摘要
城市地下工程活动中,在已有的地铁车站周围进行深基坑开挖问题是一项难度较高的工程。当基坑必须与既有车站共用一幅连续墙,并且开挖深度比既有车站更深时,工程难度更高。通过建立三维板壳有限元模型,分析该类基坑开挖对既有车站结构内力的影响,讨论了基坑开挖对既有车站共用墙体和车站内顶、中、底板的内力影响,得到了一些内力变化规律。
During the construction of underground work in cities, it is a difficult project that the excavation of a pit is close to an existing metro station. When the pit has to use a common wall of the station as supporting structure and is deeper than the underground metro station, the project is more difficult. By three-dimension shell finite element, the influence of a pit excavation on the internal forces of an existing metro station was analyzed. For the common diaphragm walls of the existing metro station and the newly built pit, the variety of bending forces was discussed. And the internal force variety of the floors in the existing metro station was also discussed.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2006年第B11期1411-1414,共4页
Chinese Journal of Geotechnical Engineering
关键词
深基坑
地铁车站
内力分析
空间计算
deep pit foundation
metro station
internal force
spatial calculation
