上海轨道交通12号线正线轨道设计要点

Key Points in the Main Line Track Design for Shanghai Rail Transit Line 12

针对上海轨道交通12号线工程的轨道设计,系统总结了正线轨道专业设计情况,全面介绍了轨道设计概况、技术标准及轨道结构,重点阐述了道岔钢桁架长轨枕和预制道岔板、CPⅢ轨道基础控制网和预制钢弹簧浮置板等技术创新项目,介绍了道岔区排水采用独立集水井和潜水泵、杂散电流端子采用新型埋入式端子等优化设计。总结了该工程项目的设计经验和存在的不足之处,提出了改进建议和意见,以使后续项目轨道专业设计更完善、更精细、更合理。

Professional design of the main track for Shang- hai rail transit Line 12 is systematically summarized, the general situation of track design, technical standard, track structure and so on are introduced comprehensively. In which, the technical innovations of turnout steel truss long sleeper and the use of prefabricated switch board are mainly described. Also, the adoption of the separate drainage wells and the submersible pumps in the turnout area, as well as the optimization design of the new embedded termi- nal stray used in current terminals are introduced. Finally, the design experiences and shortcomings in practical pro- jects are summarized, suggestions are put forward to make the professional track design of the follow - up projects more perfect, precise and reasonable.