Influence of rainfall pattern on suction distribution and slope stability
Also available in printed version : QC925 L43 2008 raf
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| Other Authors: | |
| Format: | Doctoral thesis |
| Language: | English |
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Universiti Teknologi Malaysia
2025
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| Online Access: | https://utmik.utm.my/handle/123456789/52011 |
| Abstract | Abstract here |
| _version_ | 1854975094483320833 |
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| author | Lee, Min Lee |
| author2 | Nurly Gofar, supervisor |
| author_facet | Nurly Gofar, supervisor Lee, Min Lee |
| author_sort | Lee, Min Lee |
| description | Also available in printed version : QC925 L43 2008 raf |
| format | Doctoral thesis |
| id | utm-123456789-52011 |
| institution | Universiti Teknologi Malaysia |
| language | English |
| publishDate | 2025 |
| publisher | Universiti Teknologi Malaysia |
| record_format | dspace |
| record_pdf | Abstract |
| spelling | utm-123456789-520112025-08-21T08:12:25Z Influence of rainfall pattern on suction distribution and slope stability Lee, Min Lee Nurly Gofar, supervisor Rain and rainfall Also available in printed version : QC925 L43 2008 raf Rainfall-induced slope failure is one of the most severe disasters in tropical regions causing major loss of life and property. This study was carried out to investigate the effect of various rainfall patterns on the suction distribution, hence on slope stability. A series of numerical analyses were conducted via Seep/W on an infinite slope model to simulate the responses of the slope consisting of typical soil types to the extreme rainfalls of five selected locations in the Malaysian Peninsular. One-dimensional infiltration tests were also performed by using a soil column model, instrumented with tensiometers and gypsum blocks, to provide laboratory evidences for the findings of numerical study. The study shows that the combination of antecedent rainfall and major rainfall is the critical rainfall pattern for shallow failure, while the prolonged antecedent rainfall contributes to the deep-seated failure for most types of soil. The critical combined duration of antecedent rainfall and major rainfall varies from 11 hours to 13 days. The duration can be estimated from an equation proposed in this study. The critical duration of antecedent rainfall varies from 1 day to 30 days, depending on the soil type, slip plane depth and geographical location. Soil permeability could significantly affect the pattern and the duration of critical rainfall. A computer software (PERISI) was developed to perform the preliminary evaluation of rainfall-induced slope instability. The critical suction distribution and factor of safety computed by PERISI software show good agreement with the results of numerical simulation and field monitoring zulaihi UTM 359 p. Thesis (Ph.D (Kejuruteraan Awam)) - Universiti Teknologi Malaysia, 2008 2025-03-14T07:04:53Z 2025-03-14T07:04:53Z 2008 Doctoral thesis https://utmik.utm.my/handle/123456789/52011 vital:114241 valet-20180903-090845 ENG Closed Access UTM Complete Unpublished Completion application/pdf Universiti Teknologi Malaysia |
| spellingShingle | Rain and rainfall Lee, Min Lee Influence of rainfall pattern on suction distribution and slope stability |
| thesis_level | PhD |
| title | Influence of rainfall pattern on suction distribution and slope stability |
| title_full | Influence of rainfall pattern on suction distribution and slope stability |
| title_fullStr | Influence of rainfall pattern on suction distribution and slope stability |
| title_full_unstemmed | Influence of rainfall pattern on suction distribution and slope stability |
| title_short | Influence of rainfall pattern on suction distribution and slope stability |
| title_sort | influence of rainfall pattern on suction distribution and slope stability |
| topic | Rain and rainfall |
| url | https://utmik.utm.my/handle/123456789/52011 |
| work_keys_str_mv | AT leeminlee influenceofrainfallpatternonsuctiondistributionandslopestability |