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 high-speed 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 1 000 m and part of No.12 turnouts were used to limit the length to no more than 1 400 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
Key words
Station carrying capacity/Turnout type selection/Station throat/Headway time/Train operation simulation
维普
万方数据