摘要
以盖挖逆作法深基坑的实际工程为背景,利用大型非线性有限元软件ABAQUS建立了考虑结构-土相互作用的三维有限元分析模型,模拟了地下墙、楼板、柱的施工和土体分层开挖的施工过程,并针对三维有限元分析的结果,讨论了盖挖逆作法基坑开挖过程中地表沉降、地下连续墙内力和变形等变化规律。
Based on the engineering of foundation pit excavation by top-down method,the three-dimensional finite element analysis model which considered the structure-soil interaction is carried out by the famous nonlinear finite element program ABAQUS. The construction process of diaphragm wall,strut,upright post and the excavation by layer are performed in the model. Basd on the results of the three-dimensional finite element analysis,the variation law of surface settlement and internal force and deformation of underground continuous wall are discussed.
引文
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