隧洞超前小导管支护的探讨

Discussion on Retaining and Protecting of Tunnel Advanced Small Pipe

苏州高新区建成区水环境整治工程二期六标段的164m穿山隧洞,比较了管棚施工与超前小导管施工的优越性后,施工采用超前小导管支护的施工工艺。本文对其超前小导管支护的施工工艺加以探讨,以供类似工程参考。

After the superiority of pipe shed construction and advanced small pipe construction are compared in 164m mountain crossing tunnel in the sixth bid section of stage II of water environment renovation project of the builtup area of Suzhou hightech zone. Construction technology of advanced small pipe retaining and protecting is adopted in construction. The construction technology of the advanced small pipe retaining and protecting is discussed in the paper, thereby providing reference for similar projects.