Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques

Slope stability analysis is commonly performed using limit equilibrium methods (LEM). In LEM, factor of safety (FS) is calculated for different trial slip surfaces and the one with the minimum FS is reported as the critical slip surface. Since locating the critical slip surface is believed to...

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محفوظ في:
التفاصيل البيبلوغرافية
المؤلف الرئيسي: Tabarroki, Mohammad
التنسيق: أطروحة
اللغة:English
منشور في: 2013
الموضوعات:
الوصول للمادة أونلاين:http://eprints.usm.my/45139/1/Mohammad%20Tabarroki24.pdf
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spelling my-usm-ep.451392019-08-01T07:18:48Z Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques 2013-07 Tabarroki, Mohammad TA1-2040 Engineering (General). Civil engineering (General) Slope stability analysis is commonly performed using limit equilibrium methods (LEM). In LEM, factor of safety (FS) is calculated for different trial slip surfaces and the one with the minimum FS is reported as the critical slip surface. Since locating the critical slip surface is believed to be an NP-hard (non-deterministic polynomialtime) problem, heuristic global optimization techniques are employed. Although these techniques have usually produced good results, “No Free Lunch” (NFL) theorems seem to have made the problem of locating the critical slip surface an endless research. According to the NFL theorems, no heuristic optimization technique can perform well for all problems. On the other hand, there may exist other slip surfaces that are as important as the critical slip surface in practical analyses. A slip surface is important, if it is located far away from the critical slip surface, but gives FS close to the minimum FS or the consequences of failure along the slip surface is serious. Therefore, there is a need to constantly implement and test different optimization techniques. However, implementation of optimization techniques in slope stability analysis is often not straightforward because it requires internal links to LEM. Firstly, the present study resolves this issue by developing a decoupled algorithm that allows for easy implementation of optimization techniques. Then, to demonstrate the simplicity of this algorithm and to promote the latest research on slope stability, three state-of-the-art optimization techniques are implemented, and their effectiveness and efficiency in detecting single/multiple global and local minima is investigated on a series of test problems. 2013-07 Thesis http://eprints.usm.my/45139/ http://eprints.usm.my/45139/1/Mohammad%20Tabarroki24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Awam
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic TA1-2040 Engineering (General)
Civil engineering (General)
spellingShingle TA1-2040 Engineering (General)
Civil engineering (General)
Tabarroki, Mohammad
Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques
description Slope stability analysis is commonly performed using limit equilibrium methods (LEM). In LEM, factor of safety (FS) is calculated for different trial slip surfaces and the one with the minimum FS is reported as the critical slip surface. Since locating the critical slip surface is believed to be an NP-hard (non-deterministic polynomialtime) problem, heuristic global optimization techniques are employed. Although these techniques have usually produced good results, “No Free Lunch” (NFL) theorems seem to have made the problem of locating the critical slip surface an endless research. According to the NFL theorems, no heuristic optimization technique can perform well for all problems. On the other hand, there may exist other slip surfaces that are as important as the critical slip surface in practical analyses. A slip surface is important, if it is located far away from the critical slip surface, but gives FS close to the minimum FS or the consequences of failure along the slip surface is serious. Therefore, there is a need to constantly implement and test different optimization techniques. However, implementation of optimization techniques in slope stability analysis is often not straightforward because it requires internal links to LEM. Firstly, the present study resolves this issue by developing a decoupled algorithm that allows for easy implementation of optimization techniques. Then, to demonstrate the simplicity of this algorithm and to promote the latest research on slope stability, three state-of-the-art optimization techniques are implemented, and their effectiveness and efficiency in detecting single/multiple global and local minima is investigated on a series of test problems.
format Thesis
qualification_level Master's degree
author Tabarroki, Mohammad
author_facet Tabarroki, Mohammad
author_sort Tabarroki, Mohammad
title Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques
title_short Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques
title_full Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques
title_fullStr Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques
title_full_unstemmed Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques
title_sort computer aided slope stability analysis using optimization and parallel computing techniques
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Kejuruteraan Awam
publishDate 2013
url http://eprints.usm.my/45139/1/Mohammad%20Tabarroki24.pdf
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