Abstract: One hybrid method of finite element analysis of rod structure coupling with load transfer approach for piles groups settlement was estabished.The behavior of shear-diaplacement of the boundary between pile and ground was determined by the Randolph and Wroth’Model in the approached closed form solution,coupling with the hyperbolic model.The action of pile groups was evaluated from the Mindin equation solution,and adjusted by the "reinforcement and curtain"action approximately.The influences of nu

Key words: interaction of pile group, piles with rigid cap, settlement of pile group

摘要： 将杆系结构有限单元法与荷载传递迭代法相耦合,形成一桩基沉降分析计算的混合法.采用近似解析解中 RandolphandWroth??Model和双曲线模型相结合,模拟桩身与桩周介质边界上剪切滑移.桩间相互作用,在采用弹性 理论Mindlin方程解答计算,并考虑了桩间??加筋与遮帘??作用.分析了刚性承台下群桩桩数、桩长、桩间距和桩土模 量比等群桩工作特性的影响

关键词: 群桩相互作用, 刚性承台下群桩, 群桩沉降