千米深井综放工作面支承压力分布及冲击地压规律研究

Study on law of abutment pressure distribution and coal burst of Kilometer-depth coal mine fully mechanized caving face

该文采用KJ550型应力在线监测系统和So S微震监测系统对1306工作面支承压力分布特征及矿震时空分布规律进行了研究。研究结果表明,工作面"见方"期间超前支承压力影响范围高于正常推进期间,工作面强矿震的出现不是单一孤立的,强矿震有丛集显现,震动与开采活动的直接相关性很强。1306工作面重点防冲区域为工作面正常推进时周期来压位置,工作面"见方"区域及断层、煤层分叉及巷道交叉等地质异常区域。

Distributing characteristic of abutment pressure and law of mine earthquake in workface of 1306 was researched by KJ550 on-line stress and SOS micro seismic monitoring system. Results show that inlfuence range of advance abutment pressure during workface square is larger than workface normal promoting, strength mine earthquake is not isolated, Key regions of coal brust prevention and control is position of periodic weighting, face ＆quot;square＆quot; area and faults, seam splits and other geological anomalies roadway crossing area.