重载铁路顶进线路加固技术

近年来,我国公路、铁路不断发展,铁路、公路的改造往往需要增减或扩建涵洞或立交框构,顶进施工便成了这些工程的首选方案。结合大秦线K337＋002.5杨雁路地道桥工程同时下穿大秦线上行、下行两股线的工程实践,介绍了采用限速45 km/h铁路框架顶进线路加固施工方法。为以后在同样条件下的地道桥施工积累经验。

Heavy Rail Jacking Reinforcement Techniques

With the continuous development of China's highways and railways in recent years,the transformation or expansion of box culvert or overpass structures are often needed in the reconstruction of roads,and jacking is a preferred solution for these projects.This paper describes the use of speed limit 45 km/h railway line reinforcement jacking frame construction method,and provides experience for the future of bridge construction under the same conditions.