关键词: 深井开采, 微震监测, 岩爆预测, 地压活动, 微震频率

Abstract: The composition and structure of the microseismic monitoring system in Yunnan Huize Leadzinc Mine were introduced. The ground pressure zones are defined by combining with the quantitative theoretical study on microseismic events and onsite recovery. And using the advanced seismological quantitative analysis and visual interpretation function in monitoring system，the rules of variation in stress，displacement，stiffness and stability of the activity zone were studied. It is indicated that the variation in concentrated area of the ground pressure activities has a close relationship with the underground mining activities. Before largescale rock destruction，such features will occur as rock stiffness gradually increased and then decreased，stress level increased in turn after decreased，microseismic frequency and accumulated volume sharply increased. These can provide a method and theoretical basis for prediction of the rock mass destruction. 

Key words: Deep mining, Microseismic monitoring, Prediction of rock burst, Ground pressure activities, Microseismic frequency