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A Study of Stability Analysis on Unsaturated Weathered Slopes Based on Rainfall-induced Wetting  

김재홍 (연세대학교 공과대학 토목공학과)
박성완 (한국건설기술연구원)
정상섭 (연세대학교 공과대학 토목공학과)
유지형 (경일대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean Geotechnical Society / v.18, no.2, 2002 , pp. 123-136 More about this Journal
Abstract
The infiltration of prolonged rainfall causes shallow slope failures on surficial slopes. Experiments performed on soil-water characteristic curves in weathered soils of three different types(SW, SP, SM) were used to construct a general equation for the soil-water characteristic curve. Based on this, the saturated depth by Green & Ampt model was compared with the results of numerical analyses and the range of application of Green & Ampt model was evaluated. It was found that the saturated depth occurred by infiltration on the surface of slopes has an inf1uence on the surficial stability of slopes md, the stability analysis of unsaturated soils calculated by using the soil-water characteristic curve of weathered soils was found to be a proper analysis for shallow slope failures due to rainfall.
Keywords
Green & Ampt model; Infiltration Shallow slope failure; Soil-water characteristic curve; Unsaturated soil;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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