Hydrologic behaviour of residual soil slopes in Singapore

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Hydrologic behaviour of residual soil slopes in Singapore

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dc.contributor.author Rezaur, R. B.
dc.contributor.author Rahardjo, Harianto
dc.contributor.author Leong, Eng Choon
dc.contributor.author Lee, T. T.
dc.date.accessioned 2011-11-29T09:12:16Z
dc.date.available 2011-11-29T09:12:16Z
dc.date.copyright 2003
dc.date.issued 2011-11-29
dc.identifier.citation Rezaur, R. B., Rahardjo, H., Leong, E. C., & Lee, T. T. (2003). Hydrologic Behaviour of Residual Soil Slopes in Singapore. Journal of Hydrologic Engineering, 8(3), 133-144.
dc.identifier.uri http://hdl.handle.net/10220/7318
dc.description.abstract Monitoring hydrologic responses of slopes is critical for advancing hillslope hydrologic studies. Storm- and time-based continuous hydrologic responses from three instrumented hillslopes in Singapore were monitored for a period of 420 days to observe the impact of rainfall on the pore-water pressure changes and runoff generation. Analyses of the hydrologic data indicate that only about 37% of the annual rainfall events are capable of producing runoff, and a threshold rainfall of about 10 mm is required to produce runoff. The seasonal distribution of pore-water pressures showed that the slopes experience high matric suctions during dry periods that are comparable to matric suctions observed in other tropical climates, and positive pore-water pressures during wet periods, that are higher than in other geographic locations. A high correlation between the increase in pore-water pressure and the daily rainfall may provide a convenient estimate of the increase in pore-water pressure due to the daily rainfall. The variability of hillslope hydrologic responses from storm to storm is distinctive when compared with previous results at other geographic locations.
dc.language.iso en
dc.relation.ispartofseries Journal of hydrologic engineering
dc.rights © 2003 ASCE
dc.subject DRNTU::Engineering::Civil engineering::Geotechnical.
dc.title Hydrologic behaviour of residual soil slopes in Singapore
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.1061/(ASCE)1084-0699(2003)8:3(133)
dc.description.version Accepted version

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