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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| Format: | Thesis |
| Language: | English |
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2009
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| Online Access: | http://eprints.utm.my/12315/6/SitiJaharaMatlanMFKA2009.pdf |
| _version_ | 1796855055402401792 |
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| author | Matlan, Siti Jahara |
| author_facet | Matlan, Siti Jahara |
| author_sort | Matlan, Siti Jahara |
| collection | ePrints |
| 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. |
| first_indexed | 2024-03-05T18:23:01Z |
| format | Thesis |
| id | utm.eprints-12315 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T18:23:01Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | utm.eprints-123152017-09-17T07:11:39Z http://eprints.utm.my/12315/ Backanalysis of rainfall induced landslide in Sabah by Perisi Model 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 NonPeerReviewed application/pdf en http://eprints.utm.my/12315/6/SitiJaharaMatlanMFKA2009.pdf Matlan, Siti Jahara (2009) Backanalysis of rainfall induced landslide in Sabah by Perisi Model. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering. http://161.139.39.216:8080/vital/access/manager/Repository/vital:67642 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Matlan, Siti Jahara Backanalysis of rainfall induced landslide in Sabah by Perisi Model |
| title | 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_short | Backanalysis of rainfall induced landslide in Sabah by Perisi Model |
| title_sort | backanalysis of rainfall induced landslide in sabah by perisi model |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.utm.my/12315/6/SitiJaharaMatlanMFKA2009.pdf |
| work_keys_str_mv | AT matlansitijahara backanalysisofrainfallinducedlandslideinsabahbyperisimodel |