已封闭采空区气体异常治理技术

Treatment Technology of Gas Anomaly in Closed Goaf

针对星村煤矿已封闭采空区气体异常现状,伴有密闭墙三孔报废、采空区内充填粉煤灰浆液失水、密闭内震动频繁的难点,通过采取密闭周边打眼充填无机发泡材料的措施,有效地解决了密闭内气体异常情况,提高了矿井密闭治理水平,保证了矿井安全。

Aiming at the present situation of gas anomaly in the closed goaf of Xingcun Coal Mine, accompanied by the difficulties of scrapping three holes in the closed wall, water loss of fly ash slurry filled in the goaf and frequent vibration in the closed area, measures are taken to fill the airtight periphery with inorganic foaming materials, which effectively solves the abnormal gas situation in the airtight, improves the mine sealing treatment level, and ensures the mine safety.