摘要
研究目的:根据城际铁路的特点,分析城际铁路对轨道结构的需求,提出城际铁路轨道结构的选型原则,通过对钢轨、扣件和轨下基础的分析比较,提出200 km/h城际铁路轨道选型建议。研究结论:轨道结构选型应均衡提高轨道整体结构的承载力,选用轮轨硬度相匹配的U71Mn钢轨、无砟轨道及与无砟轨道相配的扣件系统,以提高城际铁路的使用率。但当线路经过大型的铁路枢纽时,鉴于枢纽内线路关系复杂,道岔类型繁多,根据工程实施的难易程度可选用有砟轨道以减少对枢纽内工程的影响。此外,当城际铁路穿越城市中心区域等人口密集区域时,应积极采用减振降噪措施,以减小城际铁路列车运行对环境的影响。
Research purposes： According to the characteristics of the intercity railway, this paper analyzes the requirement of the intercity railway for the track structure, presents the selection principle of the track structure of intercity railway and makes a proposal on selection of the track structure of 200km/h intercity railway based on the analysis and comparison of the rail, fastening and the foundation under the rail. Research conclusions：The selection of track structure should enhance the load bearing capacity of the whole track structure uniformly. The U71Mn rail, ballastless track and suited rail fastening system should be used in order to increase the utilization ratio of the intercity railway. When the railway passes the large terminal, according to the difficult level, the ballast track can be used to reduce the influence on the engineering in the terminal because there are many tracks and various kinds of turnouts in the terminal. In addition, when the railway passes the area with dense population like downtown area, the measures for reducing vibration and noise should be taken to reduce the influence of train running on environment.
出处
《铁道工程学报》
EI
北大核心
2013年第1期20-23,60,共5页
Journal of Railway Engineering Society
关键词
城际铁路
轨道
选型
减振降噪
intercity railway
track
selection
reduction of vibration and noise
