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Estimating permeability functions of Singapore residual soils

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Estimating permeability functions of Singapore residual soils

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Title: Estimating permeability functions of Singapore residual soils
Author: Agus, Setianto Samingan; Leong, Eng Choon; Rahardjo, Harianto
Copyright year: 2005
Abstract: About two thirds of Singapore's land area is covered with residual soils with various depths of weathering. For geotechnical analyses, information pertaining to the hydraulic properties (coefficient of permeability and water retention capability) of these soils is important. Residual soils above the groundwater table commonly exist under unsaturated conditions and the characterisation of residual soils includes both saturated and unsaturated soil properties (e.g., permeability). As determination of the unsaturated coefficient of permeability is tedious, time consuming and labour intensive, predictive methods are often preferred. This paper describes the estimation of permeability functions (i.e., saturated and unsaturated coefficients of permeability) of Singapore residual soils using the soil–water characteristic curve and saturated coefficient of permeability obtained in the laboratory for a number of Singapore residual soils. It has been found that the predictive methods give good agreement with the experimental data and thus provide good estimate of the permeability function.
Subject: DRNTU::Engineering::Civil engineering::Geotechnical.
Type: Journal Article
Series/ Journal Title: Engineering geology
School: School of Civil and Environmental Engineering
Rights: © 2005 Elsevier Ltd.
Version: Accepted version

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