THREE DIMENSIONAL STUDY OF LANDSLIDE DAM FAILURE DUE TO SUDDEN SLIDING

抄録

In this study, the conventional water-phase (one-phase) as well as water-air two-phase seepage flow numerical simulation models has been developed individually for seepage calculation inside the body of landslide dam. Janbu’s simplified method as well as extended Spencer method has been used in slope stability analysis. Simulation results obtained by two-phase seepage flow model and extended Spencer method are comparatively in good agreement with the experimentally observed results than that of conventional seepage flow model and Janbu’s simplified method. The two-phase seepage flow phenomenon in the dam analysis has been verified by performing one dimensional numerical and experimental analysis.