Slope stabilization influenced by unsaturated soil

This study provides the exploration of methods for slope stabilization influenced by unsaturated soil. Two methods known as Bishop's Simplified method and also Fellenius's method are use in order to determine the factor of safety (FOS) of unsaturated soil slope. Since these methods were on...

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Main Author:	Muhammad Farhan, Zolkepli
Format:	Thesis
Language:	English English English
Published:	2018
Subjects:	GB Physical geography TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/23265/ http://umpir.ump.edu.my/id/eprint/23265/ http://umpir.ump.edu.my/id/eprint/23265/1/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20Table%20of%20contents.pdf http://umpir.ump.edu.my/id/eprint/23265/2/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20Abstract.pdf http://umpir.ump.edu.my/id/eprint/23265/3/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20References.pdf

id	ump-23265
recordtype	eprints
spelling	ump-232652018-12-31T04:15:19Z http://umpir.ump.edu.my/id/eprint/23265/ Slope stabilization influenced by unsaturated soil Muhammad Farhan, Zolkepli GB Physical geography TA Engineering (General). Civil engineering (General) This study provides the exploration of methods for slope stabilization influenced by unsaturated soil. Two methods known as Bishop's Simplified method and also Fellenius's method are use in order to determine the factor of safety (FOS) of unsaturated soil slope. Since these methods were only applicable to determine the FOS value of saturated soil slope only, some modifications need to be done. The original formula of Bishop's Simplified method will be modified by adding the elements of matric suction, (µa-µw) and unsaturated friction angle øb so that it is applicable to calculate slope stability of unsaturated soil slope. Fellenius's method was already modified by previous researcher. The research employed several approaches i.e sample collection, laboratory experimental and slope analysis. The soil sample was collected at Pahang Matriculation College involving disturbed and undisturbed samples. The laboratory works were conducted to determine both index properties and engineering properties of soil. From the analysis, the soil at Pahang Matriculation College can be considered as Sandy SILT with high plasticity. From the result of engineering properties, the cohesion value is 9 kPa, the saturated friction angle ø' is 25º and the unsaturated friction angle øb 21º. The slope analysis to design the slope measurement was conducted using SLOPE/W. The FOS calculation involved both Bishop's and Fellenius's methods. The FOS values were determined from SLOPE/W first, and then using manual calculation to make sure there was only little percentage of difference of FOS value when calculating using both software and manual calculation. Finally, the FOS values for unsaturated soil slope for both methods were compared to determine which method gave higher FOS value with and without suction. From the result of analysis, it can be concluded that, the FOS value for both saturated and unsaturated soil slope is much higher when calculated using Bishop‟s Simplified method compare to Fellenius's method. 2018-05 Thesis NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23265/1/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20Table%20of%20contents.pdf pdf en http://umpir.ump.edu.my/id/eprint/23265/2/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20Abstract.pdf pdf en http://umpir.ump.edu.my/id/eprint/23265/3/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20References.pdf Muhammad Farhan, Zolkepli (2018) Slope stabilization influenced by unsaturated soil. Masters thesis, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:105324&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English
topic	GB Physical geography TA Engineering (General). Civil engineering (General)
spellingShingle	GB Physical geography TA Engineering (General). Civil engineering (General) Muhammad Farhan, Zolkepli Slope stabilization influenced by unsaturated soil
description	This study provides the exploration of methods for slope stabilization influenced by unsaturated soil. Two methods known as Bishop's Simplified method and also Fellenius's method are use in order to determine the factor of safety (FOS) of unsaturated soil slope. Since these methods were only applicable to determine the FOS value of saturated soil slope only, some modifications need to be done. The original formula of Bishop's Simplified method will be modified by adding the elements of matric suction, (µa-µw) and unsaturated friction angle øb so that it is applicable to calculate slope stability of unsaturated soil slope. Fellenius's method was already modified by previous researcher. The research employed several approaches i.e sample collection, laboratory experimental and slope analysis. The soil sample was collected at Pahang Matriculation College involving disturbed and undisturbed samples. The laboratory works were conducted to determine both index properties and engineering properties of soil. From the analysis, the soil at Pahang Matriculation College can be considered as Sandy SILT with high plasticity. From the result of engineering properties, the cohesion value is 9 kPa, the saturated friction angle ø' is 25º and the unsaturated friction angle øb 21º. The slope analysis to design the slope measurement was conducted using SLOPE/W. The FOS calculation involved both Bishop's and Fellenius's methods. The FOS values were determined from SLOPE/W first, and then using manual calculation to make sure there was only little percentage of difference of FOS value when calculating using both software and manual calculation. Finally, the FOS values for unsaturated soil slope for both methods were compared to determine which method gave higher FOS value with and without suction. From the result of analysis, it can be concluded that, the FOS value for both saturated and unsaturated soil slope is much higher when calculated using Bishop‟s Simplified method compare to Fellenius's method.
format	Thesis
author	Muhammad Farhan, Zolkepli
author_facet	Muhammad Farhan, Zolkepli
author_sort	Muhammad Farhan, Zolkepli
title	Slope stabilization influenced by unsaturated soil
title_short	Slope stabilization influenced by unsaturated soil
title_full	Slope stabilization influenced by unsaturated soil
title_fullStr	Slope stabilization influenced by unsaturated soil
title_full_unstemmed	Slope stabilization influenced by unsaturated soil
title_sort	slope stabilization influenced by unsaturated soil
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/23265/ http://umpir.ump.edu.my/id/eprint/23265/ http://umpir.ump.edu.my/id/eprint/23265/1/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20Table%20of%20contents.pdf http://umpir.ump.edu.my/id/eprint/23265/2/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20Abstract.pdf http://umpir.ump.edu.my/id/eprint/23265/3/Slope%20stabilization%20influenced%20by%20unsaturated%20soil%20-%20References.pdf
first_indexed	2023-09-18T22:34:45Z
last_indexed	2023-09-18T22:34:45Z
_version_	1777416521211969536

Slope stabilization influenced by unsaturated soil

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