同一信号机防护两条不同速度大号码道岔进路方案研究  

Research on Scheme for Protecting Two Large-number Turnout Routes with Different Speeds Using a Single Signal

作　　者：武汝涵 杨晖 张放 WU Ruhan;YANG Hui;ZHANG Fang

机构地区：[1]中国国家铁路集团有限公司工程管理中心,北京100844 [2]中国铁道科学研究院集团有限公司通信信号研究所,北京100081

出　　处：《铁道通信信号》2024年第8期88-93,共6页Railway Signalling & Communication

基　　金：中国国家铁路集团有限公司科技研究开发计划(N2022G037)。

摘　　要：当铁路信号机防护2条不同速度的大号码道岔侧向进路,且2条进路只能共用1组大号码道岔应答器组时,列控中心无法根据不同进路发送对应大号码道岔侧向速度,为此,对大号码道岔侧向速度控制原则进行研究。重点针对最不利行车许可原则和安全制动原则,提出2种设计方案进行比选。通过研究得出,若过岔后控车曲线是由140 km/h到120 km/h的降速曲线,且不同速度段均能平稳制动,则该组大号码道岔侧向速度宜按140 km/h描述。此外,建议工程设计时优先按照防护信号机内方一条为直向进路、另一条为侧向进路进行设计。研究结论对类似枢纽车站具有一定参考意义。When a railway signal is tasked with protecting two large-number lateral turnout routes with different speeds,and the two routes can only share one large-number turnout balise group,the train control center(TCC)cannot send the corresponding lateral speed signals of large-number turnout according to different routes.Therefore,this research investigated the principles of lateral speed control for large-number turnouts.Focusing on the principles of the most unfavorable train running permission and safety braking,two design schemes were proposed and compared.The research concluded that if the control curve after crossing the turnout is a deceleration curve from 140 km/h to 120 km/h,and if smooth braking is achievable in different speed segments,the lateral speed of this group of large-number turnouts should be described as 140 km/h.In addition,it is recommended to give priority to the design of a direct route and a lateral route within the protection signal.The research conclusions have certain reference significance for similar hub stations.

关 键 词：信号机 最不利行车许可 大号码道岔 侧向进路 控制曲线 安全制动 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]