大跨度框架顶进施工时铁路双线线路加固技术研究

Research on Reinforcement Technology of Double-track Railway Line during Jacking Construction of Large-span Frame

本文以下穿太焦铁路的框架顶进施工为例,详细说明了大跨度、双线铁路(线间距过小,线间无法设置支墩孔桩)的线路加固方法。并重点阐述了I100大工字钢、[3703]组合构件在线路加固中的应用,以期为此类困难条件下的线路加固提供参考。

This article takes the frame jacking construction of the Taiyuan-Jiaozuo Railway as an example,and explains in detail the line reinforcement method of the large-span and double-track railway(the line spacing is too small,buttress hole piles cannot be set between the lines).It also focuses on the application of I100 large I-beam and[3703]composite members in line reinforcement,in order to provide reference for line reinforcement under such difficult conditions.