保护层开采对下覆岩层变形特征影响研究

Study of Influence on Underlying Rock Deformation Characteristics of Mining Protective Layer

基于某矿保护层工作面下覆岩层所具有的物理力学参数和地质特征,建立了煤层数值计算模型。通过施加应力进行初始化,应力平衡后,监测下覆岩层应力场及变形场的变化特性。

Based on the physico-mechanical parameters and geological characteristics of the strata beneath a working face of a mine, a numerical calculation model for the coal seam was established. The characteristics of stress and deformation of the underlying strata are monitored when the initial stress reached the equilibrium state.