The effect of antecedent rainfall on slope stability

A case study is presented in order to identify the effect of antecedent rainfall on slope stability for Singapore. A storm in February 1995 (during which 95 mm of rain fell in 2 1/2 h) caused more than twenty shallow landslides on the Nanyang Technological University Campus. Details of the location,...

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Main Authors: Rahardjo, Harianto, Leong, Eng Choon, Li, X. W., Toll, David G.
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2011
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Online Access:https://hdl.handle.net/10356/101444
http://hdl.handle.net/10220/7364
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1014442020-03-07T11:43:46Z The effect of antecedent rainfall on slope stability Rahardjo, Harianto Leong, Eng Choon Li, X. W. Toll, David G. School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Geotechnical A case study is presented in order to identify the effect of antecedent rainfall on slope stability for Singapore. A storm in February 1995 (during which 95 mm of rain fell in 2 1/2 h) caused more than twenty shallow landslides on the Nanyang Technological University Campus. Details of the location, size and morphology of the landslides are presented. The antecedent rainfall during the five days preceding the event was significant in causing these landslides since other rainfall events of similar magnitude (but with less antecedent rainfall) did not cause landslides. To further understand the effect of antecedent rainfall, numerical modelling of one of the slope failures is presented. The changes in pore-water pressure due to different rainfall patterns were simulated and these were used to calculate the changes in factor of safety of the slope. The results demonstrate that antecedent rainfall does play an important role in slope stability. Accepted version 2011-12-08T06:33:31Z 2019-12-06T20:38:48Z 2011-12-08T06:33:31Z 2019-12-06T20:38:48Z 2001 2001 Journal Article Rahardjo, H., Li, X. W., Toll, D. G., & Leong, E. C. (2001). The Effect of Antecedent Rainfall on Slope Stability. Geotechnical and Geological Engineering, 19(3-4), 371-399. https://hdl.handle.net/10356/101444 http://hdl.handle.net/10220/7364 10.1023/A:1013129725263 en Geotechnical and geological engineering © 2001 Springer
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Civil engineering::Geotechnical
spellingShingle DRNTU::Engineering::Civil engineering::Geotechnical
Rahardjo, Harianto
Leong, Eng Choon
Li, X. W.
Toll, David G.
The effect of antecedent rainfall on slope stability
description A case study is presented in order to identify the effect of antecedent rainfall on slope stability for Singapore. A storm in February 1995 (during which 95 mm of rain fell in 2 1/2 h) caused more than twenty shallow landslides on the Nanyang Technological University Campus. Details of the location, size and morphology of the landslides are presented. The antecedent rainfall during the five days preceding the event was significant in causing these landslides since other rainfall events of similar magnitude (but with less antecedent rainfall) did not cause landslides. To further understand the effect of antecedent rainfall, numerical modelling of one of the slope failures is presented. The changes in pore-water pressure due to different rainfall patterns were simulated and these were used to calculate the changes in factor of safety of the slope. The results demonstrate that antecedent rainfall does play an important role in slope stability.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Rahardjo, Harianto
Leong, Eng Choon
Li, X. W.
Toll, David G.
format Article
author Rahardjo, Harianto
Leong, Eng Choon
Li, X. W.
Toll, David G.
author_sort Rahardjo, Harianto
title The effect of antecedent rainfall on slope stability
title_short The effect of antecedent rainfall on slope stability
title_full The effect of antecedent rainfall on slope stability
title_fullStr The effect of antecedent rainfall on slope stability
title_full_unstemmed The effect of antecedent rainfall on slope stability
title_sort effect of antecedent rainfall on slope stability
publishDate 2011
url https://hdl.handle.net/10356/101444
http://hdl.handle.net/10220/7364
_version_ 1681041214074257408