高速公路软弱围岩浅埋大跨度双连拱隧道施工

On the large-span and double-arch tunnel construction of the shallow-buried surrounding rocks on highways

结合某高速公路软弱围岩浅埋大跨度双连拱隧道地质条件复杂、施工难度大、技术含量高等特点,对隧道的施工技术方案、主要施工工序及施工关键技术进行了阐述,实践证明,该项目按照以上施工技术进行施工,取得了良好的效果。

Combining with the characteristics of the large-span and double-arch tunnel construction of the shallow-buried surrounding rocks on highway, including complicated geological conditions, higher difficulties and higher technology content, the paper illustrates the construction technology scheme of tunnel, major consuruction procedure and key technology of construction, and it is proved that the project should be undertaken according to the above-mentioned points to obtain better effects.