Instrumentation of an unsaturated residual soil slope

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Instrumentation of an unsaturated residual soil slope

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dc.contributor.author Gasmo, J. M.
dc.contributor.author Hritzuk, K. J.
dc.contributor.author Rahardjo, Harianto
dc.contributor.author Leong, Eng Choon
dc.date.accessioned 2011-12-05T07:19:23Z
dc.date.available 2011-12-05T07:19:23Z
dc.date.copyright 1999
dc.date.issued 2011-12-05
dc.identifier.citation Gasmo, J. M., Hritzuk, J. K., Rahardjo, H., & Leong, E. C. (1999). Instrumentation of An Unsaturated Residual Soil Slope. Geotechnical Testing Journal, 22(2), 134-143.
dc.identifier.uri http://hdl.handle.net/10220/7325
dc.description.abstract The stability of slopes has become a major concern in areas that experience frequent periods of heavy rainfall such as the tropical areas of Southeast Asia. Previous research has indicated that rainfall has a detrimental effect on the stability of residual soil slopes. The reason for this is that the additional shear strength that exists in unsaturated soils due to negative pore-water pressures is lost as a result of rainwater infiltration into the soil. To study the infiltration characteristics in slopes, a residual soil slope in Singapore was instrumented. The instruments were used to determine the changes in the pore-water pressure distribution throughout the slope in response to evaporation and infiltration. Tensiometers were used to measure negative pore-water pressures, piezometers were used to measure the groundwater level, and a rain gage was used to measure rainfall intensities on the slope. An automated data acquisition system was used to collect the data from the slope. This paper describes the instrumentation program and the procedures associated with the installation of the instruments into the slope. Typical measurement data collected from the slope are presented, and their interpretations are discussed.
dc.language.iso en
dc.relation.ispartofseries Geotechnical testing journal
dc.rights © 1999 ASTM
dc.subject DRNTU::Engineering::Civil engineering::Geotechnical
dc.title Instrumentation of an unsaturated residual soil slope
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.1520/GTJ11272J
dc.description.version Accepted version

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