摘要
研究目的:齿轨铁路因其爬坡能力强的优点,已成为山地轨道交通的主要结构型式。为指导西南山区某齿轨铁路的轨道选型,本文结合项目工程概况,提出了轨道结构需求及选型原则,通过分析国内外齿轨交通应用现状与工程特点,从齿轨系统、道床型式、钢轨与齿条、扣件系统、轨枕结构、道岔系统和过渡装置等方面提出了齿轨铁路轨道结构型式与设计方案。研究结论:(1)Strub齿轨系统安装方便、养护维修成本低,建议采用Strub齿轨系统;(2)有砟轨道工程投资少,能更好地适应各种曲线和地质条件,应用广泛,推荐采用有砟轨道结构,但应设置地锚和拉锚等锚固措施;(3)无缝线路能保证行车平稳性,减少养护维修工作量,建议采用50 kg/m钢轨无缝线路,同时对齿条在钢轨基础上进行优化设计,采用无缝齿条结构;(4)综合考虑齿轨系统的适应性、道岔结构可靠性、线路运营效率,建议优先采用齿轨覆盖式可分道岔和三段式缓冲入齿装置;平移式齿轨道岔运行可靠性高、适应性强,空间足够时可采用平移式齿轨道岔;(5)本研究成果可为山地轨道交通轨道结构选型与设计提供参考。
Research purposes:The rack railway has become the predominant structural type for mountain rail transportation because of the advantage of strong climbing ability.To guide the track selection for a specific rack railway in Southwestern Mountainous Regions,this paper outlines the project engineering overview and proposes the track structure requirements and selection principles,through the analysis of rack railway transportation application status and engineering characteristics worldwide,the track structure type and design scheme suitable for rack railway were proposed from the aspects of rack rail system,track type,rail and rack rail,fastening system,sleeper structure,turnout system,and transition device.Research conclusions:(1)Because of its superior installation convenience and lower maintenance costs,the Strub rack system was recommended.(2)Ballasted track requires lower engineering investment,adapts better to various curves and geological conditions,and has wider engineering applications.Ballasted track structure is recommended,but ground anchors and tie anchors should be installed as anchoring measures.(3)Continuous welded rail could ensure operational stability,and reduce the maintenance workload,the 50 kg/m continuous welded rail is recommended,and the rack should be optimized design based on the rail,employing a continuously welded structure.(4)Considering the adaptability of rack system,reliability of turnout structure,and line operation efficiency,it is recommended to prioritize the use of covered separable rack rail turnouts and a three-stage buffered gear mechanism.The translational type rack rail turnout offers excellent operational stability and strong adaptability,it can be adopted where space is sufficient.(5)The research results can provide a reference for track structural selection and design of mountain rack railway.
作者
徐浩
杨文茂
邓军桥
陈嘉胤
刘卫星
XU Hao;YANG Wenmao;DENG Junqiao;CHEN Jiayin;LIU Weixing(Guangzhou Maritime University,Guangzhou,Guangdong 510725,China;China Railway Eryuan Engineering Group Co.Ltd.,Chengdu,Sichuan 610031,China)
出处
《铁道工程学报》
北大核心
2025年第10期34-38,共5页
Journal of Railway Engineering Society
基金
中国中铁股份有限公司科技研究开发计划(2025-重大-04)
广东省基础与应用基础研究基金(2023A1515110398)
西藏自治区科技计划项目技术创新引导计划(XZ202401JX0005)
广州市科技计划项目(2025A04J4425)
中国科协青年人才托举工程(2019QNRC001)。
关键词
齿轨铁路
轨道选型
选型原则
设计方案
rack railway
track selection
selection principles
design scheme
