摘要
北京地铁五号线左线隧道穿越南护城河桥下,首次采用扩大断面四层支护的结构,洞内桩基托换方案,截断护城河桥三排共4根桩。采用有限元软件Ansys平面动态模拟洞内桩基托换,研究洞内桩基托换对地面、桥梁的影响,并提出安全托换的建议。
The fifth subway line in Beijing under passed the fencing river. It＇s the first time to enlarge the tunnel section to underpin and cut the piles of the fencing river bridge in tunnel in China. This paper uses finite element analysis to study the influence of pile underpinning in tunnel on bridges above. And some advice is proposed to ensure safety and stable pile underpinning in tunnel.
出处
《石家庄铁路职业技术学院学报》
2007年第2期38-41,共4页
Journal of Shijiazhuang Institute of Railway Technology
关键词
地铁隧道
洞内桩基托
有限元模拟
metro tunnel pile underpinning in tunnel finite element analysis
