2005, Volume 7, Issue 12
Strategic Study of CAE >> 2005, Volume 7, Issue 12
Three Dimensional Finite Element Analysis of Cracks for Deep Mixing Wall
1.Geotechnical Engineering Institute, Hunan University of Science and Technology, Xiangtan , Hunan 411201, China
2. Fushan College of Science and Technology , Fushan, Guangdong 528000, China
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Abstract
Aiming at the cracks of supporting structure of deep mixing wall, the elastoplastic behavior of internal force and deformation of deep mixing wall is analyzed in this paper. According to Mindlin plate theory, the thick plate model and three dimensional finite element model of wall are set up. Considering vertical and horizontal bending moment and tortile moment action together, equivalent bending moment is proposed in this paper to evaluate anti-bend capability of wall. Using the program developed by authors, spatial shape of horizontal displacements and equivalent bending moments of wall of supporting structure of deep mixing wall are gained. The calculation results indicate that the cracks of wall are mainly caused by strut´s loads of Huanqiu Plaza beside east of wall.
Keywords
cracks ; deep mixing wall ; thick plate ; equivalent bending moment ; three dimensional finite element
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References
[ 1 ] 方明.水泥土围护桩墙裂缝稳定分析[J].地基基础, 1998, (2) :39~40 link1
[ 2 ] 宰金璋.水泥土挡墙的变形及其计算[A].朱百里编.第四届全国地基处理学术讨论会论文集[C], 杭州:浙江大学出版社, 1995.253~257
[ 3 ] Owen D R J, Hinton E.Finite elements in plasticity—theory and practice[M].Pinerige Press Limited, 1980
[ 4 ] 刘建航, 侯学渊.基坑工程手册[M].北京:中国建筑工业出版社, 1997 link1
[ 5 ] 高文华.深基坑支护墙体受力变形分析的粘弹性地基厚板理论[D].上海:同济大学, 1998
[ 6 ] 高文华, 杨林德.基于Mindin板理论的深层搅拌桩墙体受力变形的空间效应[J].土木工程学报, 1999, 32 (2) :71~75 link1
[ 7 ] 高文华.地基模型的时效性分析与刚度计算[J].岩土力学, 1998, 19 (4) :25~30 link1
[ 8 ] 高文华, 沈蒲生, 杨林德.深基坑支护结构内力与变形时空效应分析的程序实现[J].土木工程学报, 2003, 36 (2) :86~90 link1
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