采动地表影响规律技术研究与应用

Technical Research and Application on Mining Surface Influence Law

针对店坪煤矿9-208工作面局部将在工业广场及附近村庄煤柱边缘下方进行穿掘的状况,为保障保护煤柱不受采掘破坏影响,利用该矿在9-200地表和3-3032巷分别建立移动观测站获得的移动角值,对9-208工作面采动影响范围进行预计,应用概率积分法超前预计了9-208工作面回采后地表影响程度,对9-208安全回采进行了评价,为最大限度安全高效地将宝贵的煤炭资源开采出来,最大限度减弱地表受下方采动影响,提供了科学可靠的技术依据,化解矿井日益减少的煤炭资源困境。

In view of the situation where some parts of the 9-208 working face in Dianping Coal Mine will excavate below the edge of the coal pillars in the industrial square and nearby villages,in order to ensure the protection coal pillars not affected by mining and excavation damage,the movement angle values obtained from the mobile observation stations established on the 9-200 surface and the 3-3032 roadway of the mine are used to predict the range of mining influence of the 9-208 working face.The probability integral method is used to predict the degree of surface influence after stoping of the 9-208 working face in advance,and the safety stoping of the 9-208 working face is evaluated.To maximize the safe and efficient extraction of valuable coal resources,minimize the influence of underground mining on the surface,provide scientific and reliable technical basis,and resolve the increasingly scarce coal resource dilemma in mines.