大吨位框架桥长距离顶进施工技术研究

Research on Long-distance Jacking Construction Technology of Large-tonnage Frame Bridge

以大吨位下穿铁路框架桥长距离顶进工程实例为背景,针对框架顶进过程中最易出现的问题"扎头、偏位",详细阐述施工控制措施,实现框架桥准确顶进就位,提高施工效率,确保框架桥身质量,达到了预期的目的,也可为今后类似项目提供经验参考。

Taking the example of large-tonnage underpass long-distance jacking of a railway frame bridge as the background, the paper expounds the construction control measures in detail aiming at the most vulnerable problems in the jacking process of the frame,realizes the accurate jacking of the frame bridge into position, improves the construction efficiency, ensures the quality of the frame bridge body, achieves the intended purpose, and provides the experience reference for similar projects in the future.