地铁折返站折返能力计算及其参考图研究  

In-depth Study and Reference Diagram of Metro Turn-back Station Capacity

作　　者：张雨洁 王文波 ZHANG Yujie;WANG Wenbo(Transportation Engineering College,Lanzhou Jiaotong University,Lanzhou 730070,China;China Railway Liuyuan Group Co.,Ltd.,Tianjin 300308,China)

机构地区：[1]兰州交通大学交通运输学院,兰州730070 [2]中铁第六勘察设计院集团有限公司,天津300308

出　　处：《铁道标准设计》2020年第11期141-148,共8页Railway Standard Design

摘　　要：列车折返能力不仅是确定城市轨道交通全线列车运输能力的基础,也是整个城市轨道交通系统运营组织的关键。一般情况下,车站折返能力大小决定了线路的最大通过能力,因此为保证整个地铁的最大通过能力、节约设备费用、降低运营成本,必须要合理有效的设计折返站车站型式。本文调研了国内外部分城市起终点站采用的折返方案现状,对典型站前站后折返车站进行分析,立足于对主要折返流程进行的细化模拟计算,总结出影响折返能力的诸多因素:如系统能力、线路条件、道岔型号、车辆参数、停车时间等,并进行详细分析,从而提出折返站应优先推荐采用站后折返型式、分期建设线路采用站前折返时宜尽快延伸、站前折返可通过增加停车线来改进折返流程、提高道岔型号以提高折返速度和减少线间距缩短道岔区占用时间以提高系统能力等方案。The metro turn-back ability is not only the basis of determining the train transportation capacity of the whole line of urban rail transit,but also the key of the operation organization of the whole urban rail transit system.In general,the capacity of the station turna-back determines the maximum transit capacity of the line.In order to ensure the maximum transit capacity of the whole subway,save equipment expenditure and reduce operating cost,it is necessary to design a reasonable and effective type of turn-back station.This paper researches the present situations of turn-back schemes employed by terminal stations in some cities at home and abroad,and analyzes typical turn-back stations both behind and in front of station.Based on detailed simulation and calculation of main burn-back process,factors influencing the turn-back capacity are summarized,such as system capacity,line condition,switch model,vehicle parameters,parking time and so on.Thus,the following schemes are proposed to improve system capacity:prioritization of behind station turn-back mode;fast extension for staged construction in the case of in-front-of-station turn-back mode;improving burn-back process by adding stop lines to in-front-of-station turn-back;speeding up turn-back by raising turnout type and shortening distance between lines to reduce turnout area occupation time.

关 键 词：地铁 车站 折返能力 站前折返 站后折返 车站型式 道岔型号 停站时间 线路条件 

分 类 号：U231.4[交通运输工程—道路与铁道工程]