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- W2364485680 abstract "An example slope is analyzed by using the elastoplastic finite element method(FEM) based on the shear strength reduction(SSR) technique and its overall safety factor is obtained by three yield criteria respectively,i.e.,the criterion of non-convergence by FEM,the criterion of equivalent plastic strain or connectivity of plastic zone,and the criterion of abrupt change of the relationship between the displacement(or displacement increment) and the reduction coefficient at a certain characteristic location.It is founded out that the overall safety factor,based on the above three instability criteria,will be consistent with each other,if their Young's modulus and Poisson's ratio are adjusted simultaneously in the process of computing the safety factor with the SSR.And then,the safety factor calculated in the circumcircle yield criterion is transformed to that in Mohr-Coulomb equivalent area circle criterion,and compared to the safety factor of Spencer's limit equilibrium method and sliding plane.It is shown that the safety factor and the sliding plane of the SSR are fairly close to the results of the traditional Spencer's limit equilibrium method.So the applicability of the method proposed in this paper is clearly exhibited.Finally,the influence of Young's modulus and Poisson's ratio on the overall safety factor computed on the above three instability criteria is also analyzed." @default.
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- W2364485680 date "2009-01-01" @default.
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- W2364485680 title "Discussion on analysis of slope instability criterion by strength reduction FEM" @default.
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