开拓巷道顶板淋水封堵技术实践

Practice of Water Spraying Plugging Technology in Mining Roadway Roof

寺河煤矿二号井二水平回风暗斜井在穿过落差146 m的马坊泉断层后,受断层牵引作用影响,其顶板破碎,裂隙、节理发育且与上部砂岩、冲积层含水层连通,造成巷道局部顶板淋水,总淋水量约90 m3/h。通过采用波雷因化学材料封堵巷道围岩浅部裂隙、水泥浆封堵巷道围岩深部裂隙的注浆封堵技术,实现了对该处所有淋水点的成功封堵,达到了快速注浆堵水的目的。

After passing through the Mafangquan fault with a drop of 146 m,the second horizontal return air dark inclined shaft of No.2 Mine of Sihe Coal Mine was affected by the traction of the fault.Its roof was broken,fissures and joints were developed and connected with the upper sandstone and alluvium aquifer,resulting in local roof water spraying of the roadway,with a total water spraying volume of about 90 m3/h.By using the technology of grouting the bolemine chemical material to plug the shallow fracture of the surrounding rock and the deep fracture of the surrounding rock with cement slurry,the successful plugging of all the water pouring points in the area was realized,and the purpose of rapid grouting to block the water was achieved.