地铁隧道下穿河道废弃桥桩拔桩施工技术

拔桩工法在一般大型市政桥梁以及地铁工程施工中是比较成熟的,但这种工法在特殊的工况地质条件下受到制约仍有其局限性,必须因地制宜对其进行改造、革新,以适应在特殊地质条件下的拔桩施工。文章以无锡地铁2号线通德桥的拔桩施工为例,介绍拔桩施工的技术创新、工艺和方法。

Pile Uplifting Construction Technology for Metro Tunnel beneath Abandoned River Bridge

Pile uplifting engineering methods in large municipal bridge projects and metro construction are a relatively proven technology, but there are still constraints and limits of this construction method in the working conditions of special geological conditions. It must be adapted to local conditions for further modification, innovation in order to facilitate pile uplifting construction in the special geological conditions. Taking pile pulling in Tongde bridge construction on Wuxi metro line 2 as an example, the paper describes the pile uplifting construction technology innovation, technology and methods.