公路、铁路立交桥路基注浆加固试验  

Experiments on the Road Bed Strengthening of an Overpass Bridge

作　　者：朱永全[1] 张海龙[1] 马培德[1] 

机构地区：[1]石家庄铁道学院铁道建筑系

出　　处：《石家庄铁道学院学报》1993年第2期79-83,共5页Journal of Shijiazhuang Railway Institute

摘　　要：本文介绍了北京石景山地区广宁公路与丰沙铁路立交桥路基加固试验。试验结果证明,对于高大跨度和净空的立交桥箱体,在横穿路基施工过程中,为防止土体塌坍,确保铁路运输安全,施工前对路基土体进行预注浆加固是必要的,技术上是可行的。This paper introduces the experiments on thc strengthening of railway bed by chemical grouting at Shijingshan Guangning Highway. The study results show that it is necessary and feasible to strengthening the road bed by grouting in advance in order to prevent the top and sidewall from collapsing and ensure traffic security when the railway overpass bridge of long span and large headway in soft foundation is to be constructed.

关 键 词：铁路 立交桥 化学注浆 加固 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]