LI Shuai,SU Yonghua,DU Junwang.Research on Instability Criterion of Slope Project based on Mutation Characteristics[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(06):852-859.
LI Shuai,SU Yonghua,DU Junwang.Research on Instability Criterion of Slope Project based on Mutation Characteristics[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(06):852-859. DOI: 10.13409/j.cnki.jdpme.2020.06.002.
Research on Instability Criterion of Slope Project based on Mutation Characteristics
The exchange of mass, energy as well as information occurs incessantly between the slope system and the external environment, resulting in nonlinearity and discontinuity characteristics of in the evolutionary process of slope failure. These characteristics are important reasons why the stability of slope engineering is difficult to be assessed accurately. Combining with nonlinear mutation theory, the potential function was first set as the response variable and the fracture zone length was set as a control variable, then the analytical mutation failure model of the slope was established. The model features and mechanical mechanism of slopes were further analyzed. The critical length of the crack zone, which results in slope failure, was solved. The instability criterion of the slope was quantized. The research may provide a helpful reference for slope stability evaluation. The results of the case studies show that the error between results acquired by the proposed method and actual data is acceptable. The feasibility of the proposed method is verified.
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