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http://dx.doi.org/10.7843/kgs.2018.34.4.5

A Study on Analytical Solution of Unsaturated Infinite Slope Stability  

Chae, Yu-Mi (Dept. of Civil Engrg., Dongshin Univ.)
Kim, Jae-Hong (Dept. of Civil Engrg., Dongshin Univ.)
Jeong, Young-Hun (Wonbin Engrg. Co., LTD.)
Kim, Tae-Heon (Construction Quality Testing Center Co., LTD.)
Publication Information
Journal of the Korean Geotechnical Society / v.34, no.4, 2018 , pp. 5-11 More about this Journal
Abstract
In conventional analytical solutions for rainfall-induced soil slope stability, the Green-Ampt (1911) equation for estimating the saturation depth and the Skempton & DeLory (1957) equation for calculating the infinite slope shallow failure were compared with the numerical analysis to confirm the error. In the simple evaluation of the reason of soil slope instability due to rainfall using the conventional equations, there are many errors and, overestimation or underestimation of the calculation results. In this study, the equation consisting of the results obtained from infiltration analysis on unsaturated soil slope is proposed by applying the average range of the strength parameters of the granite weathered soils, and its reliability is verified by comparing with the numerical analysis results. The developed equation can be used easily in various fields for the estimation of slope safety factor by checking the rainfall duration and saturation depth.
Keywords
Infinite soil slope; Analytical equation; Unsaturated seepage analysis; Factor of safety;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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