齿轨铁路线路平面关键设计参数研究  

Research on Key Design Parameters of Rack Railway Track Plane

作　　者：寇峻瑜 余浩伟[1] 姜梅[1] 罗圆[1] KOU Junyu;YU Haowei;JIANG Mei;LUO Yuan(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《铁道标准设计》2024年第10期43-47,60,共6页Railway Standard Design

基　　金：四川省科技计划项目(2019YFG0042);中铁二院工程集团有限责任公司科研项目(KSNQ213001)。

摘　　要：线路平面设计参数的确定对齿轨铁路试验线及运营线建设具有重要作用。以标准轨距铁路线路计算原理为基础,结合米轨车辆与线路之间的匹配关系,基于行驶动力学理论对齿轨铁路线路平面关键设计参数取值进行初步研究。通过类比标准轨距铁路和总结国内外规范相关参数取值,得出齿轨铁路曲线半径和缓和曲线长度的计算公式和控制指标取值。结果表明:对于黏着路段最高设计速度120 km/h和齿轨路段最高设计速度40 km/h的齿轨铁路,黏着路段的最小曲线半径一般和困难条件下分别可取900,750 m,齿轨路段的最小曲线半径一般和困难条件下分别可取350,300 m;黏着路段的缓和曲线长度应结合曲线半径相应选择,齿轨路段的最小缓和曲线长度均取为20 m。The determination of track plane design parameters plays an important role in the construction of testing and operational lines for rack railways.On the basis of the calculation principles of standard gauge railway lines,combined with the matching relationship between meter-gauge vehicles and tracks,a preliminary study on the key design parameters of the rack railway track plane was conducted using vehicle dynamics theory.By comparing with standard gauge railways and summarizing relevant parameter values from domestic and international specifications,the calculation formulas and control indicators of the curve radius and the transition curve length for the rack railway were obtained.The results showed that for a rack railway with a maximum design speed of 120 km/h on adhesion sections and 40 km/h on rack sections,the minimum curve radius for the adhesion section could be set at 900 m under normal conditions and 750 m under difficult conditions.For rack sections,the minimum curve radius could be 350 m under normal conditions and 300 m under difficult conditions.The transition curve length for adhesion sections should be selected according to the curve radius,while the minimum transition curve length for rack sections should be 20 m.

关 键 词：轨道交通 齿轨铁路 行驶动力学 平面参数 曲线半径 缓和曲线 

分 类 号：U234[交通运输工程—道路与铁道工程] U211