A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a connector for a prefabricated subway track bed, and belongs to the field of shield tunnel design. The connecting joint for the prefabricated subway ballast bed comprises a connecting joint part, the prefabricated subway track bed is formed by splicing a plurality of prefabricated track beds; a connecting joint part is arranged at an expansion joint between every two adjacent prefabricated ballast beds; every two adjacent prefabricated ballast beds limit the horizontal displacement or vertical displacement of the prefabricated ballast beds through the connecting joint parts. According to the connecting joint for the prefabricated subway track bed, the matched concave and convex joints are used for connecting the prefabricated track bed, the longitudinal telescopic function of the track bed is reserved, meanwhile, the stress of the track bed at the telescopic joint is optimized, the vertical and lateral displacement between the adjacent track beds is reduced, and therefore the occurrence of track surface irregularity is reduced, and the running safety of a subway train is guaranteed.
本发明涉及预制地铁道床用连接接头，属于盾构隧道设计领域。预制地铁道床用连接接头，包括连接接头部；预制地铁道床由若干预制道床相互拼接而成；每个相邻的预制道床之间的伸缩缝处设有连接接头部；相邻的两个预制道床通过连接接头部限制预制道床发生水平位移或上下位移。本发明是提供预制地铁道床用连接接头，利用相配合的凹凸接头连接预制道床，在保留道床纵向伸缩功能的同时，优化伸缩缝处道床受力，减少相邻道床间垂向及侧向位移，从而减少轨面不平顺的发生，保证地铁列车的运行安全。
The invention relates to a connector for a prefabricated subway track bed, and belongs to the field of shield tunnel design. The connecting joint for the prefabricated subway ballast bed comprises a connecting joint part, the prefabricated subway track bed is formed by splicing a plurality of prefabricated track beds; a connecting joint part is arranged at an expansion joint between every two adjacent prefabricated ballast beds; every two adjacent prefabricated ballast beds limit the horizontal displacement or vertical displacement of the prefabricated ballast beds through the connecting joint parts. According to the connecting joint for the prefabricated subway track bed, the matched concave and convex joints are used for connecting the prefabricated track bed, the longitudinal telescopic function of the track bed is reserved, meanwhile, the stress of the track bed at the telescopic joint is optimized, the vertical and lateral displacement between the adjacent track beds is reduced, and therefore the occurrence of track surface irregularity is reduced, and the running safety of a subway train is guaranteed.
本发明涉及预制地铁道床用连接接头，属于盾构隧道设计领域。预制地铁道床用连接接头，包括连接接头部；预制地铁道床由若干预制道床相互拼接而成；每个相邻的预制道床之间的伸缩缝处设有连接接头部；相邻的两个预制道床通过连接接头部限制预制道床发生水平位移或上下位移。本发明是提供预制地铁道床用连接接头，利用相配合的凹凸接头连接预制道床，在保留道床纵向伸缩功能的同时，优化伸缩缝处道床受力，减少相邻道床间垂向及侧向位移，从而减少轨面不平顺的发生，保证地铁列车的运行安全。