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矿山地下开采过程中,由于采出了大量的矿体,上部岩体失去支撑,破坏了原有的平衡,因此岩体就破裂、变形,地表上则表现为塌陷、裂缝以及肉眼难以分辨的地面变形,矿坑内则表现为片帮、冒顶、底鼓等。因此研究矿山岩体的破裂变形规律、确定矿山崩落角即查明破裂变形的范围和规模,对于工程布署,井巷掘进中冒顶、片帮事故的预报和加固
During the process of underground mining, due to the large amount of ore bodies produced, the upper rock mass loses its support and destroys the original balance, so the rock mass ruptures and deforms, and the surface shows subsidence, cracks and hard-to-distinguish ground Deformation, the performance of the mine for the film gang, roof fall, the bottom of the drum. Therefore, the study of rock mass rupture deformation rules to determine the mine collapse angle that is to identify the scope and scale of fracture deformation, for the deployment of engineering, roadway roof collapse, sheet metal accident prediction and reinforcement