摘要
结合北京地铁7号线双井站1号风道临时竖井施工,介绍了高承压水下深基坑开挖支护中采取的各种止水、降水措施,重点介绍了真空降水的原理及其施工工艺,有效地控制了流沙现象,保证了基坑的安全稳定,为类似工程提供指导性建议。
Combining high pressure deep vertical well of Beijing metro Line 7 subway, the author introduced various measures of sealing up and vacuum rainfall of deep excavation in the condition of high pressure water. Finally, the author introduced principle and construction technique of vacuum rainfall which effectively control quicksand, guarantee safety of excavation and provide suggestions for similar engineering.
出处
《科技创新与生产力》
2012年第2期66-69,共4页
Sci-tech Innovation and Productivity
关键词
基坑工程
高承压水
竖井
流沙
施工技术
excavation engineering
high pressure water
vertical well
quicksand
construction technology
