Stability Analyses of Rainfall Induced Landslides
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VIEW THE REPLYPublication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 130, Issue 4
Abstract
The slope stability issues concerning rainfall induced slope failures are investigated and presented. Specifically, the effect of both negative and positive pore water pressures on the stability of initially unsaturated slopes are carefully explained and coupled with infinite slope analysis methods in order to present a predictive formulation of slope failures that occur as a result of rainfall events. The formulation serves as a baseline analysis method for evaluating potentially unstable soil slopes that are subject to surface infiltration and explains the various triggering mechanisms that may occur based on individual combinations of the slope geometry, soil strength, and infiltration parameters. A procedural method is outlined for utilizing the analytical formulation to predict the change in the factor of safety for a slope subject to infiltration and a detailed analysis of a case study is presented to verify the method. Quantitative statements are made concerning the time and depth of failure in relationship to the soil, slope, and rainfall parameters.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 130 • Issue 4 • April 2004
Pages: 362 - 372
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jul 22, 1999
Accepted: Oct 20, 2002
Published online: Mar 15, 2004
Published in print: Apr 2004
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