Analysis on Seepage and Slope Stability of Zhanggou Homogeneous Earth-Rockfill Dam

Zhanggou homogeneous earth-rockfill dam has the problems of collapsed upstream dam surface,obvious crept,cracked and deformed downstream slope and seepage in right abutment since putting into operation.The dam seepage was analyzed by two-dimensional finite element software.The results show that the dam seepage is unstable;the saturation line in maximum height of section is higher.All these things will cause penetration stability destruction.The slope stability safety factor is calculated by Sweden method,simplified Bishop method,thrust transfer method and Morgenstern method under various conditions.And the scope of application of these methods is compared.