浅谈复杂地质条件下的残采技术

Discussion on residual mining technology under complicated geological conditions

针对15~#煤九采区北部地质构造复杂的不利开采等因素,采用物探、巷探、钻探等方法,准确掌握了煤层地质状况,查清了周边小窑入侵、采空区积水等情况,通过调整工作面长度、采用先进的施工工艺等技术扩大了回采面积,提高了资源回收率,延长了矿井服务年限。

The geological structure of the 15# coal seam of ninth mining area in Nanzhuang coal mine is complex. By means of geophysical prospecting, roadway- prospecting and drilling prospecting, the geological conditions of coal seams were accu- rately grasped, and the nfining area and water accumulation of adjacent small nfines were investigated. By adjusting the length of working face and adopting advanced mining technology, the nfining area was enlarged, the recovery rate of resources was increased, and the service life of nfine was prolonged.