ANALYSIS ON LATERAL DEFORMATION BEHAVIOR OF MONOPILE FOUNDATION OF OFFSHORE WIND TURBINE UNDER COMPLEX CONDITIONS

被引：0
|
作者：
Ren Y. [1 ,2 ]
Han Z. [1 ]
Tang L. [3 ]
机构：
[1] Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding
[2] CGN New Energy Holdings Co.，Ltd, Beijing
[3] College of Civil Engineering and Architecture, Zhejiang University of Water Resources and Electric Power, Hangzhou
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 10期
关键词：
lateral deformation; monopile; offshore wind farm; pile foundation;
D O I：
10.19912/j.0254-0096.tynxb.2022-0905
中图分类号：
学科分类号：
摘要：
Based on a typical offshore wind farm project with complex conditions in Fujian，this research deeply analyzed the lateral loading behavior of the monopile foundation under complex conditions based on different p-y curve methods and proposed a method to determine the critical pile length of the monopile foundation based on the results of lateral deformation analysis. It is found that the selection of p-y curve in sandy soil stratum has a great influence on the calculation results of lateral deformation of monopile foundation. The lateral displacement and rotation angle of monopile foundation calculated by using the p-y curve in DNVGL specification are smaller than those calculated by considering the“pile diameter effect and initial stiffness correction”. The main reason is that the stiffness of the linear segment of p-y curve in sandy soil recommended by DNVGL specification is too large，which leads to the unsafe application of this method in engineering；There is a critical pile length in a monopile foundation，and its value is closely related to the lateral deformation behavior of the pile. © 2023 Science Press. All rights reserved.
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页码：376 / 383
页数：7
相关论文
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