Abstract:
The No. 5 coal seam in 2501 mining area of Huating Coal Mine is a thick coal seam with strong impact tendency. During the mining process of the upper layer working face, the rock burst was abnormal violent, which caused heavy casualties and economic losses. In order to protect against rock burst, we propose reasonable deployment and optimum design during driving construction of coal seam. During the first face layout of the lower layer, we design the mining sequence of working face, the cutting hole arrangement, the design of stop-working line, the working face arrangement, and the parameters of supporting system and determine the reasonable advancing speed during the mining of the lower layer working face to reduce or even eliminate the impact of mining technology on the rock burst. By comparing the damage situation of rock burst during the driving construction of the lower layer working face and the corresponding upper layer working face, we find that the control method has well control effect on rock burst and achieves the anticipated goal.