铁路隧道小角度斜交既有线D型梁加固施工技术研究

Technical research of type d-reinforcement project on small angel-intersection of railway tunnel and exsiting traffic line

新建珠三角城际莞惠线暗挖区间ZXDK1+246~ZXDK1+334范围下穿既有京九铁路线,为保证行车安全,同时不中断列车行驶的前提下,在"天窗"间隙通过D型梁选型组合对既有线路进行架设,本文对整体施工的组织安排进行了阐述,分析D型梁架设的工艺特点及相应施工安全质量控制的技术要求。

Underground excavation of newly-built New Pearl River Delta＇s intercity traffic line of Dongguan and Huizhou passes undemeath existing Jinghui railway.In order to ensure the safety and scheduled-running of the train,type D combination will be implemented to reconstruct current traffic line in the intervals of transportation.This passage expounds the arrangement of the whole execution,analyzing the technological characteristics of type D and technical requirement of related safety control.