Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2008.10a
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- Pages.957-965
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- 2008
Design Rainfall for Slope Stability Analysis and Its Application
사면안정해석을 위한 설계강우 산정과 적용방안
- Kim, Kyung-Suk (Korea Expressway Corporation) ;
- Jang, Hyun-Ick (Korea Expressway Corporation) ;
- Chung, Choong-Ki (Dept. of Civil & Environmental Eng. Seoul Nat. Univ.)
- Published : 2008.10.10
Abstract
Recently, slope stability analysis in current design criteria is criticized for its unrealistic assumption of groundwater table and slope stability analysis incorporating seepage analysis considering rainfall is gaining a recognition as an alternative. However, a reasonable method for determining the rainfall used in the seepage analysis has not yet been established. Rainfall input for seepage analysis is a time series of rainfall and is similar to the hyetograph which is usually obtained from hydrology. In this paper a method to obtain the hyetograph from the intensity-duration-frequency is proposed. The resulting hyetograph can be used in the in the slope design stage. Also some considerations for practical application of slope stability analysis considering the rainfall is included.