Discussion on the Standard of Main Line Spacing for 600 km/h High-speed Maglev

Research purposes：Line spacing is an important parameter for route selection，which is affected by the basic building limit of maglev train，train rendezvous pressure wave，vehicle dynamic performance and other factors. Based on the research requirements of 600 km/h high-speed maglev superconducting electric levitation，and referring to the research results of high-speed maglev and high-speed railway system，this paper studies the line spacing of superconducting electric levitation from the aspects of aerodynamic performance，safe space，magnetic field fluctuation and engineering cost，and gives the suggested values of line spacing parameters. Research conclusions：（1）Numerical simulation analysis based on aerodynamics：the influence on the pressure wave/ aerodynamic force of the car body surface rendezvous in the open line section is greater than that in the tunnel.（2）The train transverse displacement corresponding to the line spacing of 5.4 m to 6.0 m is less than the U beam sidewall guide clearance 64 mm，which meets the requirements of the sidewall guide clearance.（3）The line spacing of 5.8 m is more beneficial to save engineering investment and reduce vehicle cost，and to meet the requirements of magnetic field fluctuation distribution of superconducting magnets. （4）The research results can be applied to the line design of high-speed maglev project © 2024 Editorial Department of Journal of Railway Engineering Society. All rights reserved.