Transient stability analysis of dishuiya landslide No.1 under rainfall condition

Utilizing seepage coupled slope surface runoff theory,the seepage field of Dishuiya Landslide No.1 affected by the infiltrating process of rainfall is simulated according to the monitoring daily rainfall data in May.Based on generalized limit equilibrium method(abbreviated.GLE),the safety factor of the landslide is computed by means of unsaturated soil strength theory,respectively utilizing strength parameters under raw or saturated conditions.Simultaneously,its stability is evaluated,which offers a reference for transient stability analysis.Then,transient stability of the landslide is calculated and analyzed by means of calling seepage and runoff results at different rainfall step.Moreover,the time and space effect of the landslide’s stability caused by rainfall infiltrating into the slope body is explored.Meanwhile,soil hydraulic property and slope surface runoff affected by rainfall are presented.