胡家河煤矿综放工作面冲击地压影响因素分析

Analysis of Factors Affecting Impact Ground Pressure at the Heaving Face of Hujiahe Coal Mine

研究胡家河煤矿及该矿区地质条件下工作面冲击地压显现规律,提出针对性的监测、预警和防治技术,对于促进胡家河煤矿安全高效发展具有枳极的意义。研究结果表明:沿空侧留设窄煤柱护巷有利于冲击地压的防治,若留设宽煤柱,沿空巷道受上区段采空区顶板活动及其稳定后形成的侧向支承压力影响显著。

It is of great significance to study the impact pressure pattern at the working face of Hujiahe coal mine and the geological conditions of the mine area,and to propose targeted monitoring,early warning and prevention techniques to promote the safe and efficient development of Hujiahe coal mine.The results of the study show that:leaving narrow coal pillars along the empty side of the roadway is conducive to the prevention and control of impact ground pressure;if wide coal pillars are left,the roadway along the empty side is significantly affected by the lateral support pressure formed by the roof activity and its stabilization in the upper section of the mining area.