past the locking segments and cause leakage. Large-scale fault rupture tests provide a comprehensive and detailed understanding of the sequence of joint movements, combined axial pullout and rotation at each joint, and the actual axial forces influenced by longitudinal frictional resistance and axial resistance to movement at the joints. The longitudinal frictional forces are controlled by at-rest (Ko) conditions, which set the initial state of stress along the pipeline near the north and south ends of the split basin, and the conditions of maximum lateral soil reaction during fault rupture, which establish the maximum longitudinal frictional resistance for the pipeline in the vicinity of fault rupture. The joint axial resistance model proposed in this work is obtained from the expression for face resistance of the leading edge of a jacked pipe proposed by Meskele and Stuedlein (2015) from the work of Weber and Hurtz (1981). The model is used to predict the axial resistance from a restrained axial slip joint for DI pipe and the pullout restraints of PVCO and PVC pipelines. The…
Advisors/Committee Members: O'Rourke, Thomas Denis (chair), Stewart, Harry Eaton (committee member), Grigoriu, Mircea Dan (committee member).
Subjects/Keywords: Civil engineering; Ductile iron pipe; Fault rupture; Ground deformation; Jointed pipelines; Large-scale experiments; Water distribution systems
…accommodate permanent ground deformation by either ductile flexure or axial
deformation of the pipe… …the technology for improved response to
earthquake-induced ground deformation are various… …ground deformation. These products add substantially to the inventory of jointed DI
pipelines… …163
xxiv
CHAPTER 1
INTRODUCTION
1.1
Overview
Under earthquake-induced ground… …deformation a jointed pipeline is vulnerable
primarily to joint pullout, but also vulnerable to…
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APA (6th Edition):
Pariya-Ekkasut, C. (2018). Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/59351
Chicago Manual of Style (16th Edition):
Pariya-Ekkasut, Chalermpat. “Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation.” 2018. Doctoral Dissertation, Cornell University. Accessed January 24, 2021.
http://hdl.handle.net/1813/59351.
MLA Handbook (7th Edition):
Pariya-Ekkasut, Chalermpat. “Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation.” 2018. Web. 24 Jan 2021.
Vancouver:
Pariya-Ekkasut C. Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation. [Internet] [Doctoral dissertation]. Cornell University; 2018. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/1813/59351.
Council of Science Editors:
Pariya-Ekkasut C. Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation. [Doctoral Dissertation]. Cornell University; 2018. Available from: http://hdl.handle.net/1813/59351
Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)
27.
Μαυρίδης, Γεώργιος.
Συμβολή στη σεισμική ανάλυση και τον αντισεισμικό σχεδιασμό υπόγειων αγωγών.
Degree: 1995, Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)
URL: http://hdl.handle.net/10442/hedi/25352
Subjects/Keywords: Υπόγειοι αγωγοί; Αντισεισμική μηχανική; Αλληλεπίδραση εδάφους - κατασκευής; Μόνιμες παραμορφώσεις εδάφους; Lifelines; Pipelines; Earthquake engineering; Underground structures; Soil-structure-interaction effects; Permanent ground deformation
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APA (6th Edition):
Μαυρίδης, . . (1995). Συμβολή στη σεισμική ανάλυση και τον αντισεισμικό σχεδιασμό υπόγειων αγωγών. (Thesis). Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ). Retrieved from http://hdl.handle.net/10442/hedi/25352
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Μαυρίδης, Γεώργιος. “Συμβολή στη σεισμική ανάλυση και τον αντισεισμικό σχεδιασμό υπόγειων αγωγών.” 1995. Thesis, Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ). Accessed January 24, 2021.
http://hdl.handle.net/10442/hedi/25352.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Μαυρίδης, Γεώργιος. “Συμβολή στη σεισμική ανάλυση και τον αντισεισμικό σχεδιασμό υπόγειων αγωγών.” 1995. Web. 24 Jan 2021.
Vancouver:
Μαυρίδης . Συμβολή στη σεισμική ανάλυση και τον αντισεισμικό σχεδιασμό υπόγειων αγωγών. [Internet] [Thesis]. Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); 1995. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10442/hedi/25352.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Μαυρίδης . Συμβολή στη σεισμική ανάλυση και τον αντισεισμικό σχεδιασμό υπόγειων αγωγών. [Thesis]. Aristotle University Of Thessaloniki (AUTH); Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); 1995. Available from: http://hdl.handle.net/10442/hedi/25352
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
28.
Χουσιανίτης, Κωνσταντίνος.
Ιδιότητες σεισμικών πηγών και προσδιορισμός εδαφικής παραμόρφωσης ευρύτερης περιοχής Κεφαλληνίας - Ζακύνθου βάσει γεωφυσικών και διαστημικών μεθόδων.
Degree: 2009, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)
URL: http://hdl.handle.net/10442/hedi/26931
► Στην παρούσα διδακτορική διατριβή μελετήθηκε η τεκτονική συμπεριφορά των νήσων Κεφαλληνίας και Ζακύνθου με την συνδυαστική χρήση Διαστημικών Τεχνικών και Σεισμολογικής Έρευνας. Η χρήση των…
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▼ Στην παρούσα διδακτορική διατριβή μελετήθηκε η τεκτονική συμπεριφορά των νήσων Κεφαλληνίας και Ζακύνθου με την συνδυαστική χρήση Διαστημικών Τεχνικών και Σεισμολογικής Έρευνας. Η χρήση των διαστημικών εφαρμογών επικεντρώθηκε σε Διαφορικές μετρήσεις GPS για σημιειακή αλλά μεγάλης ακρίβειας (2-6 mm) παρατηρήσεις, σε συνδυασμό με Διαφορική Συμβολομετρία Ραντάρ για χωρική μελέτη της παραμόρφωσης. Επιπροσθέτως, η Σεισμολογική Έρευνα, με την χρήση μεθόδων υπολογισμού συνθετικών κυμάτων χώρου (P, SH και SV), συνέβαλε στον προσδιορισμό των σεισμικών παραμέτρων των ισχυρών σεισμών, ενώ η μικροσεισμική μελέτη βοήθησε στην ταύτιση των σεισμικών πηγών με τις ενεργές τεκτονικές ζώνες παραμόρφωσης της περιοχής. Τα αποτελέσματα της σεισμολογικής μελέτης συσχετίστηκαν και συνεκτιμήθηκαν με την μετρούμενη εδαφική παραμόρφωση από την χρήση των Διαστημικών Τεχνικών και η συνδυαστική τους αξιολόγηση οδήγησε σε ερμηνεία της εικόνας της παραμόρφωσης. Οι μετρήσεις GPS στην Κεφαλληνία πραγματοποιήθηκαν κατά την διάρκεια πέντε περιόδων, ενώ αυτές στη Ζάκυνθο υλοποιήθηκαν κατά τη διάρκεια δύο περιόδων. Για την Κεφαλληνία τα αποτελέσματα των μετρήσεων GPS από το 2001-2006 ανέδειξαν ανύσματα οριζόντιας μετατόπισης από 5-35mm ± 2mm. Από τις διευθύνσεις τους είναι φανερή η δεξιόστροφη περιστροφή της Κεφαλληνίας γύρω από έναν άξονα που διέρχεται από το σημείο 06, με τιμή 12,7 ± 5,5/Mgr. Αναφορικά με το κατακόρυφο άνυσμα, αξιοσημείωτη είναι η αλλαγή της φοράς της κίνησης από τον Σεπτέμβριο 2003 η οποία εκδηλώνεται πλέον με έντονη ανύψωση του δυτικού και νότιου τμήματος με μέγεθος έως και 60mm. Ως πιθανή ερμηνεία της ανύψωσης προσδόθηκε η έννοια της διασταλτικότητας. Αναφορικά με τη Ζάκυνθο, αναδείχθηκε συστηματικότητα στις διευθύνσεις των οριζόντιων ανυσμάτων στο νότιο τμήμα, όπου παρατηρήθηκε διεύρυνση του Κόλπου Λαγανά της τάξεως των 24mm στη διεύθυνση Α-Δ. Ταυτόχρονα το τμήμα αυτό της νήσου παρουσίασε έντονη ανύψωση (έως 70mm). Η εικόνα αυτή της εδαφικής ανύψωσης δύναται να αποδοθεί στη δράση της σεισμικής ακολουθίας Απριλίου 2006 σε μικρή απόσταση από τις νότιες ακτές της Ζακύνθου, η οποία προκλήθηκε από τη δράση δύο ανάστροφων αντιθετικών ρηγμάτων με διευθύνσεις ΒΒΔ-ΝΝΑ και ΒΔ-ΝΑ με κλίσεις ΝΔ και ΒΑ αντίστοιχα, τα οποία ανύψωσαν τον χώρο γύρω από τον Κόλπο Λαγανά.
Subjects/Keywords: Εδαφική παραμόρφωση; Μετρήσεις GPS; Συμβολομετρία; Ιόνια νησιά; Προσομοίωση κυματομορφών; Σεισμική ακολουθία; Ground deformation; GPS measurements; SAR interferometry; Ionian islands; Waveform modeling; Seismic sequences
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❌
APA ·
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MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Χουσιανίτης, . . (2009). Ιδιότητες σεισμικών πηγών και προσδιορισμός εδαφικής παραμόρφωσης ευρύτερης περιοχής Κεφαλληνίας - Ζακύνθου βάσει γεωφυσικών και διαστημικών μεθόδων. (Thesis). National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Retrieved from http://hdl.handle.net/10442/hedi/26931
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Χουσιανίτης, Κωνσταντίνος. “Ιδιότητες σεισμικών πηγών και προσδιορισμός εδαφικής παραμόρφωσης ευρύτερης περιοχής Κεφαλληνίας - Ζακύνθου βάσει γεωφυσικών και διαστημικών μεθόδων.” 2009. Thesis, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Accessed January 24, 2021.
http://hdl.handle.net/10442/hedi/26931.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Χουσιανίτης, Κωνσταντίνος. “Ιδιότητες σεισμικών πηγών και προσδιορισμός εδαφικής παραμόρφωσης ευρύτερης περιοχής Κεφαλληνίας - Ζακύνθου βάσει γεωφυσικών και διαστημικών μεθόδων.” 2009. Web. 24 Jan 2021.
Vancouver:
Χουσιανίτης . Ιδιότητες σεισμικών πηγών και προσδιορισμός εδαφικής παραμόρφωσης ευρύτερης περιοχής Κεφαλληνίας - Ζακύνθου βάσει γεωφυσικών και διαστημικών μεθόδων. [Internet] [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2009. [cited 2021 Jan 24].
Available from: http://hdl.handle.net/10442/hedi/26931.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Χουσιανίτης . Ιδιότητες σεισμικών πηγών και προσδιορισμός εδαφικής παραμόρφωσης ευρύτερης περιοχής Κεφαλληνίας - Ζακύνθου βάσει γεωφυσικών και διαστημικών μεθόδων. [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2009. Available from: http://hdl.handle.net/10442/hedi/26931
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Florida
30.
Love, Robert.
Analysis of Aeroelastic Flapping-Wing Signals for Micro Air-Vehicles.
Degree: MS, Aerospace Engineering - Mechanical and Aerospace Engineering, 2009, University of Florida
URL: https://ufdc.ufl.edu/UFE0024479
► Flapping-wing micro air-vehicles are being investigated for their potential to provide enhanced aerodynamic efficiency, maneuverability and gust tolerance. The flight dynamics of flapping-wing micro air-vehicles…
(more)
▼ Flapping-wing micro air-vehicles are being investigated for their potential to provide enhanced aerodynamic efficiency, maneuverability and gust tolerance. The flight dynamics of flapping-wing micro air-vehicles result from a complicated relationship between aerodynamics and structural dynamics. This relationship has both frequency-domain aspects and time-domain aspects that are each critical. As such, analyzing data from a flapping wing requires techniques that can process information related to both of these domains. This thesis introduces wavelet analysis as a tool to determine the frequency content of time-varying signals from a flapping wing testbed. Wavelet maps present a time-frequency domain representation that relates both time-domain and frequency-domain aspects. Data obtained with digital image correlation, including deflections and deformations while flapping and displacements under shaker excitation, is analyzed using wavelet processing from a set of wings with different structural dynamics and different flapping parameters. The resulting wavelet maps demonstrate the variations in energy content and temporal distribution associated with these signals. This thesis also examines wings of interest with a laser doppler vibrometer to obtain operating deflection shapes and their corresponding frequencies. These shapes and frequencies are compared to the results obtained using digital image correlation. The dynamics of a flapping-wing vehicle are inherently aeroservoelastic since the interaction of aerodynamics and structural dynamics are critical to performance and will be altered by any control effectors. Signals formed from deflections of a flapping wing using digital image correlation may provide a basis for an aeroservoelastic model of the flapping wing. This thesis generates a model of the aeroservoelastic dynamics for a wing as a function of the flapping frequency and flapping amplitude. These models are polynomial functions of each parameter and capture the nonlinear behavior. Most importantly, the resulting models are a basis from which to compute the wing deflections in response to any control command. ( en )
Advisors/Committee Members: Lind, Richard C. (committee chair), Ukeiley, Lawrence S. (committee member), Ifju, Peter (committee member).
Subjects/Keywords: Aircraft wings; Amplitude; Dynamic structural analysis; Fourier transformations; Polynomials; Signals; Structural deflection; Trailing edges; Velocity; Wavelet analysis; aerial, aeroelastic, aeroservoelastic, aerospace, analysis, correlation, deflection, deformation, dic, digital, doppler, dynamics, engineer, flapping, fourier, ground, gvt, image, laser, ldv, mav, modal, mode, model, ornithopter, processing, signal, testing, uav, unmanned, vehicle, vibration, vibrometer, wavelet, wing
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Record Details
Similar Records
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❌
APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Love, R. (2009). Analysis of Aeroelastic Flapping-Wing Signals for Micro Air-Vehicles. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0024479
Chicago Manual of Style (16th Edition):
Love, Robert. “Analysis of Aeroelastic Flapping-Wing Signals for Micro Air-Vehicles.” 2009. Masters Thesis, University of Florida. Accessed January 24, 2021.
https://ufdc.ufl.edu/UFE0024479.
MLA Handbook (7th Edition):
Love, Robert. “Analysis of Aeroelastic Flapping-Wing Signals for Micro Air-Vehicles.” 2009. Web. 24 Jan 2021.
Vancouver:
Love R. Analysis of Aeroelastic Flapping-Wing Signals for Micro Air-Vehicles. [Internet] [Masters thesis]. University of Florida; 2009. [cited 2021 Jan 24].
Available from: https://ufdc.ufl.edu/UFE0024479.
Council of Science Editors:
Love R. Analysis of Aeroelastic Flapping-Wing Signals for Micro Air-Vehicles. [Masters Thesis]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0024479
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Open Access Theses and Dissertations
