常导高速磁浮交通道岔的平面曲线线形及参数

彭也也; 宋欣悦; 赵春发; 冯洋; 娄会彬

doi:10.3969/j.issn.0258-2724.20240447

常导高速磁浮交通道岔的平面曲线线形及参数

doi: 10.3969/j.issn.0258-2724.20240447

1.
西南交通大学轨道交通运载系统全国重点实验室，四川成都 610031
2.
中铁第四勘察设计院集团有限公司，湖北武汉 430063

基金项目: 国家自然科学基金项目（52402454）；国家资助博士后研究人员计划（GZB20230612）；中央高校基本科研业务费专项资金（2682024CX035）

详细信息

作者简介:
彭也也（1992—），男，博士研究生，研究方向为磁浮车桥耦合动力学，E-mail：yeyepeng@126.com

通讯作者:
赵春发（1973—），男，研究员，博士，研究方向为磁浮车桥耦合动力学理论及应用研究，E-mail： cfzhao@swjtu.edu.cn

中图分类号: U237
计量
- 文章访问数: 55
- HTML全文浏览量: 22
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2024-09-11
- 修回日期: 2025-02-27
- 网络出版日期: 2025-05-14

Horizontal Curve Alignment and Parameters of Turnout for High-Speed Electromagnetic Suspension Maglev Transit

1.
State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, China
2.
China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China

摘要

摘要:
常导高速磁浮道岔是磁浮交通的薄弱环节之一，其线形参数研究对磁浮道岔优化设计具有重要意义. 为探究道岔平曲线线形及参数对道岔设计的影响，首先综合分析现有常导高速磁浮交通车线几何约束关系、列车平稳舒适运行以及道岔制造与运维经济性对道岔线形的要求；其次，探究常导高速磁浮道岔曲线线形组合及关键参数取值原则；最后，提出面向低速、较高速及高速3种通行条件的道岔平面线形. 研究表明：受车线几何约束关系限制，道岔的平面曲线半径不应小于350.00 m；单圆型道岔存在侧向加速度突变，仅适用于低速通过，缓-圆型道岔占地较大，不建议采用；缓-圆-缓型道岔可根据使用需求调整参数，适用场景广泛；缓-圆-缓型道岔设计中，道岔区长度、端部横向位移、转辙角度均随着圆曲线半径增加而减小；为满足岔后横向位移的限界要求，圆曲线半径存在一最大值；转辙角度和端部横向位移均随着圆缓比的增大而逐渐增大，圆缓比值建议在2～4之间选取.
- 常导高速磁浮交通 /
- 道岔 /
- 曲线拟合 /
- 几何 /
- 优化
Abstract:
High-speed electromagnetic suspension (EMS) maglev turnouts are one of the weak links in maglev transit, and the study of their alignment parameters is essential for optimizing turnout design. To explore the impacts of the horizontal curve alignment and parameters on the turnout design, the geometric constraints of the vehicle-track system, the requirements for smooth and comfortable train operation, and the demands of turnout manufacturing and maintenance economy on turnout alignment were comprehensively analyzed. Subsequently, the combinations of turnout curve alignment and the principles for selecting key parameters of high-speed EMS maglev turnouts were explored. Finally, horizontal alignment schemes for turnouts under three passing conditions, low speed, moderate speed, and high speed, were proposed. The results show that the horizontal curve radius of turnouts, constrained by the geometric constraints of the vehicle-track system, should not be less than 350.00 m. Single circular curve turnouts exhibit abrupt lateral acceleration changes and are only suitable for low-speed passing. Clothoid-to-circular curve turnouts require large land occupations and are not recommended. Clothoid-circular-clothoid curve turnouts allow parameter adjustments according to operational requirements and are applicable to diverse scenarios. In clothoid-circular-clothoid curve turnout designs, the turnout zone length, lateral displacement at the ends, and switching angle decrease as the circular curve radius increases. The circular curve radius is subject to an upper limit to satisfy lateral displacement after the turnouts. Both the switching angle and lateral displacement at the ends increase with the increase in the clothoid-to-circular ratio, which is recommended to be selected between 2 and 4.
- high-speed EMS maglev transit /
- turnout /
- curve fitting /
- geometry /
- optimization

HTML全文

图 1 常导高速磁浮道岔示意（单位：m）

Figure 1. High-speed EMS maglev turnout (unit: m)

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图 2 圆曲线上电磁铁与轨道位置示意

Figure 2. Position of electromagnet and track on circular curve

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图 3 圆曲线上走行部间位置示意

Figure 3. Position between running gear on circular curve

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图 4 圆曲线上车体与悬浮架位置示意

Figure 4. Position of carbody and levitation bogie on circular curve

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图 5 线路舒适度指标与缓和曲线类型的关系

Figure 5. Relationship between line ride comfort index and clothoid curve type

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图 6 单圆型道岔线形（圆曲线型）

Figure 6. Alignment of single circular curve turnout (circular curve type)

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图 7 道岔转辙角度随半径的变化（圆曲线型）

Figure 7. Variation of turnout switching angle with radius (circular curve type)

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图 8 道岔横移量随终点半径的变化（缓和曲线型）

Figure 8. Variation of lateral displacement of turnout with terminal radius (clothoid curve type)

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图 9 缓-圆型道岔线形

Figure 9. Alignment of clothoid-to-circular curve turnout

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图 10 圆曲线半径对转辙角度和道岔区长度的影响

Figure 10. Influence of circular curve radius on switching angle and turnout zone length

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图 11 缓-圆-缓型道岔线形

Figure 11. Alignment of clothoid-circular-clothoid curve turnout

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图 12 圆曲线半径对转辙角度、道岔区长度和端部横移量的影响

Figure 12. Influence of circular curve radius on switching angle, turnout zone length, and lateral displacement at end

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图 13 不同通过速度时圆缓比对道岔参数的影响

Figure 13. Effect of clothoid-to-circular ratio on turnout parameters at different passing speeds

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图 14 面向低速通过的道岔侧向线形设计图

Figure 14. Design of lateral alignment for turnouts intended for low-speed passing

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图 15 面向较高速的道岔侧向线形设计图

Figure 15. Design of lateral alignment for turnouts intended for moderate-speed passing

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图 16 面向高速的道岔侧向线形设计图

Figure 16. Design of lateral alignment for turnouts intended for high-speed passing

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表 1 侧向设计通过速度对应最小平面曲线半径

Table 1. Minimum horizontal curve radius corresponding to lateral design passing speed

侧向设计通过速度/（km•h⁻¹）最小半径/m

100 386.00

200 1543.00

300 3472.00

400 6174.00

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