软土地区地铁隧道穿越既有桥梁桩基磨桩技术研究

Research on Grinding Technology of Subway Tunnel in Soft-soil Area Crossing Existing Bridge Pile Foundation

随着地铁建设的持续发展,由于其所处环境的复杂性,地铁的施工难度越来越大。在施工中遇到线路需要穿越既有桥梁桩基的情况一般采用桩基托换技术处理后,就需要对原有桩基进行磨桩施工,就某软土地区工程的磨桩施工工艺简单分析研究,旨在同类施工提供参考。

With the continuous development of subway construction, due to the complexity of its environment, the construction of subway is more and more difficult.In the case of encountering the line in the construction, it is necessary to cross the pile foundation of the existing bridge.After the pile foundation underpinning technology is generally used, the original pile foundation needs to be ground and the simple construction of the grinding pile construction process in a soft soil area project.The research aims to provide a reference for similar construction.