时速400km高速铁路曲线超高研究  

Study on Curve Superelevation of 400km/h High Speed Railway

作　　者：刘磊[1] LIU Lei(Railway Science and Technology Research and Development Center,China Academy of Railway Sciences,Beijing 100081 ,China)

机构地区：[1]中国铁道科学研究院铁道科学技术研究发展中心,北京100081

出　　处：《铁道建筑》2017年第4期91-94,101,共5页Railway Engineering

基　　金：中国铁路总公司科技研究开发计划(2015T005-A);中国铁道科学研究院基金(2015YJ121)

摘　　要：通过理论分析对时速400 km铁路线路最大曲线超高、欠超高以及最小曲线半径进行了研究,并建立列车通过高速铁路曲线地段动力学仿真计算模型,对不同工况下高速列车动力学各项安全性和平稳性指标进行计算分析。结果表明:时速400 km高速铁路最大曲线超高、欠超高、过超高、欠过超高之和、最大曲线超高与欠(过)超高之和等参数可以采用既有350 km/h高速铁路规范规定值;高速列车以400 km/h速度通过7 500,8 500,9 000 m半径曲线时,脱轨系数、轮重减载率、轮轴横向力等各项安全性指标均在限值以内;从平稳性方面考虑,高低速列车不共线运行时,对时速400 km高速铁路推荐最小曲线半径为9 000 m,一般条件下8 500 m,困难条件下7 500 m;高低速列车共线运行时,为了满足高低速匹配要求,推荐最小曲线半径为8 500 m。Based on theoretical analysis, the maximum curve superelevation, the deficient superelevation and the minimum curve radius of 400 km/h railway were studied. A dynamic simulation model of a train passing through high speed railway curve was different working conditions established, and the dynamic safety and stability indicators of high speed train under were calculated. The results show that the parameters such as the maximum curve superelevation, deficient superelevation, surplus superelevation, the sum of deficient superelevation and surplus superelevation, the sum of the maximum curve superelevation and deficient/surplus superelevation can be set up according to that of 350 km/h high speed railway specification. While 400 kin/h high speed train passing through the 7 500,8 500,9 000 m radius curve, the safety parameters such as derailment coefficient,wheel load shedding rate, axle transverse force etc are within the limits. Considering from the aspect of stability, while high speed train and low speed train run on different tracks, for 400 km/h high speed railway the recommended minimum curve radius is 9 000 m, or 8 500 m under normal conditions, or 7 500 m under difficult conditions. While high speed train and low speed train run on a single track, the recommended minimum curve radius is 8 500 m to meet the match requirements of high speed track and low speed track.

关 键 词：高速铁路 曲线超高 理论分析 数值计算 时速400 km高速铁路 安全性 平稳性 曲线半径 

分 类 号：U238[交通运输工程—道路与铁道工程]