北京地区无缝线路整体道床下挡墙地基的设计特点和计算方法  

作　　者：许欣[1] 

机构地区：[1]北京市市政工程设计研究总院,100045

出　　处：《特种结构》2007年第1期85-88,92,共5页Special Structures

摘　　要：随着轨道及道床设计不断发展,轨道交通路堤结构上道床敷设方式逐步由碎石道床向整体道床上铺设无缝线路转变,根据梁轨相互作用的设计思想,对路基挡墙的设计提出了更高的要求。作者通过参加几条城市轨道交通路堤段的设计,总结出城市轨道交通路堤结构的设计特点及地基处理方法为今后设计提供参考经验。With the development of the track and ballast design, the rail structure on subgrade has changed from ballast to CWR laying on monolithic track-bed. Based on the theory of interaction force between beam and rail, the design of subgrade retaining wall must strengthen. Through the design of subgrade of urban rail transit, the structure characteristic of subgrade of urban rail transit is generalized, and the method of ground base disposal is concluded, which can be the reference of the future design.

关 键 词：整体道床 沉降 CFG桩 北京 无缝线路 

分 类 号：U213.152.2[交通运输工程—道路与铁道工程]