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Modern Mining ›› 2020, Vol. 36 ›› Issue (11): 212-214.

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Study on Risk of Rockburst in Driving Face Based on Microseismic Method

XU Dalian1 SUN Zhenping2 LIU Chungang2 ZHANG Jing3   

  1. 1.Xuzhou Coal Mining Group Co.,Ltd.; 2.State Key Laboratory of Coal Mine Safety Technology,China Coal Technology & Engineering Group Shenyang Research Institute;3.Datong Coal Mine Group Safety Supervision Bureau
  • Online:2020-11-25 Published:2021-09-28

Abstract: In order to study the risk of rockburst in the driving face,this paper takes Zhangshuanglou Coal Mine of xukuang group as the research background,studies the risk of rockburst in three driving faces of 74104 working face by using the microseismic method.The research shows that the leading influence range of the cutting driving face is 35~58 m,the leading influence range of the material Road West driving face is 18~ 76 m,and the material Road West driving face is 18~76 m The advance influence range of the driving face in the east of the road is 44~120 m;the mining earthquake intensity is affected by the distance between the driving face and the F1 fault,the closer the distance is,the higher the frequency energy of the mining earthquake is.In view of this situation,more reasonable supporting measures are put forward to ensure the smooth and safe driving of 74104 working face.

Key words: microseismic method, driving face, rockburst, risk