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u??[? ????I +AcHlgalz@.Uo Ac rSIIIN?? j结合上海市某住宅楼项目基坑工程,采用大型岩土分析软件Plaxis-2D对基坑开挖全过程进行数值分析。根据数
值模拟的结果,对基坑围护结构体系的受力、变形情况以及基坑开挖对周边环境的影响进行了分析。结果显示:相关
指标均在规范要求的控制范围内,所采用的围护结构在基坑开挖的过程中能够有效地控制对周边环境的影响。关键词:狭小空间;基坑开挖;周边环境;围护结构;Plaxis-2D分析中图分类号:TU753 文献标志码:A 文章编号:1〇〇4_1〇01(2〇2〇)〇1-00〇9 _〇3 D O I: 10.14144/j.cnki.jzsg.2020.01.003期产术较范新-新 台+ 卷产+较三品产^品 台+ 成台三产化术示-台产 科-示 团准^术水术示-台产 台产 海三发发台三产化-产平
Environment Under Condition of Narrow SpaceVCA Chaom_jM_33LM_j f3_3L■c W_ C zMzp z3 \ 2 r“■_j“■M l \ _CzLp—zM\ _ fL\p8% r“■_j“■M iJDDDI% l“M_■NCG—l.d—s Combined on the foundation pit engineering of a residential building project in Shanghai, the large-scale
geotechnical analysis software Plaxis-2D is used to carry out numerical analysis of the entire excavation process.
According to the results of the numerical simulation, the stress and deformation of the foundation pit support structure
system and the influence of foundation pit excavation on the surrounding environment are analyzed. The results show that
the relevant indicators are within the control range required by code, and the adopted support stmcture can effectively
control the influence on the surrounding environment in the process of foundation pit excavation.Hwo、bCnjO narrow space; foundation pit excavation; surrounding environment; support structure; Plaxis-2D analysis? ?<? ?t
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