关键词: 千米深井, 首采工作面, 超前扰动, 载荷三带, 冲击地压

Abstract: In view of the engineering problems of rockburst prevention and control in a kilometer deep well, taking the first mining face of Shuanghe coal mine as the engineering background, through theoretical research and field measurement and analysis, the law of the first mining face's mine pressure under the current geological and mining technology conditions is explored. The conclusions are as follows: (1) based on the analysis of load three zone theory and microseismic measured data, the thickness of immediate loading zone in the first mining face is 23.8-37.2m above the coal seam, the thickness of delayed loading zone is 60-73.7m above the coal seam, and the static loading zone is 73.7m above the coal seam to the surface; (2) the influence range of advance disturbance in the first mining face revealed by microseismic is 120m, and the advance influence range revealed by borehole stress monitoring is 115-120m It is 92-101m. (3) The microseismic monitoring revealed that the fracture angle of the strata is about 52 ° in strike and 60 ° in dip.