破碎底板和承压水条件下巷道底鼓治理技术研究

Research on Controlling Technology for Roadway Floor Heave Under Broken Floor and Confined Water

针对义煤集团金鼎矿风井回风大巷破碎底板及高承压水特殊地质条件,研究了巷道产生底鼓的机理及原因,并通过浅部和深部相结合的注浆方式,对巷道底板底鼓进行治理,结果表明:通过对巷道底板浅部离层区及寒灰含水层浅深部相结合的注浆加固方式,有效的降低了巷道涌水量,对巷道底鼓进行了有效的控制。

Based on the broken floor and high confined water of the return airway in ventilation shaft of Jinding Coal Mine, the cause and mechanism of roadway floor heave were studied, and the floor heave was controlled through grouting at bed separation area of the shallow part and the Cambrian limestone water - bearing stratum of the shallow - deep joining part. The practice showed that, the roadway water inflow and floor heave was well controlled.