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道岔是轨道结构的一个重要组成部分,当采用木枕和碎石道床时,在机车车辆的动力作用下,残余变形积累快,维修工作量大。为了提高道岔行车的稳定性,减少道床作业及节约木材等,广州铁路局,铁道部第二、三设计院,原北京地下铁道工程局和我院等单位共同协作,研究设计了一种新型结构的整体道床道岔,于1969年7月在京广线
Turnout is an important part of orbital structure. When the wooden pillow and the gravel bed are adopted, the residual deformation accumulates quickly and the workload of maintenance is heavy under the dynamic force of the locomotive and vehicle. In order to improve the stability of turnout traffic, reduce track bed operations and save timber, Guangzhou Railway Bureau, the Ministry of Railways II, III Design Institute, the former Beijing Metro Engineering Bureau and our institute and other units work together to study and design a new structure The overall track bed turnout, in July 1969 in Beijing Guang line