张家茆14202综采工作面矿压规律分析

摘要

On the observation of the 14202 fully mechanized coal mining face of Zhangjiamao mine, the support sink, the main roof sink,the main roof intension and entry distort are analyzed. The support can balance the load of the rock and can meet the requirement of normal mining. The law of strata behavior in 14202 long-wall face in shallow seam is obtained. In view of the support and disaster situation, the support measure is put forward to improve the support state to prevent the disaster.%对张家茆矿14202综采工作面进行了观测,观测了综采支架活柱下缩量、顶底板移近量、顶板来压强度等参数.观测研究表明老顶来压强度不高,支架能平衡顶板压力,满足工作面正常开采时对支护阻力的要求.总结了浅埋煤层多煤层开采综采工作面的矿压显现规律.针对其顶板的支护状况及灾变危险,提出了改善支护的措施,为实现综采工作面安全开采提供了依据.