Numerical Simulation of Optimal Layout of Roof Gas High-level Drainage Roadway

According to the laws of overlying strata movement above gob and gas migration, combined the scene of Lu'an Group Wuyang Mine 7801 fully mechanized caving face, by using FLAC^3D to analyze the relative displacement between the roof and floor, the relative displacement between the left side and right side, the maximum stress, the laws of deformation and failure of high-level drainage roadway was determined under the mining influence, then the position of high-level drainage roadway was optimized.