ANALYSIS ON THE STABILITY OF ROCK SLOPE WITH SURFACE INFILTRATION
有地表入渗的岩坡稳定性分析

An extended Mohr-Coulomb failure criterion is used to allow for shear strength variations as a result of changes of matrix suction. The landslide mechanism of rock slope under the influence of surface infiltration is discussed. By means of the limit equilibrium theory of rigid body, an analysis method on rock slope stability considering surface infiltration, which is called improved non-equilibrium push transmission method, is proposed and a program for checking the stability of rock slope with the function of matrix suction and temporary additional water load considered, is worked out. This program is applied to the analysis on rock slope stability with the presence of surface infiltration. The results show that the analysis method and program in this paper are reasonable and reliable and surface infiltration will bring harmful influence on the stability of rock slope.