地铁辅助线设计研究

探讨地铁辅助线的设计方法及注意事项,包括:车辆段出入线一站或两站接轨方案的优缺点及接轨方式,出入线与正线立交需要的最小上、下线轨面高差和最小线间距诸因素的计算,一度停车位置的选定及如何满足缓坡设置的方法,一种小交路站前折返平面布置新图型,折返方式不同引起了安全保护距离有区别,停车线平面布置中安全线设置的推敲、最小线间距及有效长所考虑的因素,存车线需要的最小线间距、纵断面设计要求,安全线设置规定中的矛盾、探讨及信号制式对其设置的要求,道岔防护信号机与道岔间及道岔与站台间的距离要求等.

On the Design of Auxiliary Lines on Subway

In this paper, the design methods for auxiliary lines on subway and some comments involved are described In detail, including the merits and defects of the one-station and two -station junction modes for the exit and entrance lines of the depot; calculation of the track level difference between the exit and entrance line and the main line on the crossover, and of the minimum distance between tracks; selection of the position of the stop once and the layout of transition grade; a new pattern for the plan layout of small round trip turn back in front of the station; installation of safety siding In the plan layout of siding lines; minimum track distance and longitudinal profile for the siding lines; requirements for layout of the safety line by signal system; required distances between orotection signal and switches, and distances between switches and station platform, etc.