砂土中海上风机四桩导管架基础水平受荷分析方法
发布时间：2019-08-08 20:33
【摘要】：针对海上风机四桩导管架基础受荷特性与常规水平荷载作用位置较低的群桩基础不同的问题,提出适用于海上风机导管架基础的水平受荷分析方法.通过分析导管架基础离心模型试验的结果,发现海上风机导管架基础各基桩在承受水平荷载的同时也受到较大的轴向荷载作用,这会改变桩周土的有效应力和水平抗力.基此提出同时考虑群桩效应和基桩桩身轴力影响的p乘子,从而获得导管架基础基桩的p-y曲线.采用SACS数值分析软件获得导管架基础沿边长加载和沿对角线加载时基础的变形和内力.结果表明,根据该文提出的导管架基础水平受荷分析方法得到的计算结果与离心模型试验吻合较好,适用于砂土中海上风机四桩导管架基础的工程设计.
[Abstract]:In order to solve the problem that the loading characteristics of offshore fan four-pile jacket foundation are different from those of pile group foundation with low position of conventional horizontal load, a horizontal load analysis method suitable for offshore fan jacket foundation is proposed. By analyzing the results of centrifugal model test of jacket foundation, it is found that each foundation pile of offshore fan jacket foundation is subjected to large axial load while bearing horizontal load, which will change the effective stress and horizontal resistance of soil around pile. In this paper, a p multiplier considering both the pile group effect and the axial force of the foundation pile is proposed, and the p 鈮，
本文编号：2524589
[Abstract]:In order to solve the problem that the loading characteristics of offshore fan four-pile jacket foundation are different from those of pile group foundation with low position of conventional horizontal load, a horizontal load analysis method suitable for offshore fan jacket foundation is proposed. By analyzing the results of centrifugal model test of jacket foundation, it is found that each foundation pile of offshore fan jacket foundation is subjected to large axial load while bearing horizontal load, which will change the effective stress and horizontal resistance of soil around pile. In this paper, a p multiplier considering both the pile group effect and the axial force of the foundation pile is proposed, and the p 鈮，
本文编号：2524589
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