板集煤矿BF33-1至BF33断层间太灰水害防治实践

Banji Mine BF33-1 To BF33 Fault Too Gray Water Damage Prevention Practices

板集煤矿-735m石门自东向西穿过BF33、BF33-1断层,此段巷道底板距太原组灰岩最短距离仅13m左右。BF33、BF33-1断层含水、导水性以及太原组灰岩富水性特征对巷道掘进存在一定的安全威胁。采用先地面后井下、先区域后局部的防治水综合治理手段,使石门顺利穿过BF33-1至BF33断层间灰岩水害威胁区,实现了巷道安全掘进。

Banji Mine -735m Shimen from east to west across the BF33,BF33-1 fault, this section of roadway floor from Taiyuan Formation limestone shortest distance is only about 13m.BF33-BF33-1 fault containing water conductivity and Taiyuan Formation limestone rich water feature for Tunneling there are some security threats. After using the first floor underground, local prevention after the first integrated regional water management means so smoothly through BF33-1 to BF33 fault limestone water damage threatened area, to achieve a secure tunnel excavation.