Method for Analyzing the Slope Stability Based on Potential Slip Line Theory

A method used to analyze the two-dimension or three dimension slope stability is presented in this paper. According to the stress analysis results of elastic-plastic finite element method, the method makes sure of potential slip surfaces, the most dangerous surfaces and stability safety factor of slope by means of numerical integration, and the method has rigor theoretical basis. Through many examples and engineering tests, it shows that slope stability safety factor and the most dangerous surface using general way are quite different from real fact, and that the proposed method is proved correct.