下穿铁路地道桥顶进施工技术

On jacking construction technique of subway bridges along under-crossing railways

结合具体工程实例,从铁路路基降水、铁路加固、顶进控制等主要方面进行了论述,并提出了相应的技术要点及措施,对既有线顶进地道桥施工具有一定借鉴意义。

Combining with the factual engineering examples,the paper indicates from the precipitation of railway subgrade,the consolidation of railways,and the jacking control,and points out the respective technical points and measures,so as to have the reference significance for the jacking subway bridges along the existing railways.