【摘要】 通过分析胡家河矿微震监测系统,研究了褶曲构造带附近的巷道掘进过程中的矿震时空分布规律,同时详细分析了褶曲构造区域典型的强矿震的特征,进一步对矿震的活动提出控制手段。研究表明:褶曲构造区内的矿震发生机理主要以构造应力和采动影响共同作用下导致的,矿震主要分布在A4背斜轴部两侧180 m范围内;高能量的矿震在能量释放时,具有突然爆发的特点,其震动波速度会在极短的时间内由较低的平稳状态徒增至较高的状态;降低掘进速度、弱化煤岩体等可以有效控制矿震的活动。更多还原

【Abstract】 Through the analysis of microseismic monitoring system in Hujiahe Coal Mine,we study the time and space distribution law of mine earthquake for tunneling roadway in folded region,analyze the typical characteristics,and propose control means.Results show that the mine earthquake occurred in folded region is induced by both tectonic stress and mining influence,and microseism events are mainly concentrated in the A4 anticline in the range of 180 m; the high-energy microseism events burst quickly when it release its energy and its vibration wave velocity will be changed from a low level to a high level; microseism events can be controlled by reducing tunneling speed and weakening the strength coal and rock.更多还原