Title: Comparison of two kinds of finite element methods for slope stability analysis under plane strain condition
Abstract: The two kinds of definitions of safety factor in slope stability analysis by FEM(finite element method) were discussed,and it was indicated that the two definitions,which were based on the conception of strength reduction,were consistent with the definition in limit equilibrium method.In the analysis of examples,D-P yield criterion which is transformed from and matches precisely M-C criterion is used to analyze the stability of natural slope(homogeneous slope,undrained clay slope with a weak foundation layer,undrained clay slope with a foundation layer including a thin weak layer) under the plane strain condition.The results show that the shapes of critical slip surface and the magnitude of safety factor are very similar with those obtained by the two kinds of methods.It is also pointed out that the slip surface stress analysis method does not suit with calculating the safety factor of the instability slope.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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