论文部分内容阅读
根据冲击地压发生的力学条件和地质条件,引入(Ruina,1983年)单状态变量本构模型(Singlestatevariablemodel,SSVM)对冲击地压的动力学行为和演化行为进行了描述。研究表明模型中参数K,b对冲击地压系统动力学行为和状态变量演化行为贡献较大,而系统动力学行为和演化行为对j,f初值的敏感性相对较低。模型模拟了冲击地压系统的粘滑特性和冲击地压系统的动力失稳过程,较好地解释了冲击地压的发生机理,为冲击地压失稳破坏的预测预报提供了理论依据。
According to the mechanical and geologic conditions of rockburst, the dynamic behavior and evolutionary behavior of rockburst are described by introducing a single state variable constitutive model (Ruina, 1983). The results show that the parameters K and b contribute more to the dynamic behaviors and the evolution of state variables in the model, while the sensitivity of system dynamics and evolutionary behavior to the initial value of j and f is relatively low. The model simulates the stick-slip characteristics of rockburst and the dynamic instability of the rockburst system. It explains the mechanism of rockburst and provides a theoretical basis for the prediction and prediction of rockburst failure.