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以太原漫滩地区某地铁车站施工为例,采用FLAC3D针对深基坑地连墙插入比的不同在基坑开挖全过程进行三维数值模拟,分析了深基坑的应力变化、地连墙不同插入比的基坑变形和地表的沉降,得出深基坑变形特征,从而验证基坑支护设计方案,对太原地铁车站基坑开挖后续设计及施工方案的优化和改进及变形预测都具有重要的意义。
Taking the construction of a metro station in the floodplain area of Taiyuan as an example, FLAC3D was used to simulate the whole process of foundation pit excavation according to the insertion ratio of continuous wall of deep foundation pit. The stress change of deep foundation pit was analyzed. Insert ratio of the deformation of the foundation pit and surface settlement, deep excavation deformation characteristics of the foundation pit to verify the design of foundation pit support design and construction of Taiyuan Metro Station pit excavation follow-up design and optimization and deformation prediction has Significance.