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研究目的:城轨交通线路中的辅助线与正线连接传统方式是采用单开道岔。如能在城轨交通轨道工程设计中使用对称道岔或三开道岔,可达到大幅度节省轨道工程投资之目的。研究方法:通过搜集调查了解我国各大城市的城轨交通辅助性配线形式及运营状况,分析对比对称道岔、三开道岔与单开道岔在结构特征及功能等方面的差别,并研究停车线、出入线在与正线连接时采用对称道岔和三开道岔时合理的平面布置。研究结果:在城轨交通轨道工程设计中采用对称道岔和三开道岔来替代单开道岔,可减少工程数量,降低造价,提高调车作业效率。研究结论:对称道岔和三开道岔在停车线和出入线上使用,是可行的、必要的,并应结合城轨交通建设工程抓紧研制、铺设。
Research purposes: The traditional way to connect the auxiliary line and the positive line in the urban rail transit line is to use single-turnout. If we can use symmetrical turnout or triple turnout in the design of urban rail transit orbit, the investment of orbit engineering can be greatly saved. Research Methods: Through the collection of surveys to understand the urban rail transit auxiliary wiring forms and operating conditions in China’s major cities, analysis and comparison of the symmetry of the turnout, the three open turnouts and single turnouts in the structural characteristics and function differences, and study the parking line , The access line is connected with the main line when using symmetrical turnout and turnout three reasonable plane layout. Research results: In the design of urban rail transit orbit engineering, the use of symmetrical turnout and triple turnout instead of single turnout can reduce the number of projects, reduce the cost and improve the shunting efficiency. Research conclusions: It is feasible and necessary that the symmetrical turnout and the Sanchuan turnout should be used on the parking line and the exit-entry line, and should be developed and laid in light of the urban rail transit construction project.