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http://dx.doi.org/10.7843/kgs.2014.30.10.45

Numerical Analysis and Comparison of the Influence of Safety Factor Variations in Slope Stability During Rainy Season  

Song, Pyung-Hyun (Soil & Foundations)
Baek, Yong (KICT)
You, Byung-Ok (Expressway & Transportation Research Institute, Korea Expressway Corporation)
Hwang, Young-Cheol (Dept. of Civil Engrg., Sangji Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.30, no.10, 2014 , pp. 45-54 More about this Journal
Abstract
Many studies have been made on investigation, design, explanation and treatments etc. to minimize slope failure. However, the problem is that failures of cutting slope and natural slope due to Typhoon and localized heavy rainfall are still not reduced. It is difficult to treat the problem by only strengthening the design standard. And it is very necessary to carry out design and safety analysis under the most suitable conditions considering foundation and rainfall characteristics. In this study, variations of safety factor were discussed from different aspects to investigate the influence of different parameters of rainfall and analysis conditions. Rainfall and foundation conditions are supposed to be the most sensitive parameters to slope stability, and numerical analysis were performed by changing parameters of the two conditions. Rainfall behavior is based on the domestic statistical rainfall and foundation condition is selected as unsaturated soils. Study results show that, application of rainfall characteristics in different area and parameters of unsaturated soils are responding sensitively to variations of slope safety. Therefore, the input parameters should be fully examined when performing the practical design.
Keywords
Seepage analysis; Rainfall intensity; Rainfall duration; unsaturated soil; Parameter of stability;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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