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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Main Author: Tabarroki, Mohammad
Format: Thesis
Language:English
Published: 2013
Subjects:
Online Access:http://eprints.usm.my/45139/
http://eprints.usm.my/45139/1/Mohammad%20Tabarroki24.pdf
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author Tabarroki, Mohammad
author_facet Tabarroki, Mohammad
author_sort Tabarroki, Mohammad
building USM Institutional Repository
collection Online Access
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.
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spelling usm-451392019-08-01T07:18:48Z http://eprints.usm.my/45139/ Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques 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 NonPeerReviewed application/pdf en http://eprints.usm.my/45139/1/Mohammad%20Tabarroki24.pdf Tabarroki, Mohammad (2013) Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques. Masters thesis, Universiti Sains Malaysia.
spellingShingle TA1-2040 Engineering (General). Civil engineering (General)
Tabarroki, Mohammad
Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques
title 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_short Computer Aided Slope Stability Analysis Using Optimization And Parallel Computing Techniques
title_sort computer aided slope stability analysis using optimization and parallel computing techniques
topic TA1-2040 Engineering (General). Civil engineering (General)
url http://eprints.usm.my/45139/
http://eprints.usm.my/45139/1/Mohammad%20Tabarroki24.pdf