Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/79885
Title: Effects of groundwater table position and soil properties on stability of slope during rainfall
Authors: Rahardjo, Harianto
Satyanaga, Alfrendo
Leong, Eng Choon
Ng, Yew Song
Keywords: DRNTU::Engineering::Civil engineering::Geotechnical
Issue Date: 2010
Source: Rahardjo, H., Satyanaga, A., Leong, E. C., & Ng, Y. S. (2010). Effects of Groundwater Table Position and Soil Properties on Stability of Slope during Rainfall. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 136(11), 1555-1564.
Series/Report no.: Journal of geotechnical and geoenvironmental engineering, ASCE
Abstract: Rainfall, hydrological condition, and geological formation of slope are important contributing factors to slope failures. Parametric studies were carried out to study the effect of groundwater table position, rainfall intensities, and soil properties in affecting slope stability. Three different groundwater table positions corresponding to the wettest, typical, and driest periods in Singapore and four different rainfall intensities 9, 22, 36, and 80 mm/h were used in the numerical analyses. Typical soil properties of two main residual soils from the Bukit Timah Granite and the sedimentary Jurong Formation in Singapore were incorporated into the numerical analyses. The changes in factor of safety during rainfall were not affected significantly by the groundwater table near the ground surface due to the relatively small changes in matric suction during rainfall. A delay in response of the minimum factor of safety due to rainfall and a slower recovery rate after rainfall were observed in slopes from the sedimentary Jurong Formation as compared to those slopes from the Bukit Timah Granite. Numerical analyses of an actual residual soil slope from the Bukit Timah Granite at Marsiling Road and a residual soil slope from the sedimentary Jurong Formation at Jalan Kukoh show good agreement with the trends observed in the parametric studies.
URI: https://hdl.handle.net/10356/79885
http://hdl.handle.net/10220/7209
ISSN: 1090-0241
DOI: 10.1061/(ASCE)GT.1943-5606.0000385
Rights: © 2010 ASCE. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Geotechnical and Geoenvironmental Engineering, ASCE. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0000385 ]
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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