Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/101450
Title: Hydrologic behaviour of residual soil slopes in Singapore
Authors: Rahardjo, Harianto
Leong, Eng Choon
Rezaur, R. B.
Lee, T. T.
Keywords: DRNTU::Engineering::Civil engineering::Geotechnical
Issue Date: 2003
Source: 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.
Series/Report no.: Journal of hydrologic engineering
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.
URI: https://hdl.handle.net/10356/101450
http://hdl.handle.net/10220/7318
DOI: 10.1061/(ASCE)1084-0699(2003)8:3(133)
Rights: © 2003 ASCE
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

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