摘要
邻近既有地铁结构的基坑工程的开挖是一项具有较大风险源的工程,新基坑开挖必然会对既有地铁结构产生不利影响,以北京某邻近地铁车站的基坑工程为背景,采用FLAC3D进行了三维数值模拟,详细阐述了桩锚支护与变形缝的模拟方法,并通过计算结果分析了基坑工程施工对既有车站结构的影响,总结出了一些变形规律,并提出了具体的建议措施。
The excavation of deep foundation pit adjacent to the existing metro station structure is a project with great source of risk. The existing structure will inevitably be influenced by the excavation. Based on one example of excavation work close to a metro station in Beijing, the influence of excavation on metro station is studied by FLAC3D stimulation. The method for simulating pile-anchor retaining and deformation joints is proposed, at the same time it is very useful to the numerical simulation of foundation pit. Finally, some deformation rules are concluded, and specific measures are put forward.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2013年第S2期276-280,共5页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金项目(41001036)
