Influence on lateral rigidity of offshore piles using proposed p–y curves
Influence on lateral rigidity of offshore piles using proposed p–y curves
复制标题
DOI：
10.1016/j.oceaneng.2010.11.007
复制
发表时间：
2011-02
影响因子：
5
通讯作者：
Sangseom Jeong;Youngho Kim;Jae-young Kim
中科院分区：
文献类型：
--
作者：
Sangseom Jeong;Youngho Kim;Jae-young Kim
采用试验研究和数值分析相结合的方法，对近海存款区桩土体系在水平荷载作用下的力学特性进行了初步研究。重点是在海洋粘土中的横向承载桩的土桩刚度。刚性和柔性桩分析进行了比较。基于现场和室内模型试验，提出了确定横向荷载传递曲线（p-y曲线）的框架。考虑到拟议的p-y曲线，对桩直径、桩长、桩弯曲刚度和地基反力模量等桩柔性参数进行了数值分析。分析表明，柔性桩的弯矩和侧移差异比刚性桩大。结果表明，p-y曲线对柔性桩的影响大于刚性桩，因此，p-y曲线的大小和分布在柔性桩设计中具有重要意义。
A fundamental study of pile–soil systems subjected to lateral loads in offshore deposit was conducted using experimental tests and numerical analysis. The emphasis was on the soil–pile rigidity of a laterally loaded pile in marine clay. Rigid- and flexible-pile analyses were conducted for comparison. A framework for determining the lateral load transfer curve (p–y curves) is proposed based on both field and laboratory model tests. A numerical analysis that takes into account the proposed p–y curves was performed for the pile flexibility parameters such as pile diameter, pile length, pile-bending stiffness, and the modulus of subgrade reaction. Based on the analysis, it is shown that the differences in bending moment and lateral displacement are more significant for flexible piles rather than rigid piles. It was found that the p–y curves influence the behavior of flexible piles more than rigid piles, thus the magnitude and distribution of the p–y curves are significantly important in flexible pile design.