摘要
Abstract
The purpose of this study is to solve a series of technical problems when paving the ballastless track on long-span bridge of Wuhan-Guangzhou High-speed Railway, such as passing through large-scale girder's juncture, installing the rail expansion joints because of the overlarge gird-end rotation and displacement and overlarge temperature-span, the stability of gird-end track slab, laying the turnout on bridge, etc. Through theoretical calculation and analysis based on operation condition and the most adverse factors, several key technical problems of paving the ballastless track on the long-span bridge were solved in Wuhan - Guangzhou High-speed Railway, that are: paving the ballastless tracks on the bridge with the longest span of 168m, paving the ballastless tracks on the bridge with steel box tied-arch, and paving the ballastless tracks on the bridge's turnout zone.关键词
武广高速铁路/无砟轨道/桥梁/关键技术Key words
Wuhan-Guangzhou High-speed Railway/ ballastless track/ bridge/ key technology分类
交通工程
