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底座板是CRTSⅠ型板式无砟轨道的最基础部分,是轨道板和路基(桥梁)的连接部分,起到承上启下的传力作用。凸台是控制轨道板纵横向移动的最重要设施,它们的标高、内在和外观质量的好坏,直接关系到无砟轨道的整体工程质量和美观。所以,控制好底座板和凸台施工的质量是无砟轨道工程成败的关键之一。
The base plate is the most basic part of the CRTS Ⅰ plate ballastless track, which is the connecting part between the track plate and the subgrade (bridge), which plays the role of transmission force. The boss is the most important facility for controlling the longitudinal and transverse movement of the track slab. The elevation, inner quality and appearance quality of the boss are directly related to the overall engineering quality and aesthetics of the ballastless track. Therefore, controlling the quality of the base plate and the boss construction is one of the keys to the success or failure of the ballastless track project.