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http://dx.doi.org/10.5389/KSAE.2007.49.1.057

Saturation Depth and Slope Stability considering Unsteady Rainfall in Natural Slope  

Kim, Sang-Hoon (서울대학교 대학원)
Kim, Seong-Pil (서울대학교 농업생명과학연구원)
Son, Young-Hwan (서울대학교 농업생명과학연구원)
Heo, Joon (서울대학교 대학원)
Chang, Pyoung-Wuck (서울대학교 지역시스템공학과)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.49, no.1, 2007 , pp. 57-65 More about this Journal
Abstract
In Korea, most landslides occurr during the rainy season and have shallow failure planes parallel to the slope. For these types of rainfall-induced failures, the most important factor triggering slope unstability is decrease in the matric suction of unsaturated soils with increasing saturation depth by rainfall infiltration. For this reason, estimation of cumulative infiltration has a significance. In this study, infiltration rate and cumulative infiltration are estimated by using both Mein & Larson model based on Green-Ampt infiltration model and using modified Mein & Larson model to which unsteady rainfall is applied. According to the results, the modified model is more reasonable than Mein & Larson method itself in estimation of infiltration rate and saturation depth because of considering real pending condition.
Keywords
Mein & Larson model; Rainfall infiltration; Deteminstic model; Landslide;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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