The Application of FLAC Software in Stability Analysis of Highway Slope Reinforced by Prestressed Anchor Cable

rigid limit equilibrium method and numerical simulation of FLAC software based on strength reduction method was used in this paper, and the stability of a highway slope before and after the reinforcement by prestressed anchor cable was analyzed. The calculation results showed that, the stability of designed excavated slope could not meet the requirements, while the stability of reinforced sloped by prestressed anchor cable could. The sliding surface of the slope and the corresponding stability factor could be obtained in two ways, but the numerical simulation of FLAC software considered the material deformation, so the calculation results was smaller than the results of rigid limit equilibrium method.