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(上海市政工程設(shè)計(jì)研究總院（集團(tuán)）有限公司， 上海 200092)
［摘要］基于上海某地下通道工程基坑圍護(hù)結(jié)構(gòu)前期設(shè)計(jì)案例，借助Plaxis有限元軟件平臺對通道基坑的開挖回筑過程進(jìn)行數(shù)值模擬，探討基坑施工對周邊鄰近保護(hù)建筑的影響。計(jì)算結(jié)果表明，地下通道基坑開挖對保護(hù)建筑變形的影響滿足規(guī)范控制指標(biāo)的要求。有限元法數(shù)值模擬可在基坑圍護(hù)結(jié)構(gòu)設(shè)計(jì)的前期階段發(fā)揮指導(dǎo)作用。
［關(guān)鍵詞］基坑施工； 鄰近建筑； 變形； 有限元分析
中圖分類號： TU93, TU46+3 文獻(xiàn)標(biāo)識碼： A文章編號： 1002-848X(2015)S2-0112-04
作者簡介：裴琦，碩士，工程師，Email：peiqi@smedi.com。
Finite element analysis of foundation pit construction with adjacent buildings
Pei Qi
(Shanghai Municipal Engineering Design General Institute (Group) Co., Ltd., Shanghai 200092, China)
Abstract: Based on the foundation pit retaining structure preliminary design of an underground tunnel in Shanghai, the numerical simulation of foundation pit excavation process was carried out using finite element (FEM) software Plaxis. The influences on adjacent buildings during the excavation process was discussed. The results show that deformation of the buildings nearby caused by the excavation could meet the requirements of the specification control standards. The FEM numerical simulation can play a guiding role in the early stages of retaining structures design.
Keywords: foundation pit construction; adjacent building; deformation; FEM analysis
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