CTCS系统车站到发线有效长度优化方案研究

Study on Optimization Scheme of the Effective Length of Station Arrival-departure Line of CTCS System

车站到发线有效长度是城际铁路、市域铁路的主要设计标准之一,直接影响到车站的土建规模、建设工期、工程投资等。通过对CTCS系统相关技术进行研究,分析到发线有效长度的影响因素,提出优化既有参数(方案一)和设置进路保护区段(方案二)2种方案来缩短车站到发线有效长度。方案一对安全距离、ATP曲线与ATO曲线终点之间的距离等关键参数进行优化,优化后到发线有效长度为317m;方案二参考城市轨道交通CBTC系统,在接车进路出站信号机内方设置保护区段,对CTCS系统进行适应性修改,到发线有效长度可优化为253 m。CTCS系统车站到发线有效长度优化能够有效降低城际铁路和市域铁路工程的综合投资,将产生一定的社会和经济效益。

The effective length of station arrival-departure line is one of the main design standards of intercity railway and regional railway.It directly affects the civil construction scale,construction period and project investment.Through the research of relevant technology of CTCS system,the influencing factors of the effective length of station arrival-departure line are analyzed,two solutions including both optimizing existing parameters(scheme 1)and setting route protection section(scheme 2)are proposed to shorten the effective length of station arrival-departure line.For scheme 1,a pair of key parameters such as safety distance,distance between ATP curve and ATO curve endpoint are optimized,after optimization,the effective length of station arrival-departure line is 317m;the scheme 2 refers to the CBTC system of urban rail transit,a protection section is set inside the receiving route starting signal,the CTCS system is modified adaptively,the effective length of the arrival-departure line can be optimized to 253m.The optimization of route length based on CTCS system effectively reduces the comprehensive investment of intercity railway and regional railway projects and brings certain social and economic benefits.