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3D Elasto-plastic Numerical Simulation of Behavior of Group Piles
Author(s): 
Pages: 25-29
Year: Issue:  4
Journal: Journal of University of Science and Technology of Suzhou(Engineering and Technology)

Abstract: 利用三维弹塑性有限元,桩土界面间水平向位移相容、竖向设置具有双曲线型本构关系的非线性弹簧,对某桥矩形承台18根群桩基础竖向承载变形特性进行数值模拟分析,较好地模拟了大型群桩基础桩土间相互作用.通过分析承台荷载与承台沉降、桩顶轴力分布、桩顶轴力与承台荷载、桩顶轴力与桩顶沉降、桩身轴力分布及群桩基础沉降变形特性等,来研究承台群桩基础与土体共同作用的受力机理与变形机制,同时还分析了确定群桩基础的群桩效应...
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