斜交大跨度框架顶进D型便梁线路加固及顶进技术

Line Reinforcement and Jacking Technology of Oblique Long-span Frame Jacking D-type Beam

本文以武深高速公路始兴联络线下穿赣韶铁路大跨度斜交(2-13.75m×6.8m框架桥,交角61°)框架桥顶进施工实践为例,介绍了D型施工便梁分两阶段加固既有铁路方案的设计及施工步骤,并对关键施工方法及主要技术措施进行了总结。

This paper takes the construction practice of the frame bridge jacking of the large-span oblique crossing(2-13.75m×6.8m frame bridge,intersection angle 61°)under the Shixing connection line of the Wushen Expressway passing through the Ganshao Railway as an example,and introduces the D-type construction The design and construction steps of the existing railway scheme for strengthening the existing railway in two stages are summarized,and the key construction methods and main technical measures are summarized.