沪渝蓉高铁大号码道岔应答器组优化研究及应用  

Optimization Research and Application of Balise Group for Large Number Turnout of Shanghai-Chongqing-Chengdu High-speed Railway

作　　者：张海东 ZHANG Haidong(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi'an 710043,China;State Key Laboratory of Rail Transit Engineering Information(FSDI),Xi'an 710043,China)

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043 [2]轨道交通工程信息化国家重点实验室(中铁一院),西安710043

出　　处：《铁道标准设计》2022年第12期143-148,共6页Railway Standard Design

基　　金：中铁第一勘察设计院集团有限公司科研课题(院科13-29)。

摘　　要：针对现有的大号码道岔应答器布置原则在特定运营场景下会出现列车超速过岔的问题,首先,对紧追踪运营模式及接车进路变更运营模式下存在的风险进行理论分析,发现在上述两种场景下列车均会出现危及行车安全的超速过岔风险;然后,分析应答器组报文信息的组成,进而采取大号码道岔报文及时停发防护策略以及大号码道岔应答器组位置优化设置方案,实现了对上述运营场景下列车超速过岔的防护;最后,以沪渝蓉高速铁路龙城线路所为实例,分别采用上述方法对不同运营场景下的列车运行曲线进行比对,结果表明,报文及时停发防护策略解决了紧追踪模式下后续追踪列车会以160 km/h速度超速过岔的风险。将大号码道岔应答器组设置地点移至U2S区段内方后,保证了接车进路变更模式下列车以不超过80 km/h的速度侧向过岔。工程实例验证了上述方法的可行性及可实施性,为高速铁路的安全运营提供保障。According to the existing layout principle of large turnout balise,the problem of train crossing turnout overspeed will occur in specific operation scenarios.Firstly,this paper makes a theoretical analysis on the risks in both the tight tracking operation mode and the changing operation mode of receiving route,and concludes that the risks of train crossing turnout overspeed in the above two scenarios endanger the driving safety.Then the composition of balise message information is analyzed,and the protection strategy of timely stopping and sending large turnout message,and the optimal setting scheme of large turnout balise group position are adopted,which realizes the protection of train overspeed crossing in the above operation scenarios.Finally,the above methods are used to compare the train operation curves in different operation scenarios based on Longcheng railway station of Shanghai-ChongqingChengdu High-speed Railway.The results show that the protection strategy of stopping message in time prevents the risk that the follow-up tracking train may overspeed at 160 km/h in the tight tracking mode.After the setting location of large turnout transponder group is moved to the inside of U2S section,the train can cross the turnout laterally at the speed of no more than 80 km/h in the changing mode of receiving route.The engineering practices verify the feasibility and enforceability of the above method and provide a strong guarantee for the safe operation of high-speed railway.

关 键 词：高速铁路 大号码道岔 应答器 超速防护 布置原则 优化控制 

分 类 号：U284[交通运输工程—交通信息工程及控制] U238[交通运输工程—道路与铁道工程]