Limit equilibrium method and finite element method in slope stability analysis

Limit equilibrium method (LEM) has been applied for decades in slope stability analysis due to its simplicity. Various methods of analysis are available as foundations for limit equilibrium approach such as Ordinary, Bishop, Janbu, Morgenstern-Price, Spencer and others. Between these methods, there...

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Main Author:	Ahmad, Izwan Shah
Format:	Thesis
Language:	English
Published:	2012
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/32258/5/IzwanShahAhmadMFKA2012.pdf
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id	my-utm-ep.32258
record_format	uketd_dc
spelling	my-utm-ep.322582018-04-12T05:06:05Z Limit equilibrium method and finite element method in slope stability analysis 2012-08 Ahmad, Izwan Shah TA Engineering (General). Civil engineering (General) Limit equilibrium method (LEM) has been applied for decades in slope stability analysis due to its simplicity. Various methods of analysis are available as foundations for limit equilibrium approach such as Ordinary, Bishop, Janbu, Morgenstern-Price, Spencer and others. Between these methods, there are differences in terms of assumptions made regarding interslice forces. As the technology developed and the need for a more advance method of analysis grows, finite element method (FEM) was introduced. This method is able to run rigorous analysis on complex problems. With the differences both methods possess, sensitivity analyses and comparisons of result were done using Slope/w and Plaxis software for LEM and FEM respectively. Analyses were done based on a case study of a slope located in Universiti Teknologi Malaysia (UTM) Varying parameters used in this study are cohesion, friction angle and depth of groundwater table. It is found that both programs are sensitive towards changes in friction angle where Slope/w and Plaxis indicated an increment of 32.38% and 28.20% increment respectively in terms of factor of safety. Results also showed that factors of safety obtained from LEM are higher than FEM. This is generally because finite element method can effectively calculate stresses at the crest and toe of the slope. Generated mesh using finite element method also results in a more accurate calculation as each deformation that occurs is analysed by the mesh. 2012-08 Thesis http://eprints.utm.my/id/eprint/32258/ http://eprints.utm.my/id/eprint/32258/5/IzwanShahAhmadMFKA2012.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Ahmad, Izwan Shah Limit equilibrium method and finite element method in slope stability analysis
description	Limit equilibrium method (LEM) has been applied for decades in slope stability analysis due to its simplicity. Various methods of analysis are available as foundations for limit equilibrium approach such as Ordinary, Bishop, Janbu, Morgenstern-Price, Spencer and others. Between these methods, there are differences in terms of assumptions made regarding interslice forces. As the technology developed and the need for a more advance method of analysis grows, finite element method (FEM) was introduced. This method is able to run rigorous analysis on complex problems. With the differences both methods possess, sensitivity analyses and comparisons of result were done using Slope/w and Plaxis software for LEM and FEM respectively. Analyses were done based on a case study of a slope located in Universiti Teknologi Malaysia (UTM) Varying parameters used in this study are cohesion, friction angle and depth of groundwater table. It is found that both programs are sensitive towards changes in friction angle where Slope/w and Plaxis indicated an increment of 32.38% and 28.20% increment respectively in terms of factor of safety. Results also showed that factors of safety obtained from LEM are higher than FEM. This is generally because finite element method can effectively calculate stresses at the crest and toe of the slope. Generated mesh using finite element method also results in a more accurate calculation as each deformation that occurs is analysed by the mesh.
format	Thesis
qualification_level	Master's degree
author	Ahmad, Izwan Shah
author_facet	Ahmad, Izwan Shah
author_sort	Ahmad, Izwan Shah
title	Limit equilibrium method and finite element method in slope stability analysis
title_short	Limit equilibrium method and finite element method in slope stability analysis
title_full	Limit equilibrium method and finite element method in slope stability analysis
title_fullStr	Limit equilibrium method and finite element method in slope stability analysis
title_full_unstemmed	Limit equilibrium method and finite element method in slope stability analysis
title_sort	limit equilibrium method and finite element method in slope stability analysis
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2012
url	http://eprints.utm.my/id/eprint/32258/5/IzwanShahAhmadMFKA2012.pdf
_version_	1747815959356243968

Limit equilibrium method and finite element method in slope stability analysis

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