降雨要素对低渗透性土质边坡稳定性影响分析

Based on saturated-unsaturated seepage theory, used the theory of shear strength of unsaturated soil, this paper studies the low permeability soil side slope on the effect of rainfall essential factor. Rainfall Intensity, rainfall duration, type of rainfall and the time interval between antecedent rainfall and main period of rainfall are the effects it considerated. With rain intensity and rainfall duration increased, the soil side slope stability factor is decreased; In the condition of short-term rainfall in the low permeability soil side slope,the same rainfall amount,and peaked type of rainfall,more times at the peak, the soil side slope stability factor is decreased.