既有高速铁路隧道对开行高速磁浮列车适用性  

Applicability of Existing High-Speed Railway Tunnels for Operating High-Speed Maglev Trains

作　　者：刘万明 刘洁鑫 李锦信 LIU Wanming;LIU Jiexin;LI Jinxin(National Maglev Transportation Engineering R&D Center,Tongji University,Shanghai 201804,China;Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China;Beijing Urban Construction Design&Development Group Co.,Limited,Beijing 100037,China)

机构地区：[1]同济大学磁浮交通工程技术研究中心,上海201804 [2]同济大学道路与交通工程教育部重点实验室,上海201804 [3]北京城建设计发展集团股份有限公司,北京100037

出　　处：《综合运输》2024年第4期15-22,共8页China Transportation Review

基　　金：国家重点研发计划项目(2016YFB1200600)。

摘　　要：既有高速铁路的线路空间线型、桥梁设施基本能够满足高速磁浮列车的开行要求,但隧道作为影响高速列车运行速度的重要因素,对于利用既有高速铁路开行磁浮列车的影响较大。空气动力学效应引起的隧道断面问题是影响隧道开行磁浮列车的主要因素,本文提出利用既有设计速度为250km/h与300~350km/h的高速铁路隧道开行高速磁浮列车的方案,包括降速、缩小列车断面积及提升车体气密性方案。以某双线铁路为例,原方案区间平均运行速度为204.8km/h。在不改变既有隧道断面的情况下,在既有高铁线路上开行磁浮列车,采用降速、缩小列车断面积及提升车体气密性方案,能够将区间平均运行速度提升至393.9~411.14km/h。由此得出,既有高速铁路隧道对开行磁浮列车具有一定的提速潜力。The spatial configuration and bridge infrastructure of existing high-speed railway lines generally meet the requirements for operating high-speed maglev trains.However,tunnels significantly impact the operating speed of high-speed trains and limit the utilization of existing high-speed railway lines for maglev operations.Aerodynamic issues in tunnel cross-sections are the primary factors affecting maglev train operations.This article proposes a scheme to operate high-speed maglev trains in existing high-speed railway tunnels designed for speeds of 250 km/h and 300-350 km/h.The scheme involves speed reduction,reducing train cross-sectional area,and improving vehicle air tightness.Using a dual-track railway as an example,the original scheme achieved an average operating speed of 204.8 km/h.Without modifying the tunnel crosssection,implementing the scheme of speed reduction,cross-sectional area reduction,and improved vehicle air tightness enables maglev trains to achieve an average operating speed of 393.9-411.14 km/h.Thus,existing high-speed railway tunnels have the potential to increase maglev train speeds.

关 键 词：高速列车 轮轨铁路 磁浮铁路 隧道工程 铁路运营 

分 类 号：U237[交通运输工程—道路与铁道工程]