Numerical analysis of rainfall infiltration in the slope with a fracture

With the finite volume method, a 2D numerical model for seepage in unsaturated soil has been established to study the rainfall infiltration in the fractured slope.The result shows that more rain may infiltrate into the slope due to existing fracture and then the pore pressure rises correspondingly. Very probably, it is one of the crucial factors accounting for slope failure. Furthermore a preliminary study has been conducted to investigate the influence of various fracture and rainfall factors such as the depth, width and location of a crack, surface condition, rainfall intensity and duration. Pore pressure and water volumetric content during the transient seepage are carefully examined to reveal the intrinsic mechanism.

作 者： FAN Ping LIU Qingquan LI Jiachun SUN Jianping   作者單位： Division of Engineering Science, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080,China  刊 名： 中國科學E輯（英文版）  SCI 英文刊名： SCIENCE IN CHINA SERIES E(TECHNOLOGICAL SCIENCES)  年，卷(期)： 2005 48(z1)  分類號： P4  關鍵詞： fracture slope   rainfall infiltration   numerical simulation  

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