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Response of suction distribution to rainfall infiltration in soil slope

Gofar, Nurly and Lee, Lee Min and Kassim, Azman (2008) Response of suction distribution to rainfall infiltration in soil slope. Electronic Journal of Geotechnical Engineering, 13E . ISSN 1089-3032

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Suction plays an important role in the stability of an unsaturated soil slope in tropical region hence, measurement of suction in soil is important for the evaluation of the slope stability. This study is aimed at identifying the contrasting responses of suction distribution in coarse and fine grained soils to rainfall infiltration based on the rainfall and suction distributions measured from two instrumented slopes. The results showed that the suction distribution of coarse-grained soil was more influenced by the short and intense rainfall, while the suction distribution of fine-grained soil was governed by the duration of rainfall. Based on the transient suction distributions monitored at both slopes, it can be concluded that the slope made of fine-grained soils was more susceptible to rainfall-induced slope failure.

Item Type:Article
Uncontrolled Keywords:field monitoring, rainfall infiltration, slope stability, suction distribution, unsaturated soil
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:12859
Deposited By: Mrs Liza Porijo
Deposited On:04 Jul 2011 01:30
Last Modified:04 Jul 2011 01:30

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