范家村煤矿疑似区域储量挖潜研究与应用

Potential tapping of suspected regional reserves in Fanjiacun Coal Mine

蒙泰范家村煤矿资源储量逐年减少,生产衔接较为紧张,主采4-1煤层已进入回采末期。地面物探资料显示,矿区东北部存在疑似老窑采空区。为探明该疑似老窑采空区范围及积水情况,解放疑似老窑采空区压覆煤炭资源,提高矿井资源回收率,结合井下采掘现状,研究制定了地面钻探、井下物探和钻探三者相结合的探查方式。探查结果显示,疑似老窑采空区范围大大缩小,增加了原设计工作面的走向长度,缓解了矿井生产衔接紧张的局面,延长了服务年限,可实现更多的经济效益。

Fanjiacun Coal Mine is short of resources and production succession is tense. The mine’s main mining seam,4-2 coal seam,has entered the end mining period. According to the surface geophysical data,there is a suspected goaf in the northeast of the mining area. In order to find out the range and water accumulation in that area,recover the coal resources under the suspected goaf and improve the recovery rate of the mine,combined with the current situation of the underground mining,the exploration method combining surface drilling,underground geophysical exploration and drilling is proposed. The exploration results show that,the range of goaf is much smaller than expected,so the working face length is increased along the strike,tense succession of the mine production is relieved,and service life of the mine is prolonged,creating more economic benefits for the mine.