Please use this identifier to cite or link to this item: https://doi.org/10.1061/41183(418)72
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dc.titleEffect of 1D infiltration assumption on stability of spatially variable slope
dc.contributor.authorSantoso, A.M.
dc.contributor.authorPhoon, K.-K.
dc.contributor.authorQuek, S.-T.
dc.date.accessioned2014-06-19T09:18:15Z
dc.date.available2014-06-19T09:18:15Z
dc.date.issued2011
dc.identifier.citationSantoso, A.M.,Phoon, K.-K.,Quek, S.-T. (2011). Effect of 1D infiltration assumption on stability of spatially variable slope. Geotechnical Special Publication (224 GSP) : 704-711. ScholarBank@NUS Repository. <a href="https://doi.org/10.1061/41183(418)72" target="_blank">https://doi.org/10.1061/41183(418)72</a>
dc.identifier.isbn9780784411834
dc.identifier.issn08950563
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/75124
dc.description.abstractRainfall-induced landslides are often analyzed using the infinite slope model, in which each slice of the slope is treated as a soil column subjected to one-dimensional, vertical infiltration. This one-dimensional (1D) assumption means that slope inclination and lateral downslope flow of water are ignored. Some studies have shown that the impact of lateral flow on slope stability is not significant. Hence, 1D infiltration analysis is sufficient to analyze rainfall-induced landslides. However, those studies are based on homogeneous soils, i.e. soil spatial variability is not considered in the analysis. This paper investigates the significance of slope inclination and lateral flow on the stability of an infinite slope with spatially varying soil in the depth direction. Only the saturated hydraulic conductivity of the soil is assumed to be spatially varying in the form of a stationary lognormal random field. It was found that the impact of the inclination on the pressure head and the factor of safety is not significant. However, the impact on the probability of slope failure is significant for some examples studied in this paper. © 2011 ASCE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1061/41183(418)72
dc.sourceScopus
dc.subjectGeohazards
dc.subjectInfiltration
dc.subjectLandslides
dc.subjectRainfall
dc.typeConference Paper
dc.contributor.departmentCIVIL & ENVIRONMENTAL ENGINEERING
dc.description.doi10.1061/41183(418)72
dc.description.sourcetitleGeotechnical Special Publication
dc.description.issue224 GSP
dc.description.page704-711
dc.description.codenGSPUE
dc.identifier.isiutNOT_IN_WOS
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