顶进下穿铁路框架桥理论与实际研究

Theoretical and Practical Research on Frame Bridge Jacked under the Existing Railways

在既定下穿铁路立交方案情况下,为不中断较繁忙铁路线运营,新建市政框架桥一般采用顶进法下穿既有普速铁路。本文通过实际工程案例,研究分析顶进框架桥在设计与施工过程中的一些控制点,以及理论与实际的差异,旨在为此类桥涵的设计、施工等提供参考。

Under the condition of the schemes of underpass railway interchange, in order not to interrupt the busier railway operation,the new municipal frame bridges are generally jacked under existing express railways. This paper studies and analyzes some control points in the design and construction of jacking frame bridges through actual engineering cases, as well as the differences between theory and practice to provide a reference for the design and construction of such bridges and culverts.