为解决大型构件采用滑移方式移动存在的移动设备结构复杂、操作繁琐、轴线偏差控制难度大、施工效率低、运行成本较高等问题，依托深中通道钢壳混凝土沉管预制项目，研制出一套轮轨式台车移动系统。从总体设计、轮径选择、结构承载力复核、顶板设计和驱动设计等方面对轮轨式台车移动系统进行详细分析，开展现场试验，并进行效率及经济分析对比。实践证明，轮轨式台车移动系统移动工效高、同步性高，且轴线偏差控制满足规范和设计使用要求，可保证8万t级超大型构件移动过程安全高效。

Multiple problems will be encountered when the slip mode is adopted in the moving system of a large component. These problems include complex structure, fussy operation, difficult axis deviation control, low construction efficiency, and high operation cost. A moving system with a wheelrail trolley is designed and developed herein for a steelshell concreteimmersed tube prefabrication project in the ShenzhenZhongshan Link. A detailed analysis on this moving system is conducted from the aspects of the overall design, wheel diameter selection, bearing capacity review, roof design, and drive system design. A field test and a comparison of the construction efficiency and the economic benefits are conducted. The practical results show that the moving system with a wheelrail trolley has high construction efficiency and synchronization. Its axis deviation control also meets relevant specifications and design requirements, ensuring that ultralarge components with a weight exceeding 80 000 tons can be moved safely and efficiently.