Research on Microseismic Monitoring and Control Technology of Dynamic Pressure in Deep Fully- Mechanized Top Coal Caving Face

According to the status of dynamic pressure controlling difficulty, rock burst prevention technology and equipment shortages in deep complicated conditi ons of fully-mechanized top coal caving face, the underground high precision microseismic monitoring system combined with the overlying strata spatial structure theor y, the process of mining strata spatial rupture rule, fault activation pattern and spatial stress field were researched, the 3D continuous dynamic monitoring and the monit oring and early warning of rock burst was realized. The results showed that microseismic monitoring could accurately judge the working face strata rupture range, the st ability of coal pillar and rock motion abnormalities, the dynamic pressure phenomenon and scope advanced monitoring in coal mining face was realized.