中文摘要：

地下矿物开采过程中,地层中的原始地应力场遭到破坏,造成覆岩应力重新分布,进而引起了覆岩的移动与破断形成了裂隙场。基于相似材料模拟试验得出覆岩裂隙演化的一般规律,即裂隙场的物理特征;利用有限元数值模拟试验,研究在煤层动态开采过程中,上覆岩体的应力分布状态,并联系裂隙场的物理特征作出了进一步的解释。

英文摘要：

in the redistribution of overburden stress and then caused the movement of overlying strata and the formation of the fracture field. Based on the simulation test of similar materials, the general law of the evolution of the overlying rock is obtained, that is the physical characteristics of the crack field. By using the finite element numerical simulation test, the stress distribution state of overlying rock mass was studied during the dynamic mining of coal seam, and further explanations were given in combination with the physical characteristics of the fracture field.