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THE LATERAL IMPEDANCES OF SINGLE PILE AND PILE GROUPS IN LAYERED SOILS
Author(s): LEI Wenjun, WEI Demin
Pages: 36-
40
Year: 2004
Issue:
5
Journal: ENGINEERING MECHANICS
Keyword: 土动力学; 桩; 动力相互作用; 水平动力阻抗; 等效化法;
Abstract: 采用文克尔地基梁模型,在各分层土中建立单桩水平振动微分方程,利用各分层土之间桩的连续性条件和桩顶、桩底边界条件,求解单桩振动方程.结合单桩动力阻抗和相互作用因子求解群桩水平动力阻抗.根据能量守恒原则,利用桩的水平静载变形曲线求取分层土等效为均匀土层的参数,提出将分层土等效化为均匀土近似计算单桩和群桩水平动力阻抗的方法,通过算例分析,得到一些有意义的结论.
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