连拱隧道施工技术初探

随着国家环保措施的逐步加强和完善,隧道工程在公路、铁路建设中所占比例越来越高。大跨度隧道施工难度较大,连拱隧道施工相对安全、结构美观以及相对同等地质条件下的分离式隧道而言具有占地少、投资小等优点。受传统施工方法的制约,连拱隧道多以短隧为主。结合某连拱隧道施工经验,浅谈对连拱隧道施工方法的见解和对连拱隧道质量通病的控制及预防。

STUDY ON CONSTRUCTION TECHNOLOGY OF MULTIPLE-ARCH TUNNEL

Tunnels are taking a bigger percentage of the total length of roads and railways built in China because a sophisticated environmental protection system is being established up gradually. Compared with big-span tunnels, multiple-arch tunnels are safer, more beautiful in structure and easier in construction. Compared with building separate tunnels under the same geological condition, multiple-arch tunnels cover less area and need less investment. Restricted by the traditional construction method, most multiple-arch tunnels are short. Combining the experience of building multiple-arch tunnel, the construction of the multiple-arch tunnel and the control and prevention of the fault common in building multiple-arch tunnels are described.