The deformation of tunnels,roof caving and other ground pressure problems in the surrounding rock of the deep mining area of mining area of tungsten mine in Jiangxi province have become obvious,seriously affecting the production safety of the mine.This paper briefly introduces the mining history of Huangsha mining area,the main mining methods and the way of ground pressure.It points out the danger of ground pressure in the deep part of the mine and discusses the necessity of adopting the multi-channel microseismic monitoring technology and the composition and characteristics of the system.After the establishment of the microseismic monitoring system,through the statistics of the amplitude and number of microseismic signals generated daily in the mining area and the analysis of its changing law,the system successfully provided early warning for two roadway topping events;at the same time,the system collected microseismic localization events in the old mining area,which indicated that the rock structure in the old mining area was not stable.The actual situation shows that the microseismic monitoring system is able to assess the state of the rock body of the mine and provide early warning for certain rock body disasters,which can provide guarantee for the safety of mine production.
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