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文章结合杭徽高速公路岳山隧道,介绍了双连拱隧道的施工工艺:分段施工中隔墙,用上下台阶法进行洞身开挖,对中隔墙的细部结构进行优化,可缩短隧道施工工期和节约投资,并且可解决中隔墙顶部渗水的通病。该施工方法,可在类似工程中借鉴使用。
This paper introduces the construction technology of double-arch tunnel in the construction of Yue-Shan tunnel on Hang-Hu Expressway. The construction of partition wall in different sections and the excavation of the tunnel body by the steps of the upper and lower steps are carried out to optimize the detailed structure of the partition wall, which can shorten the tunnel construction Duration and saving investment, and can solve the common problem of water seepage at the top of the wall. The construction method can be used in similar projects.