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http://dx.doi.org/10.12652/Ksce.2022.42.3.0359

Three-dimensional Stability Analysis of Landslides in Unsaturated Soils: A Case Study  

Kim, Seong Jin (Yeungnam University)
Oh, Seboong (Yeungnam University)
Yoo, Young Geun (Korea University)
Shin, Ho Sung (University of Ulsan)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.42, no.3, 2022 , pp. 359-369 More about this Journal
Abstract
In slope stability analysis for landslides, mountains have various slopes and geographical features, and hence it is necessary to estimate stability using rigorous analysis methods. In this study, after the analysis of infiltration behavior through unsaturated layers due to rainfall, the stability of landslide was estimated to account for the variation of pore water pressures. In the analysis of slope stability, a three-dimensional slope analysis was compared with an infinite slope analysis in a case study of terrain in which an actual landslide occurred. In the three-dimensional slope stability analysis, it was found that the location of the failure and the failure area were predicted accurately based on the detailed geological information despite the variation of geographical features.
Keywords
Unsaturated soil; Effective stress; Three-dimensional stability analysis; Landslides;
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