LKJ控制车站多个高速道岔限速隐患分析及对策

Analysis and Countermeasures of Hidden Danger of Speed Limit on Multiple High-speed Turnouts in LKJ Control Station

因早期设计的局限性,LKJ在车站区域只能调用预先编制的唯一高速道岔股道数据(126股道数据)控制列车运行。当存在多条径路有高速道岔接车时,会出现LKJ调用的高速道岔股道数据限制速度、进出岔距离与列车实际运行状况不一致的问题,存在安全风险。为此,结合LKJ程序控制及LKJ基础数据源文件编制原则,在排查沈阳局管内所有接入高速道岔车站走行径路的基础上,归纳出5种典型场景,结合图例针对性地分析可能存在的安全风险,采取统一高速道岔限速值、提供特殊地点说明等解决措施,并提出改变行车方式和高速股道可输入股道号的可行性方案。现场应用效果表明:该方案能够解决现有车站具备多条径路接入高速道岔的安全隐患,具有一定推广价值。

Due to the limitations of early design,LKJ can only call the sole pre-prepared high-speed turnout track data(126 track data)to control the train operation in the station area.When there are high-speed turnouts on multiple paths for train receiving,the problem of inconsistency between the speed limit and the distance from and to the turnout called by LKJ and the actual running status of the train will occur,which poses a safety risk.Given this,based on the LKJ program control and LKJ basic data source document preparation principles,this paper summarizes five typical scenarios by investigating all stations connected to high-speed turnouts within the administration of Shenyang Railway Bureau,analyzes possible safety risks in combination with legends,adopts solutions such as unifying speed limit values of high-speed turnouts and providing special location instructions,and puts forward a feasible scheme for changing driving modes and inputting track numbers for high-speed tracks.The field application result shows that the scheme can solve the safety risks of existing stations with multiple routes accessing to high-speed turnouts,and has certain popularization value.