Mechanical Modeling of Progressive Failure of Tieshansi Slope

With the rapid development of china economy, the mining environment improvement is a hot research topic. The traditional unbalanced thrust method is generalized, the partial strength reduction method (PSRM), the perfect elasto-plastic model (PEPM) and the complete process constitutive model (CPCM) are employed; the progressive failure process of a slope is simulated by the proposed generalized slice method; the safety factor of the extended slice method is closely related to deformation of a slope, the characteristics of the critical stress state movement can also revealed by the proposed generalized slice method. Taking the Tieshansi slope of Huangshi City as an example, the evolution characteristics of the physical and mechanical variables in progressive failure process of the slope are revealed by the proposed generalized unbalanced thrust method with the two sorts numerical simulations (PSRM with PEPM and CPCM); the search results show that: The proposed generalized slice methods can describe the progressive failure process of the Tieshansi slope.