Backanalysis of rainfall induced landslide in Sabah by Perisi Model

Rainfall has been recognized as the main landslide triggering agent particularly in Malaysia. Therefore, this project focuses on the significance of extreme rainfalls on suction variations and slope stability using PERISI (Preliminary Evaluation of Rainfall-Induced Slope Instability) program. Previo...

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Main Author:	Matlan, Siti Jahara
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/12315/6/SitiJaharaMatlanMFKA2009.pdf
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id	my-utm-ep.12315
record_format	uketd_dc
spelling	my-utm-ep.123152017-09-17T07:11:39Z Backanalysis of rainfall induced landslide in Sabah by Perisi Model 2009-11 Matlan, Siti Jahara TA Engineering (General). Civil engineering (General) Rainfall has been recognized as the main landslide triggering agent particularly in Malaysia. Therefore, this project focuses on the significance of extreme rainfalls on suction variations and slope stability using PERISI (Preliminary Evaluation of Rainfall-Induced Slope Instability) program. Previous study showed that the extreme rainfall is characterized by geographical location. Hence, Intensity Duration Frequency (IDF) curve for Kota Kinabalu was developed in this study for 10 year return period based on 30 year data. PERISI was used to study the effect of rainfall infiltration on the stability of the two cases of slope failure in Kota Kinabalu Sabah. The study show that the critical rainfall duration depends on the soil’s moisture retention ability and permeability. The soils at Site 1 and 2 are classified as sandy SILT and Highly Plastic CLAY respectively. Analysis showed that combination of 1 day major rainfall and 14 days antecedent was found to cause slope failure in Site 1 while 30 days cumulative rainfall has caused slope instability in Site 2. The comparison between dry and extreme condition in the factor of safety analysis also indicate that rainfall has a great effect on the slope stability. 2009-11 Thesis http://eprints.utm.my/id/eprint/12315/ http://eprints.utm.my/id/eprint/12315/6/SitiJaharaMatlanMFKA2009.pdf application/pdf en public http://161.139.39.216:8080/vital/access/manager/Repository/vital:67642 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) Matlan, Siti Jahara Backanalysis of rainfall induced landslide in Sabah by Perisi Model
description	Rainfall has been recognized as the main landslide triggering agent particularly in Malaysia. Therefore, this project focuses on the significance of extreme rainfalls on suction variations and slope stability using PERISI (Preliminary Evaluation of Rainfall-Induced Slope Instability) program. Previous study showed that the extreme rainfall is characterized by geographical location. Hence, Intensity Duration Frequency (IDF) curve for Kota Kinabalu was developed in this study for 10 year return period based on 30 year data. PERISI was used to study the effect of rainfall infiltration on the stability of the two cases of slope failure in Kota Kinabalu Sabah. The study show that the critical rainfall duration depends on the soil’s moisture retention ability and permeability. The soils at Site 1 and 2 are classified as sandy SILT and Highly Plastic CLAY respectively. Analysis showed that combination of 1 day major rainfall and 14 days antecedent was found to cause slope failure in Site 1 while 30 days cumulative rainfall has caused slope instability in Site 2. The comparison between dry and extreme condition in the factor of safety analysis also indicate that rainfall has a great effect on the slope stability.
format	Thesis
qualification_level	Master's degree
author	Matlan, Siti Jahara
author_facet	Matlan, Siti Jahara
author_sort	Matlan, Siti Jahara
title	Backanalysis of rainfall induced landslide in Sabah by Perisi Model
title_short	Backanalysis of rainfall induced landslide in Sabah by Perisi Model
title_full	Backanalysis of rainfall induced landslide in Sabah by Perisi Model
title_fullStr	Backanalysis of rainfall induced landslide in Sabah by Perisi Model
title_full_unstemmed	Backanalysis of rainfall induced landslide in Sabah by Perisi Model
title_sort	backanalysis of rainfall induced landslide in sabah by perisi model
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/12315/6/SitiJaharaMatlanMFKA2009.pdf
_version_	1747814921423290368

Backanalysis of rainfall induced landslide in Sabah by Perisi Model

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