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Catastrophic failure mechanism of rock masses system and earthquake prediction based on percolation theory

rock Mechanics Bulletin 2022年第1期1卷 119-125页

作者： Zhaoxing Lv Yangsheng Zhao Zijun Feng Key Laboratory of In-situ Property-improving Mining of Ministry of Education Taiyuan University of TechnologyTaiyuan030024China College of Mining Engineering Taiyuan University of TechnologyTaiyuan030024China

The failure of rocks is a complicated process as the mechanical properties of the rock are governed by loading history and cumulative *** geometric aspects of fractures,such as the size and shape of the fractures,the spatial distribution of the fracture networks,and the relations among these aspects also depend on the loads acting on rock *** general,the fractures are randomly generated in space which is difficult to be described using mathematical *** this paper,the failure processes of rock have been analyzed using the percolation *** results indicate that the failure process of rock is a transition from a stable state to an unstable *** phenomenon is essentially consistent with the phase transition in the percolation *** on this consistency,a theoretical model of percolation for earthquake prediction is proposed.A large number of seismic data provided strong evidence in support of the reliability and applicability of this model.

关键词： rock mass system Failure process Fracture Earthquake prediction Percolation theory

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A brief introduction to disaster rock mass mechanics

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Geohazard Mechanics 2023年第1期1卷 53-57页

作者： Yangsheng Zhao Zijun Feng Key Laboratory of In-situ Property-improving Mining of Ministry of Education Taiyuan University of TechnologyTaiyuan030024China College of Mining Engineering Taiyuan University of TechnologyTaiyuan030024China

rock mass mechanics can be classified into engineering rock mass mechanics and disaster rock mass mechanics based on science and *** conception,object,scientific essence and application were *** connotation,studying method and theoretical framework of disaster rock mass mechanics were *** rock mass mechanics is a strongly nonlinear discipline which is a strong tool to study natural and artificially-induced *** rock mass system where disasters happen exhibits extremely spatial-temporal nonlinearity in the critically unstable ***,the potentially effective prediction and forecasting of disasters depends on statistical analysis of highly probable *** direction of efforts for predicting and forecasting disasters could be to find the quantitative or semi-quantitative relationship between physical and biological information and instability of rock mass system.

关键词： Disaster rock mass mechanics Engineering rock mass mechanics Nonlinear rock mass system Disaster prediction and forecast

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