TY - JOUR
T1 - Effects of Rainfall Characteristics on the Stability of Tropical Residual Soil Slope
AU - Rahardjo, Harianto
AU - Satyanaga, Alfrendo
AU - Leong, Eng Choon
N1 - Publisher Copyright:
© 2016 The Authors.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2016/9/12
Y1 - 2016/9/12
N2 - Global climate change has a significant impact on rainfall characteristics, sea water level and groundwater table. Changes in rainfall characteristics may affect stability of slopes and have severe impacts on sustainable urban living. Information on the intensity, frequency and duration of rainfall is often required by geotechnical engineers for performing slope stability analyses. Many seepage analyses are commonly performed using the most extreme rainfall possible which is uneconomical in designing a slope repair or slope failure preventive measure. In this study, the historical rainfall data were analyzed and investigated to understand the characteristics of rainfall in Singapore. The frequency distribution method was used to estimate future rainfall characteristics in Singapore. New intensity-duration-frequency (IDF) curves for rainfall in Singapore were developed for six different durations (10, 20, 30 min and 1, 2 and 24 h) and six frequencies (2, 5, 10, 25, 50 and 100 years). The new IDF curves were used in the seepage and slope stability analyses to determine the variation of factor of safety of residual soil slopes under different rainfall intensities in Singapore.
AB - Global climate change has a significant impact on rainfall characteristics, sea water level and groundwater table. Changes in rainfall characteristics may affect stability of slopes and have severe impacts on sustainable urban living. Information on the intensity, frequency and duration of rainfall is often required by geotechnical engineers for performing slope stability analyses. Many seepage analyses are commonly performed using the most extreme rainfall possible which is uneconomical in designing a slope repair or slope failure preventive measure. In this study, the historical rainfall data were analyzed and investigated to understand the characteristics of rainfall in Singapore. The frequency distribution method was used to estimate future rainfall characteristics in Singapore. New intensity-duration-frequency (IDF) curves for rainfall in Singapore were developed for six different durations (10, 20, 30 min and 1, 2 and 24 h) and six frequencies (2, 5, 10, 25, 50 and 100 years). The new IDF curves were used in the seepage and slope stability analyses to determine the variation of factor of safety of residual soil slopes under different rainfall intensities in Singapore.
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U2 - 10.1051/e3sconf/20160915004
DO - 10.1051/e3sconf/20160915004
M3 - Conference article
AN - SCOPUS:85013660485
SN - 2555-0403
VL - 9
JO - E3S Web of Conferences
JF - E3S Web of Conferences
M1 - 15004
T2 - 3rd European Conference on Unsaturated Soils, E-UNSAT 2016
Y2 - 12 September 2016 through 14 September 2016
ER -
