某地铁运营矿山隧道拱顶喷水原因分析及治理措施

Analysis and control measures of water spraying on the vault of a subway tunnel

通过分析矿山隧道拱顶喷水的原因,根据二衬脱空的情况,采用注浆填充的方式,实现了对隧道结构的加固和堵漏,解除了安全隐患,以期为其他地铁运营维护时进行二衬脱空漏水治理提供借鉴。

In this paper, by analyzing the cause of water spray in the tunnel dome and empty condition of secondary lining, we adopt grouting filling method to achieve the reinforcement and leakage stoppage of the tunnel structures, and remove the hidden danger of safety. We hope it would providea reference for other metro operationduring the maintenance of the second lining depletion and water leakage.