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논문 기본 정보

자료유형
학술저널
저자정보
Song, Young-Suk (Korea Institute of Geoscience and Mineral Resources, Geological Hazards Department) Hwang, Woong-Ki (Korea Maritime and Ocean University, Department of Civil Engineering)
저널정보
대한지질공학회 The Journal of Engineering Geology 지질공학 제24권 제1호
발행연도
2014.1
수록면
1 - 8 (8page)

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Numerical stability analysis of an unsaturated infinite slope under rainfall-induced infiltration conditions was performed using generalized effective stress to unify both saturated and unsaturated conditions The soil-water characteristic curve (SWCC) of sand with a relative density of 75% was initially measured for both drying and wetting processes. The hydraulic conductivity function (HCF) and suction stress characteristic curve (SSCC) were subsequently estimated. Under the rainfall-induced infiltration conditions, transient seepage analysis of an unsaturated infinite slope was performed using the finite element analysis program, SEEP/W. Based on these results, the stability of an unsaturated infinite slope under rainfall-induced infiltration conditions was examined in relation to suction stress. According to the results, the negative pore-water pressure and water content within the slope soil changed over time due to the infiltration. In addition, the variation of the negative pore-water pressure and water content led to a variation in suction stress and a subsequent change in the slope's factor of safety during the rainfall period.

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