[关键词]
[摘要]
现浇道岔道床岔枕离散,道岔组装工序繁琐,道岔组装需消耗较长工期,而现有预制道岔道床结构复杂、施工工序多、通用性较差,因此在既有预制道岔板的基础上,提出和研发了一种新型的装配式道岔道床,并从平面廓形、控制性尺寸、承轨台、限位结构、隔离层/减振层、转辙机安装预留接口等方面进行了优化设计和研究创新,且在实际工程中成功予以实践。与既有预制道岔道床相比,该种新型装配式道岔道床的生产和施工便利性显著增强,具有十分广泛的应用前景。
[Key word]
[Abstract]
The cast-in-place turnout bed and turnout sleepers are discrete, and the assembly process is cumbersome and requires a long construction period. The existing prefabricated turnout track bed has complex structure, multiple construction procedures, and poor versatility. On the basis of the existing prefabricated turnout track structure, a new type of prefabricated turnout bed was proposed and developed, expounds the optimized design and research innovation in the aspects of plane profile, control dimension, rail bearing platform, limit structure, isolation/damping layer, and the reserved interface for the installation of the switch machine. This new prefabricated turnout track structure has been successfully implemented in the actual project. Compared with the existing prefabricated turnout structure, the production and construction convenience is significantly enhanced, and it has a very broad application prospect.
[中图分类号]
U213.7
[基金项目]
北京市科技计划项目(Z151100001315008)、北京市科技计划项目(Z171100002117003)