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Effects of groundwater table position and soil properties on stability of slope during rainfall

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Effects of groundwater table position and soil properties on stability of slope during rainfall

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dc.contributor.author Rahardjo, Harianto
dc.contributor.author Satyanaga, Alfrendo
dc.contributor.author Leong, Eng Choon
dc.contributor.author Ng, Yew Song
dc.date.accessioned 2011-10-11T04:43:59Z
dc.date.available 2011-10-11T04:43:59Z
dc.date.copyright 2010
dc.date.issued 2011-10-11
dc.identifier.citation 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.
dc.identifier.issn 1090-0241
dc.identifier.uri http://hdl.handle.net/10220/7209
dc.description.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.
dc.format.extent 10 p.
dc.language.iso en
dc.relation.ispartofseries Journal of geotechnical and geoenvironmental engineering, ASCE
dc.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 ]
dc.subject DRNTU::Engineering::Civil engineering::Geotechnical.
dc.title Effects of groundwater table position and soil properties on stability of slope during rainfall
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0000385
dc.description.version Accepted version

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