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三开道岔作为特殊的道岔型式,目前在城市轨道交通中仍处于初步应用阶段。研究三开道岔在轨道交通中的应用情况,对于今后新建轨道交通线路的设计、建设以及三开道岔的维护保养、运营处置均具有指导意义。通过三开道岔在上海轨道交通线路中的结构介绍以及与单开道岔应用性的比较分析,得出了应用三开道岔的适用场景,并从建设施工、维护保养、应急处置等方面提出了应用三开道岔的针对性措施。最后指出在日常运营中列车临时出入的存车线岔道则可选用三开道岔。
As a special type of turnout, the three-turnout is still in the initial stage of application in urban rail transit. Studying the application of the three-turnout in rail transit will be of guiding significance to the design and construction of the new rail transit line and the maintenance, operation and disposal of the three-turnout in the future. Through the introduction of the structure of the three-turnout switch in the Shanghai rail transit line and the comparative analysis of its application with the single turnout, the applicable scene of the three-turnout was obtained and put forward the application from the aspects of construction, maintenance and emergency treatment Three-turnout targeted measures. Finally, it points out that in the daily operation, the temporary exit of the train can be used as the three-way turnout.