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现场量测位移的分析法是通过测量开挖硐室、隧道、井巷等地下工程的周边和围岩内的相对位移和绝对位移值来反推岩体的原始地应力场及岩体力学参数。利用线弹性有限元位移反分析程序计算出某石棉矿区的初始地应力场值,并得出较大的水平应力,这正是该矿地压严重显现原因之一。
The on-site measuring displacement method is to measure the original ground stress field and the mechanical parameters of rock mass by measuring the relative displacements and absolute displacements in the surrounding and surrounding rock of the underground cavern, tunnel, . The linear elastic finite element displacement back analysis program was used to calculate the initial geostress field of a certain asbestos mining area and obtain the larger horizontal stress. This is exactly one of the reasons for the serious occurrence of the ground pressure in this mine.