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Metal Mine ›› 2012, Vol. 41 ›› Issue (11): 125-128.

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Study on Coupling Relationship of Microseismic Z-MAP Value and Stress and AE data in Rock Burst Coal Mine

Lu Yajun1,Dou Linming2,3,Li Ning2,3,Zhang Junwei2,3,Xie Qun2,3,Xie Long2,3   

  1. 1.Huating Coal Industry Group;2.State Key Laboratory of Coal Resources and Safe Mining;3.School of Mines,China University of Mining and Technology
  • Online:2012-11-15 Published:2012-11-27

Abstract: Due to the deep mining in Yanbei coal mine of Huating,the occurrence frequency of rock burst is increasingly getting higher.In recent years,the SOS microseismic monitoring system,CRMS and AE system have been used to monitor and predict rock burst.Through analyzing the microseismic,stress,and acoustic emission data during mining process in working face 250204,the coupling relationship of these data in several typical burst was studied,and several possible coupling modes were proposed.Especially using microseismic analysis indicators Z-MAP value as parameters,can directly reflects the probability of microseism occurrence,and the close relationship of the microseism with the stress and AE.The result provides a theoretical basis for the strata control observation of Yanbei coal mine.

Key words: Rock burst, Microseismic, Stress, AE, Z-MAP, Coupling