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轨道结构是客运专线基础设施的重要组成部分。介绍日本、法国、德国高速铁路的轨道结构以及我国提速铁路轨道结构概况;指出确定技术标准是我国客运专线轨道结构的首要工作,另外还需解决轨道结构与机车车辆(动车组)走行部的关系、轨道刚度、工后沉降、道岔结构与转换、轨道结构的系统集成等关键技术问题。
Track structure is an important part of passenger dedicated infrastructure. The track structure of high-speed railway in Japan, France and Germany as well as the outline of track structure of speed-increasing railway in our country are pointed out. It is pointed out that determining the technical standard is the most important task in the track structure of China’s passenger dedicated railway and the relationship between the track structure and the traveling department of locomotive (EMU) , Orbit stiffness, post-construction settlement, switch structure and conversion, orbit structure system integration and other key technical issues.