Calculation of Slope Stability Safety Coefficient Based on FLAC^3D

Safety coefficient is an important standard of slope stability criterion，which is always the key point of the slope stability analysis to get the corresponding safety coefficient accurately and quickly.This paper establishes the nonlinear relationship of safety coefficient and physical and mechanical parameters of side slope by combining with least square method and strength reduction method and basing on FLAC3D calculation software.It also proposes a fast search method to get the slope safety coefficient and carries verification about it.