深水海上风机吸力桶导管架基础承载特性
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Bearing Characteristics of Suction Bucket Jacket Foundation for Deepwater Offshore Wind Turbines
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    摘要:

    针对海洋深水环境,设计适应70 m水深的四桶导管架结构形式,并在此基础上设计相同高度和主腿斜度的三桶导管架基础。采用Abaqus有限元软件建立导管架结构-吸力桶-土体整体有限元模型,通过对比分析探究海上风电深水吸力桶导管架基础的承载力特性。研究发现:吸力桶与土体的位移一致性程度可反映基础水平极限承载力大小,四桶导管架基础的综合承载特性优于三桶导管架基础;加载高度对四桶导管架基础的水平承载力特性有重要影响,基础水平承载力随着加载高度增加逐渐减小;加载方向对四桶导管架基础水平承载力影响较小。

    Abstract:

    In view of the marine deepwater environment, the four-bucket jacket structure is designed to adapt to the water depth of 70 m. On this basis, a three-bucket jacket foundation with the same height and the inclination of the main leg is designed. The Abaqus finite element software is used to establish the overall finite element model of the jacket structure-suction bucket-soil. Through the method of comparative analysis, the bearing capacity characteristics of the suction bucket jacket foundation for deepwater offshore wind turbines are studied. The results show that: the fitting degree of the suction bucket and soil can reflect the horizontal ultimate bearing capacity of the foundation, and the comprehensive bearing capacity of the four-bucket jacket foundation is better than that of the three-bucket jacket foundation; the loading height is of an important effect on the horizontal bearing characteristics of four-bucket jacket foundation, and the horizontal bearing capacity decreases with the increase of loading height; the loading direction is of little effect on the horizontal bearing capacity of the four-bucket jacket foundation.

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赵一凡,张才亮,栾富豪,张融圣,刘寒秋,朱嵘华.深水海上风机吸力桶导管架基础承载特性[J].中国海洋平台,2024,(03):15-20

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  • 在线发布日期: 2024-06-25
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