Analysis of Rock Burst Induced by Overlying Magmatic Rock

摘要

To explore how to prevent and control rock burst of mining under the overlying magmatic rock, the 1061 working face in 106 mining area in some mine is taken as engineering background. The mining area is overlaid by three thick hard layers of magmatic rock, which lead to rock burst phenomenon. After the mining of the working face, strong pressure appeared in the stope. To guarantee safety production, this paper calculated the limit collapse distance and fracture span of magmatic rock, determined the fracture mechanism of the overlying magmatic rock, and used numerical simulation to verify the theoretical results, then propose reasonable feasible suggestions and methods for the mining of the working face, and provided significant guidance to govern rock burst of the mining area.