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《Journal of Suzhou University of Science and Technology(Engineering and Technology)》 2009-04
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3D Elasto-plastic Numerical Simulation of Behavior of Group Piles

YU Jin1,2(1.Institute of Geotechnical Engineering,Huaqiao University,Xiamen 361021,China;2.Engineering Institute of Engineering Corps,PLA University of Science and Technology,Nanjing 210007,China)  
Interaction between group piles and rectangle shaped cap in a bridge was analyzed with 3D elastoplastic finite element method.The spring model was used in hyperbolic constitutive equation to model the pilesoil-pile interaction under the vertical load assuming consistency of horizontal displacement on the interface between pile and soil.The curve of settlement and load of pile foundation,the distribution of axial force on pile top,the curve of load or settlement on cap and axial force on top pile,the distribution of axial force on pile,behavior of group pile foundation and efficiency of pile groups were thoroughly analyzed with numerical analytical results.
【Fund】: 福建省自然科学基金资助项目(2009J05125);; 华侨大学高层次引进人才科研基金资助项目(08BS414)
【CateGory Index】: TU473.1
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