高铁线路互联互通场景下大号码道岔应答器设置方案研究

Research on the Setting Scheme of Large-number Turnout Balise in the Interconnection Scenario Between High-speed Railway Lines

济青高铁与胶济客专在胶州北站互联互通,为满足不同线路间运输组织的需要,胶州北站设有多组42号大号码道岔,形成了连续大号码道岔的特殊场景。结合工程实际,针对该特殊场景进行分析,提出相应的应答器设置方案。方案一考虑在各大号码道岔防护信号机外方分别设置应答器;方案二、方案四考虑仅对应一组大号码道岔设置应答器;方案三考虑在第1组大号码道岔防护信号机外方再设置2组大号码道岔应答器。通过分析各方案动车组运行状态,从运输组织效率及行车安全方面进行比选,优选出场间采用虚拟信号机结合设置大号码道岔应答器的方案。经在现场实际应用,该优选方案保障了行车安全,提高了运输效率,节约了工程投资。同时,对类似胶州北站连续大号码道岔布置的特殊场景进行思考,提出合理建议以供后续工程设计参考。

Jinan-Qingdao High-speed railway and Qingdao-Jinan passenger dedicated line are interconnected at Jiaozhou North railway station.In order to meet the needs of transportation organization between different lines,Jiaozhou North railway station has multiple sets of No.42 large-number turnouts,resulting in a special scenario of continuous large-number turnouts.Based on engineering practice,an analysis is conducted for this special scenario and corresponding balise setting options are proposed.For option 1,balises are to be set outside all large-number turnout protection signals;for options 2 and 4,balises are only to be set for one corresponding set of large-number turnouts;For option 3,two large-number turnout balises are to be set outside the protection signal for the first set of large-number turnouts.By analyzing the operational status of EMUs in various options,and comparing different options from the aspects of transportation organization efficiency and operation safety,the scheme of using virtual signal and large-number turnout balises between yards is selected.Based on practical application on site,the selected scheme ensures operation safety,improves transportation efficiency,and saves engineering investment.At the same time,reasonable suggestions are put forward for the special scenario of continuous large-number turnouts layout similar to that at Jiaozhou North railway station for the reference for subsequent engineering design.