城轨交通大跨度钢桁斜拉桥轨道工程监测技术研究

Monitoring Technology of Long-Span Steel Truss Cable-Stayed Bridge in Transit

重庆轨道交通6号线东水门长江大桥和千厮门嘉陵江大桥(简称两江桥)通过实施大跨度斜拉桥轨道工程监测技术攻关,实现了铺轨前的线性监测控制和调整;通过有限元模拟分析,消除了在二期恒载作用下桥体结构变形挠度,使铺设的整体道床轨道的稳定性满足运营要求,同时提出了成套施工技术流程。

Through implementation of the key research works of the track engineering monitoring technology concerning the long-span cable-stayed bridges on the Dongshuimen Yangtze River bridge and Qiansimen Jialing River bridge （ Liang-Jiang Qiao） for Chongqing metro line 6, the linear monitoring control and adjustment before laying track are realized. With the finite element analysis, bridge body structure deformation and deflection in the second phase period under dead load are eliminated, the stability of monolithic track bed laying meets operational requirements, and this paper puts forward the complete integrated construction technology process.