+publisher:"University of Saskatchewan" +contributor:("Elshorbagy, Amin A.")

University of Saskatchewan

1. Wheeler, Keaton. MITIGATION OF SYNCHRONOUS MACHINE BASED DISTRIBUTED GENERATION INFLUENCES ON FUSE-RECLOSER PROTECTION SYSTEMS IN RADIAL DISTRIBUTION NETWORKS USING SUPERCONDUCTING FAULT CURRENT LIMITERS.

Degree: 2015, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2015-02-1954

► Distributed generation (DG) is increasingly employed in modern utility grids to address the growing complexity and size of consumer energy demands. The obstacles associated with… (more)

Subjects/Keywords: Distributed Generation; Protection Coordination; Fault Current Limiter

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APA (6^th Edition):

Wheeler, K. (2015). MITIGATION OF SYNCHRONOUS MACHINE BASED DISTRIBUTED GENERATION INFLUENCES ON FUSE-RECLOSER PROTECTION SYSTEMS IN RADIAL DISTRIBUTION NETWORKS USING SUPERCONDUCTING FAULT CURRENT LIMITERS. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2015-02-1954

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wheeler, Keaton. “MITIGATION OF SYNCHRONOUS MACHINE BASED DISTRIBUTED GENERATION INFLUENCES ON FUSE-RECLOSER PROTECTION SYSTEMS IN RADIAL DISTRIBUTION NETWORKS USING SUPERCONDUCTING FAULT CURRENT LIMITERS.” 2015. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/ETD-2015-02-1954.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wheeler, Keaton. “MITIGATION OF SYNCHRONOUS MACHINE BASED DISTRIBUTED GENERATION INFLUENCES ON FUSE-RECLOSER PROTECTION SYSTEMS IN RADIAL DISTRIBUTION NETWORKS USING SUPERCONDUCTING FAULT CURRENT LIMITERS.” 2015. Web. 04 Mar 2021.

Vancouver:

Wheeler K. MITIGATION OF SYNCHRONOUS MACHINE BASED DISTRIBUTED GENERATION INFLUENCES ON FUSE-RECLOSER PROTECTION SYSTEMS IN RADIAL DISTRIBUTION NETWORKS USING SUPERCONDUCTING FAULT CURRENT LIMITERS. [Internet] [Thesis]. University of Saskatchewan; 2015. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/ETD-2015-02-1954.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wheeler K. MITIGATION OF SYNCHRONOUS MACHINE BASED DISTRIBUTED GENERATION INFLUENCES ON FUSE-RECLOSER PROTECTION SYSTEMS IN RADIAL DISTRIBUTION NETWORKS USING SUPERCONDUCTING FAULT CURRENT LIMITERS. [Thesis]. University of Saskatchewan; 2015. Available from: http://hdl.handle.net/10388/ETD-2015-02-1954

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

2. Zettl, Julie. Infiltration and Drainage through Coarse Layered Soil: A Study of Natural and Reclaimed Soil Profiles in the Oil Sands Region, Alberta, Canada.

Degree: 2014, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2014-04-1487

► Natural coarse textured soils comprise a significant portion (approximately 20%) of the area to be mined at Suncor, Syncrude (aurora mine), Albian/Shell, and CNRL mines… (more)

▼ Natural coarse textured soils comprise a significant portion (approximately 20%) of the area to be mined at Suncor, Syncrude (aurora mine), Albian/Shell, and CNRL mines in the Alberta’s oil sands (Macyk, 2006). Although similar in soil textural classifications, the undisturbed areas support a range of ecosite types which exhibit different moisture regimes, suggesting that there are natural mechanisms controlling the plant available water sufficient for forest development. The global objective of this study was to evaluate the potential for textural variability to enhance water storage in coarse textured soil. The observations of the infiltration and drainage behaviour of natural and reclaimed coarse-texture soils in this study have demonstrated that this potential exists and can be applied in reclamation design to achieve the ranges of soil water storage needed to establish different ecosites. Field based infiltration and drainage testing, pit excavation and sampling have been completed on 14 sites (7 natural and 7 reclaimed). Bulk saturated hydraulic conductivity and field capacity were estimated for each of the 14 sites based on the field test results. The observed transient water dynamics give an indication of the effect of layering on these material properties. Laboratory analysis of water content (650 samples), particle size (650 samples), water retention (35 samples), organic carbon (100 samples) as well as calibration of field instrumentation were completed on a large number of samples (approximate values shown in brackets above) across all sites. The laboratory analysis was used to characterize textural variability (mean and standard deviation of the particle diameter) for the layered sites and estimate the soil water retention curve (SWRC) relationships for the range of soil textures encountered at the study sites. Pedotransfer functions (PTFs) were used to investigate if there were significant differences in the residual sum of squares between estimated and measured SWRCs. The measured organic carbon was used to aid in estimating permanent wilting point (WP) used in the calculation of the available water holding capacity (AWHC) of all profiles. An investigation into the calibration of the moisture capacitance probe (MCP) was undertaken as part of a comparison of the measured and simulated volumetric water content (VWC) profiles. Water storage at the cessation of drainage was related to the soil texture and textural variability as measured in the laboratory. Sites with more textural variability generally stored more water for plant use. There appeared to be a limit to what can be considered ‘useful’ textural variability. If adjacent soil layers had too extreme a contrast in texture and therefore hydraulic conductivity, unstable/preferential flow (i.e. bypassing of some of the water and nutrients from plant roots) occurred. The total porosity calculated from field samples was often higher than the maximum measured VWC in each layer which may be indicative of one or more factors that… Advisors/Committee Members: Barbour, Sidney L., Si, Bing C., Elshorbagy, Amin A..

Subjects/Keywords: coarse soil; layered soil; reclaimed soil; infiltration; drainage; water storage; available water holding capacity; soil water retention curve; 1-D numerical modelling

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APA (6^th Edition):

Zettl, J. (2014). Infiltration and Drainage through Coarse Layered Soil: A Study of Natural and Reclaimed Soil Profiles in the Oil Sands Region, Alberta, Canada. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2014-04-1487

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zettl, Julie. “Infiltration and Drainage through Coarse Layered Soil: A Study of Natural and Reclaimed Soil Profiles in the Oil Sands Region, Alberta, Canada.” 2014. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/ETD-2014-04-1487.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zettl, Julie. “Infiltration and Drainage through Coarse Layered Soil: A Study of Natural and Reclaimed Soil Profiles in the Oil Sands Region, Alberta, Canada.” 2014. Web. 04 Mar 2021.

Vancouver:

Zettl J. Infiltration and Drainage through Coarse Layered Soil: A Study of Natural and Reclaimed Soil Profiles in the Oil Sands Region, Alberta, Canada. [Internet] [Thesis]. University of Saskatchewan; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/ETD-2014-04-1487.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zettl J. Infiltration and Drainage through Coarse Layered Soil: A Study of Natural and Reclaimed Soil Profiles in the Oil Sands Region, Alberta, Canada. [Thesis]. University of Saskatchewan; 2014. Available from: http://hdl.handle.net/10388/ETD-2014-04-1487

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

3. Flores, Mariniel. Development of a Municipal-Level Strategic Highway Safety Plan: Case Study for the City of Saskatoon.

Degree: 2014, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2014-04-1581

► There have been many documents published that set strategic goals for the future, including transportation-related goals. However, few documents focus heavily on a specific approach… (more)

▼ There have been many documents published that set strategic goals for the future, including transportation-related goals. However, few documents focus heavily on a specific approach to improve transportation safety. Therefore, a supporting policy document focused on transportation safety is required to ensure that the transportation system runs safely and efficiently; a Strategic Highway Safety Plan (SHSP) serves as that document. A SHSP is a high-level traffic safety policy that represents a scientific, data-driven, four to five year comprehensive safety document that is designed to identify a jurisdiction’s emphasis areas (i.e., key areas of safety concern) and target safety goals [i.e., collision reduction goal(s)], and may also include network screening (i.e., identification of high collision locations) and safety strategies/programs for each chosen emphasis area. There are, however, limited documents that discuss the procedure for the development of a SHSP specifically for a municipality. Therefore, the goal of this research was to improve traffic safety by reducing the number and severity of collisions in municipalities across Canada. The objective for this research was to develop a data-driven and more scientific municipal-level SHSP development process (i.e., procedure and key components) that may be used to improve traffic safety for municipalities across Canada. Existing procedures, key components and approaches to develop the key components in existing SHSPs published mainly in North America were reviewed. The literature review (FHWA, 2006; CCMTA, 2011b) suggested that the typical procedure for the development of a SHSP is identifying a “champion” (i.e., an individual or unit with high-level leadership), developing a vision, identifying key stakeholders, developing the key components (i.e., selecting the key emphasis areas, establishing target safety goals, selecting the strategies/programs for the chosen key emphasis areas), and updating and evaluating the SHSP. The existing procedures and key components were adjusted to create the modified process. The modified process consisted of two additional steps to the procedure: 1) Incorporating Upper-Level Policies and 2) Conducting Network Screening. The modified process also outlined the most appropriate approaches to use to develop the key components of a municipal-level SHSP. The modified process (i.e., procedure and key components) was applied to develop a municipal-level SHSP for the City of Saskatoon through a case study to compare the results to the existing process. Saskatoon’s SHSP included seven emphasis areas for a definite period of time (i.e., for the next five years). Target safety goals, network screening and strategies/programs were also developed, but only for the selected emphasis areas. Recent ten-year (2001-2010) collision data from the SGI was used to select emphasis areas, develop target safety goals and conduct network screening. Based on the case study results, upper-level policies should be incorporated in the development of the key… Advisors/Committee Members: Park, Peter Y., Berthelot, Curtis, Sparks, Gordon A., Akkerman, Avi, Elshorbagy, Amin A..

Subjects/Keywords: Strategic Highway Safety Plan; Emphasis Areas; Target Safety Goals; Network Screening; Safety Strategies/Programs

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APA (6^th Edition):

Flores, M. (2014). Development of a Municipal-Level Strategic Highway Safety Plan: Case Study for the City of Saskatoon. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2014-04-1581

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Flores, Mariniel. “Development of a Municipal-Level Strategic Highway Safety Plan: Case Study for the City of Saskatoon.” 2014. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/ETD-2014-04-1581.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Flores, Mariniel. “Development of a Municipal-Level Strategic Highway Safety Plan: Case Study for the City of Saskatoon.” 2014. Web. 04 Mar 2021.

Vancouver:

Flores M. Development of a Municipal-Level Strategic Highway Safety Plan: Case Study for the City of Saskatoon. [Internet] [Thesis]. University of Saskatchewan; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/ETD-2014-04-1581.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Flores M. Development of a Municipal-Level Strategic Highway Safety Plan: Case Study for the City of Saskatoon. [Thesis]. University of Saskatchewan; 2014. Available from: http://hdl.handle.net/10388/ETD-2014-04-1581

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Fenske, Dana. A study to evaluate the performance of reclamation soil covers placed over an oil sands fluid coke deposit.

Degree: 2011, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2011-10-342

► Coke, a by-product of petroleum extraction from oil sands, is considered a potential energy source and must be stored within the reclaimed landscape in a… (more)

▼ Coke, a by-product of petroleum extraction from oil sands, is considered a potential energy source and must be stored within the reclaimed landscape in a manner that allows it to be recovered in the future. Syncrude Canada constructed two instrumented watersheds at the Mildred Lake Settling Basin (tailings management facility) to study the effects of coke in the environment. The watersheds consisted of a “shallow” and a “deep” cover system with nominal thicknesses of 35cm and 100cm, overlying an approximate 5 m thick coke deposit. The two reclamation soil covers were constructed using peat-mineral mix placed over secondary (glacial till). The global objective of this research program was to evaluate the preliminary performance for each of the soil covers with respect to the available water holding capacity (AWHC). The specific objectives were to: a) install additional instrumentation to supplement the existing instrumented watersheds; b) characterize the properties of the covers on each watershed; and c) develop a preliminary, one-dimensional water balance for each watershed. Existing instrumentation on each cover (installed by others) included: a meteorological station; automated soil stations to monitor suction, water content and temperature; and, lysimeters to collect net percolation. Additional instrumentation was installed during this research program to track vertical and horizontal variations in soil conditions and included: access tubes for monitoring water content; temperature sensors; gas sampling points; and, standpipe piezometers to determine depth to the water table. The instrumentation generally performed well, with the exception of the lysimeters which did not appear to measure net percolation accurately. Through the measurement of soil parameters, interpretation of field monitoring data and laboratory testing, the covers were characterized for their relative ability to store water for plant growth. A water balance was determined for each watershed. Evaluation of the covers indicated that neither the deep nor the shallow covers were successful at storing sufficient water necessary for plant growth under dry conditions. However, the deep cover performed better than the shallow cover based on the overall cover performance, likely due to its higher AWHC. Advisors/Committee Members: Barbour, S. Lee, Hendry, M. Jim, Elshorbagy, Amin A., Hawkes, Christopher D., Feldman, Lisa.

Subjects/Keywords: oil sands; reclamation: cover trials

…time domain reflectometry University of Saskatchewan Unified Soil Classification System…

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APA (6^th Edition):

Fenske, D. (2011). A study to evaluate the performance of reclamation soil covers placed over an oil sands fluid coke deposit. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2011-10-342

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Fenske, Dana. “A study to evaluate the performance of reclamation soil covers placed over an oil sands fluid coke deposit.” 2011. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/ETD-2011-10-342.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Fenske, Dana. “A study to evaluate the performance of reclamation soil covers placed over an oil sands fluid coke deposit.” 2011. Web. 04 Mar 2021.

Vancouver:

Fenske D. A study to evaluate the performance of reclamation soil covers placed over an oil sands fluid coke deposit. [Internet] [Thesis]. University of Saskatchewan; 2011. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/ETD-2011-10-342.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fenske D. A study to evaluate the performance of reclamation soil covers placed over an oil sands fluid coke deposit. [Thesis]. University of Saskatchewan; 2011. Available from: http://hdl.handle.net/10388/ETD-2011-10-342

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

5. Karki, Rajendra. Effects of deep excavations on circular tunnels in fine-grained soils.

Degree: 2006, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-05302006-151252

► This thesis presents a study of the effects of deep excavations on adjacent metro or utility tunnel in soft to medium soil. The main objective… (more)

▼ This thesis presents a study of the effects of deep excavations on adjacent metro or utility tunnel in soft to medium soil. The main objective of the thesis is to develop a method of estimating these effects quantitatively. Extensive review of relevant literature published in the past four decades was conducted in order to understand the trends and the key developments in this area. It was revealed from the literature review that the concurrent use of the Observational Method and the finite element method for monitoring and controlling of ground deformations around the excavation has become a norm for deep excavation projects. Several design charts and guidelines for estimation of effects of deep excavations on adjacent raft foundations or pile foundations were found in the literature; however, no such charts or guidelines were found for estimation of effects of deep excavations on existing circular tunnels. Consequently, the development of these guidelines was established as one of the objectives of this study. The initial phase of the research was focused on detailed study and analysis of two well-documented case studies – the Chicago Subway Renovation Project, USA and the Tan Tock Seng Hospital Deep Excavation, Singapore. The back analyses of these two case studies were carried out using the finite element software PLAXIS. Exact site conditions and input parameters for the soil and the structural components were incorporated as much as possible. Appropriate adjustments in some of the input parameters were necessary to achieve good match between the computed and the observed results. The back analyses were followed by parametric studies to identify important variables controlling the mechanisms of soil-structure interaction. The variables identified from the parametric studies of the two case studies were: soil stiffness, tunnel lining thickness, the depth of the excavation, and the location of tunnel. These variables were used to conduct a series of finite element analyses using simplified geometry and ground conditions for the purpose of formulating preliminary design charts. Results from these analyses were recorded in terms of in-plane and out-of-plane distortion of tunnel lining as well as additional shear forces and bending moments induced in the tunnel lining due to an adjacent deep excavation. The results were made non-dimensional before presenting them as contour plots. These contour plots constitute preliminary design charts, which can be used for the estimation of tunnel lining deformation caused by adjacent deep excavation. Based on the results of this study, it can be concluded that a finite element program (such as PLAXIS) that is able to model construction processes associated with tunnelling and deep excavation in urban environment can be an invaluable tool in exploring the mechanism of ground deformation around the deep excavation and in quantifying the effects of ground deformation on existing adjacent structures. The modeller must, however, be aware of the fact that ways of modelling a… Advisors/Committee Members: Sharma, Jitendra, Samarasekera, Lal, Hawkes, Christopher D., Elshorbagy, Amin A..

Subjects/Keywords: parametric study; design charts; finite element method; circular tunnel; Deep excavation; soil-structure interaction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Karki, R. (2006). Effects of deep excavations on circular tunnels in fine-grained soils. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-05302006-151252

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Karki, Rajendra. “Effects of deep excavations on circular tunnels in fine-grained soils.” 2006. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-05302006-151252.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Karki, Rajendra. “Effects of deep excavations on circular tunnels in fine-grained soils.” 2006. Web. 04 Mar 2021.

Vancouver:

Karki R. Effects of deep excavations on circular tunnels in fine-grained soils. [Internet] [Thesis]. University of Saskatchewan; 2006. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-05302006-151252.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Karki R. Effects of deep excavations on circular tunnels in fine-grained soils. [Thesis]. University of Saskatchewan; 2006. Available from: http://hdl.handle.net/10388/etd-05302006-151252

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

6. McLeod, Shaun M. Characterization of the urban runoff from the city of Saskatoon to the South Saskatchewan river.

Degree: 2007, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-01312007-082351

► A major upgrade to the wastewater treatment plant in Saskatoon, Canada significantly improved the final effluent quality. Consequently, the relative impact of the city’s urban… (more)

▼ A major upgrade to the wastewater treatment plant in Saskatoon, Canada significantly improved the final effluent quality. Consequently, the relative impact of the city’s urban runoff on the receiving stream, the South Saskatchewan River, has increased. Moreover, at the inception of the study, pending amendments to provincial legislation governing urban runoff were such that urban runoff would no longer be automatically exempt from regulation. In response to this impending change, which has since been made, Saskatchewan Environment initiated a study to examine the water quality of the urban runoff in Saskatoon, because little had been done to date involving the water quality of urban runoff in Saskatchewan.The field program was conducted in 2001 and 2002 to collect representative urban runoff water quality and flow rate data from four different land uses: newer residential, older residential, commercial, and industrial. Three characterizations of the water quality were developed on the basis of the data collected: Site Mean Concentration (SMC), multiple variable regression models, and the unit load. The SMC results indicate that the average water quality parameter concentrations in Saskatoon are greater than those from NURP, the updated U.S. nationwide urban runoff database, and from Vancouver, Canada, but are similar to those from Wisconsin. The regression analyses indicate that the rainfall depth is the most frequently significant parameter in the prediction of event loads. The unit load analyses indicate that the commercial catchment produces the most pollutant load per unit area. Comparison of the methods indicates that the SMC can be used to estimate longer term urban runoff loads, in lieu of the more complex regression method.Heavy metals, pesticides, and fecal coliforms were detected in the urban runoff at concentrations that exceed guideline values. Further investigation is recommended.In comparison to the loads discharged by local point sources, urban runoff contributes larger total suspended solids (TSS) and total Kjeldahl nitrogen (TKN) loads to the South Saskatchewan River. The load of COD to the river is comparable to that of the Saskatoon Wastewater Treatment Plant (WWTP). The total phosphorus load contributed by urban runoff is slightly smaller than that of the WWTP. Considering the relative load of TSS from urban runoff to the WWTP and the potential for other, more toxic pollutants to adsorb to the TSS, sediment controls should be implemented at all levels of development. Further examination of urban runoff with specific emphasis on spring and winter runoff is recommended. Advisors/Committee Members: Kells, James A., Putz, Gordon, Peng, Jian, Mazurek, Kerry, Elshorbagy, Amin A., Pietroniro, Alain.

Subjects/Keywords: land use; unit load; regression; event mean concentration; site mean concentration; water pollution; storm sewers

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APA (6^th Edition):

McLeod, S. M. (2007). Characterization of the urban runoff from the city of Saskatoon to the South Saskatchewan river. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-01312007-082351

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

McLeod, Shaun M. “Characterization of the urban runoff from the city of Saskatoon to the South Saskatchewan river.” 2007. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-01312007-082351.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

McLeod, Shaun M. “Characterization of the urban runoff from the city of Saskatoon to the South Saskatchewan river.” 2007. Web. 04 Mar 2021.

Vancouver:

McLeod SM. Characterization of the urban runoff from the city of Saskatoon to the South Saskatchewan river. [Internet] [Thesis]. University of Saskatchewan; 2007. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-01312007-082351.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

McLeod SM. Characterization of the urban runoff from the city of Saskatoon to the South Saskatchewan river. [Thesis]. University of Saskatchewan; 2007. Available from: http://hdl.handle.net/10388/etd-01312007-082351

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

7. Bachu, Lakshminarayanarao. A comparative analysis of the hydrological performance of reconstructed and natural watersheds.

Degree: 2008, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-09032008-150055

► An example of watershed disturbance activity undertaken to gain access to the oil sands is large scale mining in the Athabasca basin, Alberta, Canada. One… (more)

▼ An example of watershed disturbance activity undertaken to gain access to the oil sands is large scale mining in the Athabasca basin, Alberta, Canada. One of the remedial activities of this disturbance is the reclamation of the disturbed lands. In the process of reclamation, the overburden soil is placed back into the mined pits and reformed with soil covers (alternatively called reconstructed watersheds). In the design process of reclamation, a major concern is hydrological sustainability, which includes the soil’s ability to store enough moisture for the water requirements of vegetation growth and land-atmospheric moisture fluxes. Typically, the goal of the reclamation is to restore the disturbed watersheds, so that they mimic the natural watersheds in terms of the ecological sustainability. Therefore, a comparative evaluation of the hydrological sustainability of the reconstructed watersheds with natural watersheds is required.The considered reconstructed watershed in this study (the flat top of the South Bison Hill, Fort McMurray, Alberta, which is about 6 years old) constitutes a thin layer of a peat-mineral mix (20 cm thick) overlying an 80 cm thick secondary (glacial till) layer on the shale formation, mimicking the natural soil horizons of undisturbed watersheds. As the reconstructed watershed is located in the boreal forest region, a mature boreal forest (Old Aspen site, about 88 years old) located in the Southern Study Area (SSA), BOREAS, Saskatchewan, Canada, is considered as a representative of natural watershed. The A-horizon with 25 cm of sandy loam texture, the B-horizon with 45 cm-thick sandy clay loam, and the C-horizon with 40 cm of a mixture of sandy clay loam and loam are considered in this study.An existing System Dynamics Watershed (SDW) model (lumped and site-specific) is modified and adapted to model the hydrological processes of the reconstructed and natural watersheds, such as soil moisture, evapotranspiration, and runoff. The models are calibrated and validated on daily time scale using two years data (growing season) in each case. The hydrological processes are simulated reasonably well despite the high complexity involved in the processes of soil moisture dynamics and the evapotranspiration, for both study areas. Using the modified and calibrated models, long term simulations (48 years) are carried out on both the reconstructed and natural watersheds. Vegetation properties are switched between the reconstructed and natural watersheds and two scenarios are generated. Consequently, long term simulations are performed. With the help of a probabilistic approach, the daily soil moisture results are used to address the comparative soil moisture storage capability of the watersheds.The results indicate that the selected reconstructed watershed is able to provide its designed store-and-release moisture of 160 mm (a requirement of the land capability classification for forest ecosystems in the oil sands) for the vegetation and meteorological moisture demands at a non-exceedance… Advisors/Committee Members: Elshorbagy, Amin A., Sharma, Jitendra, Guangul, Seifu, Barbour, S. Lee, Shook, Kevin.

Subjects/Keywords: Natural Watersheds; Reconstructed watersheds; Boreal Forests; Statistical Analysis; Hydrological Modeling; System Dynamics Approach

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APA (6^th Edition):

Bachu, L. (2008). A comparative analysis of the hydrological performance of reconstructed and natural watersheds. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-09032008-150055

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bachu, Lakshminarayanarao. “A comparative analysis of the hydrological performance of reconstructed and natural watersheds.” 2008. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-09032008-150055.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bachu, Lakshminarayanarao. “A comparative analysis of the hydrological performance of reconstructed and natural watersheds.” 2008. Web. 04 Mar 2021.

Vancouver:

Bachu L. A comparative analysis of the hydrological performance of reconstructed and natural watersheds. [Internet] [Thesis]. University of Saskatchewan; 2008. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-09032008-150055.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bachu L. A comparative analysis of the hydrological performance of reconstructed and natural watersheds. [Thesis]. University of Saskatchewan; 2008. Available from: http://hdl.handle.net/10388/etd-09032008-150055

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

8. Huang, Bing Quan. Effect of subglacial shear on geomechanical properties of glaciated soils.

Degree: 2005, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-06082005-145640

► Continental glaciers covered as much as thirty percent of the present-day inhabited earth during the Quaternary period. Traditionally, one-dimensional consolidation has been considered as the… (more)

▼ Continental glaciers covered as much as thirty percent of the present-day inhabited earth during the Quaternary period. Traditionally, one-dimensional consolidation has been considered as the main process of formation for the soils deposited during glaciation. One of the outcomes of accepting one-dimensional consolidation as the main process of formation is that the geomechanical properties of soil in a horizontal plane are isotropic (known as cross-anisotropy). Recent measurements of subglacial pore pressure and preconsolidation pressure profile have indicated that this might not be the case. The role of subglacial shear action has probably been long neglected. The main objective of this research is to investigate the effects of subglacial shearing on the geomechanical properties of glaciated soils. Recent research has found evidence of horizontal property anisotropy associated with the direction of the ice-sheet movement. A testing program was thus proposed to explore the relationship between the anisotropy of property and the direction of past glacier movement. The program involves several fundamental engineering parameters of soils. These parameters together with the corresponding test methods are as follows: (i) Conventional oedometer test – yield stress anisotropy; (ii) Oedometer test with lateral stress measurement – stiffness anisotropy; (iii) Load cell pressuremeter (LCPM) test – in situ stress anisotropy. The physical meaning of yield stress determined by conventional oedometer tests was interpreted as the critical state of structural collapse. The literature review and an experimental study on kaolin samples with a known stress history suggested that yield stress possesses certain dependency on the sampling direction. The anisotropy of yield stress for Battleford till from Birsay, Saskatchewan was also explored by testing directional oedometer samples. In addition, the anisotropy of stiffness was also investigated using a newly developed lateral stress oedometer that is capable of independent measurement of horizontal stresses at three different points with angles of 120 degrees. Preliminary evidence of a correlation between the direction of maximum stiffness in a horizontal plane and the known direction of glacial shear was observed. The correlation between the direction of maximum yield stress and known direction of glaciation was rather poor. Anisotropy of in situ stresses was investigated by conducting LCPM tests in Pot clay in the Netherlands. Based on the LCPM test results, it was concluded that the evidence of a correlation between the anisotropy of in situ stress and known direction of glacial advance is still rather obscure. Although both the laboratory studies and field studies cannot sufficiently confirm the existence of lateral anisotropy of geomechanical properties and its relationship to the direction of the Quaternary ice-sheet movement, the effects of subglacial shearing should not be neglected in assessing the geotechnical properties of glaciated soils. In practice, it is usually found… Advisors/Committee Members: Sharma, Jitendra, Pufahl, Dennis E., Elshorbagy, Amin A., Dolovich, Allan T., Barbour, S. Lee, Antunes, Jorge.

Subjects/Keywords: stiffness; preconsolidation pressure; critical state; consolidation; load cell pressuremeter; lateral stress oedometer; in situ stresses; anisotropy; Glaciated Soils

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Huang, B. Q. (2005). Effect of subglacial shear on geomechanical properties of glaciated soils. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-06082005-145640

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Huang, Bing Quan. “Effect of subglacial shear on geomechanical properties of glaciated soils.” 2005. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-06082005-145640.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Huang, Bing Quan. “Effect of subglacial shear on geomechanical properties of glaciated soils.” 2005. Web. 04 Mar 2021.

Vancouver:

Huang BQ. Effect of subglacial shear on geomechanical properties of glaciated soils. [Internet] [Thesis]. University of Saskatchewan; 2005. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-06082005-145640.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Huang BQ. Effect of subglacial shear on geomechanical properties of glaciated soils. [Thesis]. University of Saskatchewan; 2005. Available from: http://hdl.handle.net/10388/etd-06082005-145640

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

9. Parasuraman, Kamban. Hydrologic prediction using pattern recognition and soft-computing techniques.

Degree: 2007, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-08172007-165636

► Several studies indicate that the data-driven models have proven to be potentially useful tools in hydrological modeling. Nevertheless, it is a common perception among researchers… (more)

▼ Several studies indicate that the data-driven models have proven to be potentially useful tools in hydrological modeling. Nevertheless, it is a common perception among researchers and practitioners that the usefulness of the system theoretic models is limited to forecast applications, and they cannot be used as a tool for scientific investigations. Also, the system-theoretic models are believed to be less reliable as they characterize the hydrological processes by learning the input-output patterns embedded in the dataset and not based on strong physical understanding of the system. It is imperative that the above concerns needs to be addressed before the data-driven models can gain wider acceptability by researchers and practitioners.In this research different methods and tools that can be adopted to promote transparency in the data-driven models are probed with the objective of extending the usefulness of data-driven models beyond forecast applications as a tools for scientific investigations, by providing additional insights into the underlying input-output patterns based on which the data-driven models arrive at a decision. In this regard, the utility of self-organizing networks (competitive learning and self-organizing maps) in learning the patterns in the input space is evaluated by developing a novel neural network model called the spiking modular neural networks (SMNNs). The performance of the SMNNs is evaluated based on its ability to characterize streamflows and actual evapotranspiration process. Also the utility of self-organizing algorithms, namely genetic programming (GP), is evaluated with regards to its ability to promote transparency in data-driven models. The robustness of the GP to evolve its own model structure with relevant parameters is illustrated by applying GP to characterize the actual-evapotranspiration process. The results from this research indicate that self-organization in learning, both in terms of self-organizing networks and self-organizing algorithms, could be adopted to promote transparency in data-driven models.In pursuit of improving the reliability of the data-driven models, different methods for incorporating uncertainty estimates as part of the data-driven model building exercise is evaluated in this research. The local-scale models are shown to be more reliable than the global-scale models in characterizing the saturated hydraulic conductivity of soils. In addition, in this research, the importance of model structure uncertainty in geophysical modeling is emphasized by developing a framework to account for the model structure uncertainty in geophysical modeling. The contribution of the model structure uncertainty to the predictive uncertainty of the model is shown to be larger than the uncertainty associated with the model parameters. Also it has been demonstrated that increasing the model complexity may lead to a better fit of the function, but at the cost of an increasing level of uncertainty. It is recommended that the effect of model structure uncertainty should be… Advisors/Committee Members: Elshorbagy, Amin A., Si, Bing C., Hawkes, Christopher D., Barbour, S. Lee, Zhang, W. J. (Chris).

Subjects/Keywords: neural networks; genetic programming; modeling; hydrology; uncertainty; soft-computing

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Parasuraman, K. (2007). Hydrologic prediction using pattern recognition and soft-computing techniques. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-08172007-165636

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Parasuraman, Kamban. “Hydrologic prediction using pattern recognition and soft-computing techniques.” 2007. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-08172007-165636.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Parasuraman, Kamban. “Hydrologic prediction using pattern recognition and soft-computing techniques.” 2007. Web. 04 Mar 2021.

Vancouver:

Parasuraman K. Hydrologic prediction using pattern recognition and soft-computing techniques. [Internet] [Thesis]. University of Saskatchewan; 2007. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-08172007-165636.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Parasuraman K. Hydrologic prediction using pattern recognition and soft-computing techniques. [Thesis]. University of Saskatchewan; 2007. Available from: http://hdl.handle.net/10388/etd-08172007-165636

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

10. Comeau, Laura Elizabeth Lamplugh. Glacier contribution to the North and South Saskatchewan Rivers.

Degree: 2008, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-01192009-121151

► The hydrological model WATFLOOD and a volume-area scaling relationship are applied to estimate glacier wastage and seasonal Melt contribution to the headwaters of the North… (more)

▼ The hydrological model WATFLOOD and a volume-area scaling relationship are applied to estimate glacier wastage and seasonal Melt contribution to the headwaters of the North and South Saskatchewan Rivers on the eastern slopes of the Canadian Rocky Mountains from 1975-1998. Wastage is defined as the annual volume of glacier ice melt that exceeds the annual volume of snow accumulation into the glacier system, causing an annual net loss of glacier volume. Melt is defined as the annual volume of glacier ice melt that is equal to, or less than, the annual volume of snow that does not melt from the glacier and instead accumulates into the glacier system. It is proposed that the distinction between these two components of glacier runoff is important in studies of the impact of glacier variations on flow. A comparison of similar glacierised and non-glacierised basin hydrographs shows that glacierised basins have greater specific streamflow in the late summer months of otherwise low flow, and the presence of glaciers in a basin results in a lower coefficient of variation of the July to September and annual streamflow as a result of the natural regulating impact of glaciers on streamflow. Glacier wastage and Melt are estimated from a hydrological-hypsometric comparison of glacierised and non-glacierised basins, mass balance data from Peyto Glacier and the published work of other researchers. The similarity of these results to those from the volume-area scaling approach indicates that this is a suitable method for estimating glacier wastage on a regional scale. Whilst the WATFLOOD results were similar to those from the hydrological-hypsometric approach regionally, there were considerable differences between the estimates of combined glacier wastage and Melt from different methods in the small, highly glacierised Peyto Glacier basin. The WATFLOOD results, and thus the estimates of Melt, are therefore treated with caution and it is proposed that glacier runoff data is collected with which to improve the model calibration, verify results and make uncertainty estimations, currently prevented by the severe lack of data on glaciers in the North and South Saskatchewan River basins. The results show that glacier wastage was smaller than Melt and varied between glaciers, though contributed over 10% to streamflow in a number of basins in the July to September period 1975-1998. Melt was positively correlated with basin glacier cover and contributed over 25% to streamflow from basins with glacier cover as little as 1% in the July to September period. The significance of Melt is manifest in its timing since it is equal to the annual volume of snow that accumulates into the glacier system, the volume of which melts as ice instead of snow thus entering the stream in the later summer months after snowmelt. Future glacier decline is therefore expected to result in an advancement of peak flow towards a snowmelt regime hydrograph, assuming that post glacial basin conditions do not similarly delay snowmelt runoff. The resulting reduced late… Advisors/Committee Members: de Boer, Dirk H., Pietroniro, Alain, Guo, Xulin, Elshorbagy, Amin A., Pomeroy, John W..

Subjects/Keywords: Glacier; Melt; Wastage; Streamflow; Climate

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Comeau, L. E. L. (2008). Glacier contribution to the North and South Saskatchewan Rivers. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-01192009-121151

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Comeau, Laura Elizabeth Lamplugh. “Glacier contribution to the North and South Saskatchewan Rivers.” 2008. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-01192009-121151.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Comeau, Laura Elizabeth Lamplugh. “Glacier contribution to the North and South Saskatchewan Rivers.” 2008. Web. 04 Mar 2021.

Vancouver:

Comeau LEL. Glacier contribution to the North and South Saskatchewan Rivers. [Internet] [Thesis]. University of Saskatchewan; 2008. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-01192009-121151.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Comeau LEL. Glacier contribution to the North and South Saskatchewan Rivers. [Thesis]. University of Saskatchewan; 2008. Available from: http://hdl.handle.net/10388/etd-01192009-121151

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

11. Janfada, Arash. A laboratory evaluation of the sorption of oil sands naphthenic acids on soils.

Degree: 2007, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-12212007-093515

► The adsorption characteristics of an oil sands tailings water (OSTW) mixture of naphthenic acids were determined using a batch partitioning method for two soils from… (more)

▼ The adsorption characteristics of an oil sands tailings water (OSTW) mixture of naphthenic acids were determined using a batch partitioning method for two soils from the Alberta oil sands region. The soils were mineral peat mixtures produced during salvage operations, with Soil 1 having a higher organic carbon fraction (foc) than Soil 2. Naphthenic acids are a significant toxic byproduct of bitumen extraction, and are acutely toxic to aquatic organisms. The sorption of naphthenic acids as affected by a high ionic strength solution was examined using a synthetic groundwater (SGW) mixture.The adsorption isotherms were found to be linear in all cases. All tests were conducted at 4 °C, and at a pH of 8.0 ± 0.4, reflective of the conditions in a tailings settling facility near Fort McMurray, AB. The adsorption characteristics of the naphthenic acids in the SGW solution were compared to that of the mixture in Milli-Q water for the two soils. In the presence of SGW, the adsorption coefficient (Kd) for the mixture of naphthenic acids on Soil 1 was an order of magnitude higher than that observed with the same soil and the Milli-Q water mixture, increasing from 1.9 ± 0.2 mL/g to 17.8 ± 1.5 mL/g. The adsorption coefficient for the mixture of naphthenic acids on Soil 2 was also observably higher in the SGW mixture, increasing from 1.3 ± 0.15 mL/g to 3.7 ± 0.2 mL/g. In order to determine whether preferential sorption is exhibited by a particular species within the mixture, the relative fractional abundance of the individual naphthenic acids was plotted as a 3-dimensional histogram for carbon numbers 5 to 37. It was found that for all Z families (where Z is a measure of the number of carbon ring structures), naphthenic acids within the middle range of carbon numbers showed preferential sorption. A two sample t-test confirmed that the naphthenic acids in the carbon number groupings 15 to 24 and 25 to 37 sorbed significantly in the SGW mixture when compared to those in the carbon number grouping of 5 to 14. It was concluded that select constituents of oil sands naphthenic acids mixtures sorb strongly to soil under conditions of elevated salinity and therefore adsorption could be an important attenuating mechanism in groundwater transport. Furthermore, preferential sorption of the individual naphthenic acids is important with respect to toxicity since lower molecular weight naphthenic acids are believed to have a more pronounced toxic effect. Overall, the measured adsorption coefficients indicate that there can be significant sorption of OSTW derived naphthenic acids to soils. Advisors/Committee Members: Headley, John V., Barbour, S. Lee, Fleming, Ian R., Elshorbagy, Amin A., Hill, Gordon A., Peng, Jian.

Subjects/Keywords: sorption oil sands naphthenic acids soils

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Janfada, A. (2007). A laboratory evaluation of the sorption of oil sands naphthenic acids on soils. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-12212007-093515

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Janfada, Arash. “A laboratory evaluation of the sorption of oil sands naphthenic acids on soils.” 2007. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-12212007-093515.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Janfada, Arash. “A laboratory evaluation of the sorption of oil sands naphthenic acids on soils.” 2007. Web. 04 Mar 2021.

Vancouver:

Janfada A. A laboratory evaluation of the sorption of oil sands naphthenic acids on soils. [Internet] [Thesis]. University of Saskatchewan; 2007. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-12212007-093515.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Janfada A. A laboratory evaluation of the sorption of oil sands naphthenic acids on soils. [Thesis]. University of Saskatchewan; 2007. Available from: http://hdl.handle.net/10388/etd-12212007-093515

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

12. Jackson, Kristopher. Reliability-based load management of the Red Deer River bridge.

Degree: 2007, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-10022007-104048

► This thesis presents the results of an investigation into the evaluation of a selected test bridge using instrumentation to obtain site-specific factors contributing to the… (more)

▼ This thesis presents the results of an investigation into the evaluation of a selected test bridge using instrumentation to obtain site-specific factors contributing to the evaluation, with the ultimate objective of improving the estimate of the bridge’s reliability in order to assess allowable loading more accurately. The experimental portion of the research program involved instrumenting the test bridge with strain gauges, and recording field measurements using two forms of loading. The analytical portion of the research program involved the analysis of the bridge in the as-designed state, based on the design drawings and specification, followed by a re-analysis of the bridge using the site-specific factors measured on-site. The bridge was evaluated using methods outlined in the Canadian Highway Bridge Design Code CAN/CSA-S6-00 (CSA 2000). The test bridge is located near the community of Hudson Bay, Saskatchewan. The bridge is constructed of steel-reinforced concrete, and there are three, three-span arch-shaped girders. There are also external steel bars added after initial construction to increase the midspan bending moment resistance. In total, 45 strain gauges were placed on the middle spans of the three girders to record strain induced by two forms of loading: controlled loading, in which a truck of known weight and dimensions was driven over the bridge in a number of pre-determined configurations, and in-situ loading, in which normal truck traffic was used. The current allowable loading on the bridge is a gross vehicle weight of 62.5 t, although increasing the allowable loading to 110 t has been proposed, along with two strengthening alternatives to make this increased loading feasible. To provide a base-line analysis for comparison purposes, the bridge was first evaluated based strictly on information taken from the design drawings and specifications. The evaluation was performed using the load and resistance factor method, in which load and resistance factors were used to account for uncertainty, as well as by the mean load method, in which statistical properties of the variable’s parameters included in the design were used to account for uncertainty. The result of the load and resistance factor method was a live load capacity factor, indicating the overall “rating” of the bridge. In addition to the live load capacity factor, the mean load method was also used to determine the reliability index. The results of the as-designed analysis showed that the mean load method gave more conservative estimates of the bridge capacity. Furthermore, it was determined that, based on these assessments, the bridge would not have sufficient capacity to carry the proposed 110 t truck loads.The bridge was re-evaluated using site-specific factors with the mean load method. Using the measured strains, statistical parameters were determined for live load effects, distribution factors, dynamic load allowance, and resistance. Statistical parameters that could not be obtained readily through testing were obtained… Advisors/Committee Members: Sparling, Bruce F., Sparks, Gordon A., Wegner, Leon D., Elshorbagy, Amin A., El-Amoury, Tarek, Boulfiza, Mohamed.

Subjects/Keywords: structural reliability; bridge; dynamic load allowance; impact factor; load distribution

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jackson, K. (2007). Reliability-based load management of the Red Deer River bridge. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-10022007-104048

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jackson, Kristopher. “Reliability-based load management of the Red Deer River bridge.” 2007. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-10022007-104048.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jackson, Kristopher. “Reliability-based load management of the Red Deer River bridge.” 2007. Web. 04 Mar 2021.

Vancouver:

Jackson K. Reliability-based load management of the Red Deer River bridge. [Internet] [Thesis]. University of Saskatchewan; 2007. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-10022007-104048.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jackson K. Reliability-based load management of the Red Deer River bridge. [Thesis]. University of Saskatchewan; 2007. Available from: http://hdl.handle.net/10388/etd-10022007-104048

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

13. Jutla, Antarpreet Singh. Hydrologic modeling of reconstructed watersheds using a system dynamics approach.

Degree: 2006, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-01122006-160841

► The mining of oil sands in the sub-humid region of Northern Alberta, Canada causes large-scale landscape disturbance, which subsequently requires extensive reclamation to re-establish the… (more)

▼ The mining of oil sands in the sub-humid region of Northern Alberta, Canada causes large-scale landscape disturbance, which subsequently requires extensive reclamation to re-establish the surface and subsurface hydrology. The reconstructed watersheds examined in this study are located at the Syncrude Canada Limited mine site, 40 km North of Fort McMurray, Alberta, Canada. The three experimental reconstructed watersheds, with nominal soil thicknesses of 1.0 m, 0.50 m and 0.35 m comprised a thin layer of peat (15-20 cm) over varying thicknesses of secondary (till) soil, have been constructed to cover saline sodic overburden and to provide sufficient moisture storage for vegetation while minimizing surface runoff and deep percolation to the underlying shale overburden. In order to replicate the hydrological behavior, assess the sustainability, and trace the evolution over time of the reclaimed watersheds, a suitable modeling tool is needed. In this research, a model is developed using the system dynamics approach to simulate the hydrological processes in the three experimental reconstructed watersheds and to assess their ability to provide the various watershed functions. The model simulates the vertical and lateral water movement, surface runoff and evapotranspiration within each watershed. Actual evapotranspiration, which plays an important role in the hydrology of the Canadian semi-arid regions, is simulated using an indexed soil moisture method. The movement of water within the various soil layers of the cover is based on parametric relationships in conjunction with conceptual infiltration models. The feedback relationships among the various dynamic hydrologic processes in the watershed are captured in the developed System Dynamic Watershed Model (SDWM). Most hydrological models are evaluated using runoff as the determining criterion for model calibration and validation, while accounting for the movement of moisture in the soil as a water loss. Since one of the primary objectives of a reconstructed watershed is to maintain the natural flora and fauna, it is important to recognize that soil moisture plays an important role in assessing the performance of the reconstructed watersheds. In turn, soil moisture becomes an influential factor for quantifying the health of the reconstructed watershed. The developed model has been calibrated and validated with data for two years (2001-2002), upholding the sensitive relationship between soil moisture and runoff. Accurate calibration of the model based on simulations of soil moisture in the various soil layers improves its overall performance. The model was subsequently used to simulate the three sub-watersheds for five years, with changing the calibrated model parameters to use them as indicators of watershed evolution. The simulated results were compared with the observed values. The results of the study illustrate that all three watersheds are still evolving. Failure to identify a unique parameter set for simulating the watershed response supports the hypothesis of… Advisors/Committee Members: Kells, James A., Elshorbagy, Amin A., Peng, Jian, Maule, Charles P., Barbour, S. Lee, Pomeroy, John W..

Subjects/Keywords: Stella; Reclamation; Soil cover; Watershed modeling; soil moisture; calibration; watershed evolution; System Dynamics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jutla, A. S. (2006). Hydrologic modeling of reconstructed watersheds using a system dynamics approach. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-01122006-160841

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jutla, Antarpreet Singh. “Hydrologic modeling of reconstructed watersheds using a system dynamics approach.” 2006. Thesis, University of Saskatchewan. Accessed March 04, 2021. http://hdl.handle.net/10388/etd-01122006-160841.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jutla, Antarpreet Singh. “Hydrologic modeling of reconstructed watersheds using a system dynamics approach.” 2006. Web. 04 Mar 2021.

Vancouver:

Jutla AS. Hydrologic modeling of reconstructed watersheds using a system dynamics approach. [Internet] [Thesis]. University of Saskatchewan; 2006. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10388/etd-01122006-160841.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jutla AS. Hydrologic modeling of reconstructed watersheds using a system dynamics approach. [Thesis]. University of Saskatchewan; 2006. Available from: http://hdl.handle.net/10388/etd-01122006-160841

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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