孤岛煤柱综放工作面空巷充填开采技术实践

Practice of Abandoned Roadway Filling Mining Technology in Fully-Mechanized Face of Isolated Coal Pillar

矿井在生产过程中,随着采区内工作面的持续回采,到全采区的回采结束时,势必留下采区上下山孤岛煤柱,且煤柱内残留巷道往往是纵横交错。如何安全回收采区上下山孤岛煤柱,提高矿井资源采出量,是矿井生产中遇到的难题之一。陶一矿通过采用高水材料提前充填煤柱内残留巷道,实现了孤岛煤柱的综放工作面安全开采。

When the mining is finished,up-and-down hill isolated coal pillars are left,and residual roadways crisscross each other.It is one of challenges in the mining production to recover these coal pillars in order to increase the yield.High-water materials are used to fill the residual roadways in advance to realize the safe mining of the isolated coal pillars on the fully-mechanized face.