基于车辆-轨道耦合动力学的400 km/h高速铁路线路平面参数设计研究-《高速铁路技术》

文章信息/Info

Title:: Research on Route Plan Design Parameters of 400 km/h High-speed Railway Based on Vehicle-track Coupling Dynamics

作者:: 翟婉明; 姚力; 孙立; 王开云; 朱胜阳; 1. 西南交通大学牵引动力国家重点实验室, 成都 610031;
2. 中铁二院工程集团有限责任公司, 成都 610031;
3. 中铁第四勘察设计院集团有限公司, 武汉 430063

Author(s):: ZHAI Wanming; YAO Li; SUN Li; WNAG Kaiyun; ZHU Shengyang; 1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China;
2. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China;
3. China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China

Keywords:: 400 km/h high-speed railway|route plan parameters|vehicle-track coupling dynamics|safety and riding comfort

摘要:: 为推进我国400 km/h等级高速铁路的规划建设和创新发展，本文基于车辆-轨道耦合动力学理论，开展了既有350 km/h高速铁路曲线设计参数适应性分析和400 km/h高速铁路线路平面参数设计方法研究，揭示了平面参数匹配关系对系统动力学性能的影响规律。研究结果表明：当曲线半径小于7 000 m时，既有规范的曲线设计参数不再适用；在满足动力学指标和欠/过超高限值要求的条件下，并考虑留有一定的安全裕量，建议400 km/h高速铁路曲线半径不应小于7 500 m；相比于既有欠/过超高设计要求，综合考虑车轨系统动力学性能指标来设计曲线超高具有更宽的合理设置范围。本文通过系统的动力学分析，提出400 km/h条件下曲线线路平面参数匹配建议值，并评估了其安全裕量，研究成果可为400 km/h高速铁路线路平面设计提供理论参考。

Abstract:: In order to promote the planning, construction and innovative development of the 400 km/h high-speed railway in China, this paper analyzes the adaptability of curve design parameters of the existing 350 km/h high-speed railway and studies the route plan parameters design method of the 400 km/h high-speed railway based on the vehicle-track coupling dynamics theory, and reveals the influence of plan parameters matching relation on the system dynamics performance. The research results show that when the curve radius is less than 7 000 m, the curve design parameters of the current codes are no longer applicable; under the condition of meeting the requirements of dynamics indexes and deficient/surplus superelevation limits, and in consideration of a certain safety margin, it is suggested that the curve radius of 400 km/h high-speed railway should not be less than 7 500 m; compared with the existing design requirements for under/over superelevation, the design of curve superelevation has a wider reasonable setting range in comprehensive consideration of the dynamic performance indicators of the vehicle-track system.Through the dynamic analysis, this paper puts forward the recommended value of the plan parameters matching of curve track under the condition of 400 km/h, and evaluates the safety margin. The research results can provide theoretical reference for the route plan design of 400 km/h high-speed railway.