津秦客运专线CRTSⅡ无砟轨道先导段底座板施工技术

摘要

Combined with the construction of base slab of CRTS-Ⅱ ballastless track of guiding section on Tianjin-Qinhuangdao passenger-dedicated line,this paper introduced the structure composition of CRTS-Ⅱ ballastless track and a series of construction processes,such as waterproof layer spraying,installation of shear nail,sliding layer paving,installation of concrete cushion,formwork supporting,steel bar engineering,concrete pouring and curing,longitudinal connection of base slab and so on.With this construction technology,the construction quality has been ensured,meeting requirements on precision of this project.%结合津秦客运专线CRTSⅡ无砟轨道先导段底座板的施工,介绍CRTSⅡ无砟轨道的结构组成,以及防水层的喷涂、剪力钉的安装、滑动层的铺设、混凝土垫块的设置、模板支护、钢筋工程、混凝土浇筑与养护、底座板的纵连等一系列施工工序.该施工技术确保了施工质量和工程精度要求.