Abstract
In order to minimize the threat of ground pressure disasters, this paper introduces the work of microseismic monitoring based on analyzing a large range of mining condition of No.92 ore body of Tongkeng Tin Mine. A system of microseismic and ground pressure disaster monitoring in the range of No.92 ore body mining area is established by using three 12-channel of rock accoustic emission equipments and a 24-channel microseismic monitoring system, combined with ordinary surrounding rock pressure and displacement monitoring instruments. Data acquisition, analysis and treatment are automatically. Field application shows that many ground pressure activities are monitored effectively by analyzing the rock acoustic emission at different energy and the moving law of overlying strata. The technology provides a reliable support to early warning and control of ground pressure disasters.
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