Program Design and Application of Strip Mining of Xima Coal Mine Under Village

In order to solve the problem of coal mining under the village of Xima Coal Mine, coal mining is rationally adopted to reduce the impact of multiple coal mining on the surface. Based on the occurrence of 12^# coal seam in the mine, the method of strip coal mining under the building is determined by the pressure arch theory, and the mining width and leaving width of strip coal pillar are rationally designed to ensure long-term safety and stability of coal pillar. At the same time, the FLAC^3D program is used to simulate the strata stability of mining area and reveal the movement law and creep deformation characteristics of overlying strata during mining. The results show that the deformation of surface subsidence is stable as the time going on, and the distribution of stress field of the overlying strata in the designed mining area is rebalanced and the whole is in a steady state.