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为获取云驾岭矿区合理的岩层力学参数,选择了数值模拟几个关键参数作为反演因子,对各因子的变化水平进行了合理划分。采用正交试验法设计了试验方案,以地表走向观测线最大下沉值作为监测指标。通过逐一模拟计算及统计分析,得出了各因子水平的改变对模拟结果影响的显著性程度,确定了反演因子的合理组合,并通过实验进行了验证。
In order to obtain reasonable mechanical parameters of rock strata in Yunjialing mining area, several key parameters of numerical simulation were selected as inversion factors, and the level of variation of each factor was reasonably divided. Orthogonal test method was used to design a test scheme, taking the maximum subsidence of observation line of surface strike as the monitoring index. Through the simulation and statistical analysis one by one, the significant degree of influence of the change of each factor level on the simulation results is obtained, the reasonable combination of the inversion factors is determined, and the experiment is validated.