摘要
以武汉老铺片商业及住宅项目深基坑工程为背景,采用有限元软件PLAXIS对其进行了基坑开挖全过程的数值模拟分析,结合模拟计算结果分析了复杂条件下基坑支护结构体系及周边环境的受力、变形情况。数值模拟计算及实测结果表明:支护结构、周边建(构)筑物及土体的变形均满足规范关于变形控制的要求,证明采用Pl AXIS HS模型能够较好的完成复杂条件下基坑开挖对周边环境变形影响的数值模拟分析,同时也证明本工程采用的支护及半逆作施工方法,能够对复杂条件下基坑开挖对周边环境变形的影响起到有效控制作用。
For the deep foundation pit of Laopupian Commercial and Residential Building, the whole process of its excavation is simulated and analyzed by use of the finite element software PLAXIS. The situations of stress and deformation of supporting structures of foundation pit and surrounding environment under complex conditions are studied. The numerical analysis and monitoring results show that the deformations of supporting structure system of the foundation pit and the surrounding environment can meet the requirements of the specifications for deformation control. It proves that PLAXIS HS model can effectively simulate and analyze the deformation of the surrounding environment influenced by excavation of the foundation pit, and the semi-inverse method used in this project can effectively control the deformation of the surrounding environment influenced by excavation of the foundation pit under complex conditions.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2014年第S2期330-336,共7页
Chinese Journal of Geotechnical Engineering
基金
武汉市建设科研项目(201226)
关键词
复杂条件
基坑开挖
周边环境影响
数值模拟
complex condition
foundation pit excavation
surrounding environment influence
numerical simulation
