论文部分内容阅读
针对现有损伤变量计算方法的局限性,以潘二矿11223工作面3~#煤开采为例,提出一种基于FLAC~(3D)数值模拟软件,结合岩石力学参数计算底板岩层损伤变量的方法。11223工作面3#煤底板岩层损伤变量值为0.785,进而计算得出底板采动破坏深度为20.27 m,与现场实测结果19 m较为接近,表明利用FLAC~(3D)计算损伤变量具有一定的合理性,为确定损伤变量进而计算底板破坏深度提供了一种较为简便的方法。
Aiming at the limitations of the existing calculation methods of damage variables, a method based on FLAC 3D numerical simulation software combined with rock mechanics parameters to calculate the damage variables of floor rock strata is presented. . 11223, the damage variable value of 3 # coal floor rock face is 0.785, and then the depth of mining failure of bottom plate is 20.27 m, which is close to the field measurement result of 19 m, which shows that it is reasonable to calculate the damage variable by using FLAC 3D In order to determine the damage variables and then calculate the depth of the destruction of the floor provides a more convenient method.