Analysis of mining impact and research on mining optimization design of 50207 working face in Hejiata Coal Mine

Based on the geological and mining conditions of the 50207 working face of Hejiata Coal Mine, the mining impact calculation is carried out under different working conditions to address the problem of coal pressure in village houses on the ground. Based on the analysis of calculation results, it is believed that under the premise that full thickness mining cannot meet the safe operation of residential buildings on the ground, the optimized mining method of partially limiting thickness mining (2.4 m) within the working face can achieve a focus on residential safety of buildings on the ground. It can provide reference for coal mining under similar mining conditions.