CRTSⅡ型板式无砟轨道支承层的病害及整治  

CRTS Ⅱ Ballastless Track Supporting Layer of the Disease and Treatment

作　　者：章媛 何翔 姜景山[1] Zhang Yuan;He Xiang;Jiang Jingshan

机构地区：[1]南京工程学院建筑工程学院,江苏南京211167

出　　处：《江苏建材》2022年第2期76-78,共3页Jiangsu Building Materials

基　　金：江苏省产学研合作项目(BY2021044);江苏省大学生创新创业训练计划项目(202111276022Z)。

摘　　要：板式无砟轨道是我国高速铁路中应用广泛的形式之一,其支承层易出现混凝土开裂、粉化、与其他构件离缝脱空的现象,对无砟轨道结构的稳定性、耐久性及其他构件的静力、动力特性有一定影响,不利于列车安全行驶。根据支承层的伤损情况,整治分为修补与更换,对更换支承层时材料的选择及置换技术进行分析比较,为实际施工提供依据。Slab ballastless track is one of the widely used forms in my country’s high-speed railway. With the increase of service time, affected by external factors and its own properties, concrete cracking, pulverization and separation from other components appear in the support layer of slab ballastless track. The voiding and such defects exert certain negative impact on the stability, durability and other components of the ballastless track structure, which is not conducive to the safe running of trains, and then analyze the current support layer repair and replacement scheme.

关 键 词：板式无砟轨道 支承层 病害 整治 

分 类 号：U216[交通运输工程—道路与铁道工程]