郑西铁路客运专线无砟轨道桥梁设计及思考

Design of and Thoughts on Ballastless Track Bridge of Zhengzhou-Xi'an Railway Passenger Dedicated Line

研究目的:郑州至西安铁路客运专线为我国第一条在湿陷性黄土地区修建的无砟轨道铁路客运专线,通过该线渑池至灵宝段无砟轨道桥梁设计关键技术问题的研究分析,解决在湿陷性黄土地区修建客运专线无砟轨道铁路桥梁的设计问题。研究结果:通过郑西线渑池至灵宝段无砟轨道桥梁设计关键技术问题的研究分析,提出了湿陷性黄土湿陷性厚度和负摩阻力取值原则、沉降计算方法和控制原则、桥墩横向刚度控制办法及相邻桥墩纵向线刚度控制原则,并提出了郑西线桥梁施工中需要注意的一些重要问题。

Research purposes:Zhenzhou-Xi an Railway Passenger Dedicated Line is the first ballastless track passenger line built in collapsible loess area in China.The researches are done on and the analyses are made of the key technologies for design of the ballastless track bridges in the section between Mianchi and Lingbao of the line for the purpose of solving the problems of design of ballastless track bridge of passenger dedicated line in collapsible loess area. Research results:Through making analyses of the ke...