In order to grasp the change of ground pressure and the transfer of ground pressure in the main section of Qixiashan Lead-zinc Mine in real time,a 12-channel microseismic monitoring system was established to monitor the microseismic events in the mining process.According to the monitoring data,the law of ground pressure in the monitoring area is analyzed,and the potential safety production risk is evaluat-ed.The practice shows that when the disturbance factors of the operation are considered,the early warning of the microseismic monitoring system in the stope shows that the ground pressure activity reaches the'active'level.In addition,the ground pressure activity is relatively stable and does not reach the early warning limit.The ground pressure activity early warning system based on microseismic monitoring has certain practicabili-ty and accuracy.In the next step,the system layout range will be optimized considering the change of mining area.
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