高速铁路车站道岔选型对咽喉长度及追踪间隔的影响  

Influence of Turnout Type Selection on Throat Length and Headway of High-Speed Railway Station

作　　者：胡楚璇 魏玉光[1] 于宗泽 HU Chuxuan;WEI Yuguang;YU Zongze(School of Traffic and Transportation,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学交通运输学院,北京100044

出　　处：《中国铁道科学》2024年第3期159-167,共9页China Railway Science

基　　金：中央高校基本科研业务费专项资金资助项目(2022JBQY006)。

摘　　要：针对高速铁路车站采用大号码道岔造成的咽喉长度过长、列车走行距离远等问题,在明确车站咽喉长度和列车间隔时间计算方法的基础上,依托某尽端式高铁车站进行仿真计算,先设计不同道岔选型优化方案,再探究道岔选型、列车进站前速度和第一离去闭塞分区(简称“一离去”)长度对车站咽喉长度及列车间隔时间的影响。结果表明:若车站全部或部分采用12号道岔,与全部采用18号道岔相比,尽管列车追踪间隔时间会小幅增加,但车站咽喉长度可分别缩短30.66%和13.40%;在站外线路受到一定地形条件制约的情况下,若全部采用12号道岔时列车区间限行速度为260 km·h^(-1)、部分采用12号道岔时限行速度为280 km·h^(-1),则可同时压缩车站咽喉长度与到达追踪间隔;若全部采用12号道岔时限制一离去的无岔区长度不超过1000 m,部分采用12号道岔时限制长度不超过1400 m,则可同时压缩车站咽喉长度与出发追踪间隔。Aiming at problems such as extra-long throat length and long train running distances caused by the use of large number turnouts in high-speed railway stations,based on the clear calculation method of the station throat length and train headway time,simulation calculations were carried out relying on a certain end type highspeed railway station.Firstly,optimization schemes of different turnout type selection were designed,and then the effects of turnout type selection,train speed before entering the station,and the length of the first departure block track section(short for“one departure”)on station throat length and headway time were explored.The results showed that if all or part of No.12 turnouts were used in the station,the station throat length could be shortened by 30.66%and 13.40%respectively,although the headway time of trains would slightly increase compared with that of No.18 turnouts.Under the condition that the line outside the station was restricted by certain terrain conditions,the limited speed of train interval was 260 km·h^(-1) when all of No.12 turnouts were used.The limited speed was 280 km·h^(-1) when part of No.12 turnouts were used,then the length of the station throat and the arrival headway could be compressed simultaneously.If all of No.12 turnouts were used to limit the length of the no-switch area in one departure to no more than 1000 m and part of No.12 turnouts were used to limit the length to no more than 1400 m,the station throat length and departure headway time could be compressed simultaneously.

关 键 词：车站通过能力 道岔选型 车站咽喉 追踪间隔时间 列车运行仿真 

分 类 号：U292.51[交通运输工程—交通运输规划与管理]