Abstract:
On the basis of observation data from micro-seismic monitoring in Tianchen Colliery, the influence of mining speed, fault, syncline and hilt-shape coal-pillar on micro-seismic was analyzed. Results showed that micro-seismic number was positive correlated with mining speed and large mining speed variation could result into increasing of matters with large-energy. Micro-seismic matters distribution of 7110 mining face was influenced mainly by fault tectonic. By analyzing micro-seismic energy distribution, high rock-burst danger region was obtained, which provided reference for rock-burst prevention in Tianchen Colliery.