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Performance of horizontal drains in residual soil slopes.

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Performance of horizontal drains in residual soil slopes.

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dc.contributor.author Rahardjo, Harianto.
dc.contributor.author Santoso, Vera Amalia.
dc.contributor.author Leong, Eng Choon.
dc.contributor.author Ng, Yew Song.
dc.contributor.author Hua, Chai Juay.
dc.date.accessioned 2011-10-05T09:21:27Z
dc.date.available 2011-10-05T09:21:27Z
dc.date.copyright 2011
dc.date.issued 2011-10-05
dc.identifier.citation Rahardjo, H., Santoso, V. A., Leong, E. C., Ng, Y. S., & Hua, C. J. (2011). Performance of horizontal drains in residual soil slopes. Soils and foundations, 51(3), 437-447.
dc.identifier.uri http://hdl.handle.net/10220/7165
dc.description.abstract In tropical and subtropical regions, shallow landslides often occur in residual soil slopes. Short duration and high intensity rainfall will increase pore-water pressure and as a result, shear strength of soil in slopes decrease and stability of the slopes is affected. In this study, horizontal drains were installed in a residual soil slope in Singapore in order to improve stability of the slope. The slope was instrumented with tensiometers and piezometers in order to investigate the effectiveness of horizontal drains as a slope stabilization method against rainfall-induced slope failures. Variation of water table elevation and matric suction in the slope due to rainfall events was monitored. In addition, numerical analyses of seepage in the slope due to rainfall were carried out and the results show reasonably good agreement with the monitoring data from field measurements. Field monitoring results indicate that horizontal drains are effective in lowering water table and increasing stability of the investigated slope. Therefore, horizontal drains are considered to be a useful and economical method for improving the stability of residual soil slopes against rainfall.
dc.format.extent 11 p.
dc.language.iso en
dc.relation.ispartofseries Soils and foundations
dc.rights © 2011 Japanese Geotechnical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by Soils and foundations, Japanese Geotechnical Society. 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/10.3208/sandf.51.437].
dc.subject DRNTU::Engineering::Civil engineering::Geotechnical.
dc.title Performance of horizontal drains in residual soil slopes.
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.3208/sandf.51.437
dc.description.version Accepted version

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