Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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Stability Analysis of Slope Considering Infiltration of Behind Ground

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  • Shin, Jong-Ho (Dept. of Civil Engineering, Konkuk University) ;
  • Kim, Hak-Moon (Dept. of Civil and Environmental Engineering, Dankook University) ;
  • Jang, Kyung-Jun (Dept. of Civil and Environmental Engineering, Dankook University) ;
  • Chae, Sung-Eun (Dept. of Civil Engineering, Konkuk University)
  • 신종호 (건국대학교 토목공학과) ;
  • 김학문 (단국대학교 토목환경공학과) ;
  • 장경준 (단국대학교 토목환경공학과) ;
  • 채성은 (건국대학교 토목공학과)
  • Published : 2009.03.27
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Abstract

Previous research on the slope failure has mainly reported that most of the slope failures occur due to surface rainfall infiltration in the rainy season. A slope of which surface is protected by shotcrete or plants, can also fail due to increase in pore water pressure from the ground water flow beneath the surface, rather than from the surface. In this study such case of slope behavior is investigated using the model test and numerical method including strength reduction method. Hydraulic boundary conditions of the slopes is considered using coupled numerical scheme. The failure mechanism of the slope is investigated and the effect of pore water pressure on slope safety is identified. Increase in pore water pressure due to lateral infiltration has significantly reduced the stability of slope.

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