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《Chinese Journal of Underground Space and Engineering》 2017-03
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Finite Element Analysis of Earth Berm Wxcavation Pit Traits Affect Section Properties

Liu Chang;Sun Pan Pan;Zhao Luwei;Li Wenjie;Department of Civil Engineering,Tianjin University;  
According to the interaction mechanism of earth berm and supporting structures,the influences of earth berm width,height,slope,slope steps,area and other cross-sectional characteristics are calculated and analyzed on the supporting structure displacements and the supporting structure internal forces with the method of finite element analysis.The calculation results show that as the growth of the earth berm width,height and slope,envelope forces and displacements of the supporting structure increases,but the development of these section properties to a certain value,the growth trend of the internal forces and displacements of the supporting structure has gradually stabilized.Earth berm area is a determining factor of the forces and displacements of the supporting structure,when the earth berm area is the same,retaining structure forces and displacements are basically the same after the completion of excavation,but with the growth of time after construction,the aspect ratio determines the development trends of change rate of the envelope displacement and bending moment.Through the analysis of specific project example,the result shows that when earth berm area is the same,slope steps does not affect the force and displacement of earth berm,reasonable slope steps should be chosen based on the degree of difficulty of the construction site.
【Fund】: 国家重点基础研究发展计划(973计划)(2010CB732106);; 天津市科技计划项目(11ZCGYSF00800)
【CateGory Index】: TU753
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【Citations】
Chinese Journal Full-text Database 7 Hits
1 Liu Chang;Sun Panpan;Zhao Xin;Liang Fenglin;Department of Civil Engineering,Tianjin University;Tianjin Municipal Engineering Design and Research Institute;;Finite Element Analysis of Time Effect Influence on Foundation Pit[J];地下空间与工程学报;2015-S1
2 GONG Jian1,2,WANG Xu-jun2,ZHAO Xi-hong3(1.Shanghai Construction Engineering Group,Shanghai 200080,China;2.Department of Building Engineering,Tongji University,Shanghai 200092,China; 3.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China);Analysis of effect of first-level basin excavation on deformation of deep and large foundation pits[J];岩土力学;2013-02
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Liu Chang;Sun Pan Pan;Zhao Luwei;Li Wenjie;Department of Civil Engineering,Tianjin University;;Finite Element Analysis of Earth Berm Wxcavation Pit Traits Affect Section Properties[J];地下空间与工程学报;2017-03
2 Du Huifang;China Railway 11th Bureau Group 5th Engineering Co.Ltd.;;Research on the Retaining Structure Selection of Deep Foundation Pit and Its Risk Control in the Floodplain Area[J];铁道建筑技术;2017-05
3 Cheng Yuanhui;Hu Lifeng;Xie Zhengbing;Liu Nianwu;Keqiao District Construction Quality and Safety Supervision Center;School of Civil Engineering and Architecture,Zhejiang Sci-Tech University;;Study on the pile supported system of supplementary excavation beneath constructed buildings[J];山西建筑;2017-13
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【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 WANG Xujun(Department of Building Engineering,Tongji University,Shanghai 200092,China);ANALYSIS OF RETAINING WALL DEFORMATION FOR DEEP AND BIG FOUNDATION PITS OF PODIUM IN SHANGHAI TOWER[J];岩石力学与工程学报;2012-02
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