长沙轨道交通1号线尚双塘站配线能力系统分析

Systematic Analysis of the Distributing Line Capacity of Shangshuangtang Station on Line 1 of Changsha Urban Mass Transit

为了满足列车正常折返与进、出车辆段,灵活解决实际运行中的需求,需要设置终点站配线。重点研究站后折返方式,分析站后单线折返和双线折返的技术作业流程及特点,得出影响折返能力的发车间隔,并通过案例计算,在分析终点站配线系统能力的基础上,对比分析了长沙轨道交通1号线尚双塘站在折返线兼入段线、出入线单独接入和出入段线从正线的两侧接入两种配线方案下的折返能力和出入段能力,比较不同站后折返形式折返能力的大小,得出方案一在出段能力、咽喉能力和发车能力上优于方案二,综合考虑最终推荐方案一。该分析可为今后城市轨道交通的同类线路设计提供有益参考。

In order to meet the requirements of normal train turn back and entrance and exit depot,flexibly solve the actual operation,the distributing line needs to be set.This paper focuses on the study of turn back mode after station,analyzes the technical operation process and characteristics of single line turn back and double line turn back after station,obtains the departure interval that affects turn back capability,and through case calculation,on the basis of analyzing the terminal station wiring system capability,compares and analyzes Shangshuangtang station of Changsha urban mass transit Line 1 in turn back line and entrance line,entrance and exit line access separately,and entrance and exit line from the main line.The turnback capacity and entrance and exit section capacity of two wiring schemes are connected on both sides of the line,and the turnback capacity of different stations is compared.It is concluded that scheme 1 is superior to scheme 2 in terms of exit section capacity,throat capacity and departure capacity.Finally,scheme 1 is recommended after comprehensive consideration.This analysis can provide a useful reference for the similar line design of urban rail transit in the future.