复合式后背在桥涵顶进中的应用

随着经济发展的需要,下穿公路、铁路进行立交工程建设变得越来越平凡,而后背是下穿顶进最为重要的临时工程之一,因此,提出安全可靠、经济合理的后背形式具有重要的工程意义和现实意义。文章针对顶进桥涵的特点,介绍了复合式后背的应用,并结合工程实例介绍了其用法,旨在为桥涵顶进后背的设计提供借鉴。

The application of compoundback support on bridge and tunnel jacking

With the development of economic,beneath highways,railways interchange construction is becoming increasingly common,while the back is one of the important temporary project in jacking.So,puts forward safty,reliable,economic,reasonable back form has very important engineering significance and practical significance.According to the characteristics of bridge and tunnel jacking,this paper introduced the application of compound back and combined with solid projecttodescribedits use,and hopes to give reference for the design of bridge and tunnel jackingback.