在圆梁山隧道高压富水区应用的地质超前预报技术

Advance geology prediction technology used in the high pressure and rich water area of Yuanliangshan tunnel

在隧道施工过程中 ,由于岩溶发育的不确定性 ,易造成突水、涌泥沙等突发事故 ,会给施工带来极大危害。为保证施工安全 ,在圆梁山隧道毛坝向斜高压富水区采用了超前地质预报技术 ,并确定了相应的施工方案。文章针对本隧道PDK3 54+ 2 56段处的岩溶地质情况 ,阐述了超前地质预报技术在施工中所起的重要作用。

During tunnel construction, accidents such as water, soil and sand gushing may occur due to the uncertainty of karst distribution, which will affect the construction seriously. To ensure safety, advance geology prediction technology is used in the high pressure and rich water area of Yuanliangshan tunnel with the corresponding construction scheme confirmed. This paper describes the important role of the advance geology prediction technology played in the construction with respect to the karst condition at the mileage of PDK354+256 in the tunnel.