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Assessment of offshore wind turbine with an innovative monopile foundation under lateral loading

机译:侧向载荷下具有创新纪用基础的海上风力涡轮机的评估

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摘要

The increasing demand for offshore wind turbines with larger capacity brings challenges concerning their original foundation design. This study introduces a new type of monopile foundation with internal restriction plates that aim to enhance the bearing capacity of the entire structure. Two types of improved monopiles are proposed through the addition of one-hole and four-hole restriction plates. A series of centrifuge tests are performed to study the response of the improved piles under lateral loading conditions in saturated sand. The pile-soil interactions are characterized using finite element analysis. A sensitivity study and a parametric study are performed using numerical tests. In offshore applications, the improved pile can provide larger lateral resistances than the open-ended pile foundation. This improvement is proportional to the pile diameter. The four-hole restriction plate is more effective than the one-hole plate for larger diameter piles. The rotational axis is located at 80 % of the embedment depth, and the distribution of earth pressure is determined. A theoretical method is proposed to calculate the ultimate lateral capacity of the novel monopile containing restriction plates.
机译:具有较大容量的近海风力涡轮机的需求越来越大,挑战了其原始基础设计。本研究介绍了一种具有内部限制板的新型纪用基础,旨在提高整个结构的承载力。通过添加一个孔和四孔限制板来提出两种改进的单一。进行一系列离心机测试以研究饱和砂中横向负载条件下改进的桩的响应。桩土相互作用的特征是使用有限元分析。使用数值测试进行敏感性研究和参数研究。在海上应用中,改进的桩可以提供比开放式桩基更大的横向电阻。这种改进与桩直径成比例。四孔限制板比较大直径桩的单孔板更有效。旋转轴位于嵌入深度的80%,确定接地压力的分布。提出了一种理论方法来计算新型含有含型限制板的最终侧向容量。

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  • 来源
    《Oceanographic Literature Review》 |2021年第9期|2092-2092|共1页
  • 作者

    J. Li; Y. Zhang; X. Wang; Z. Sun;

  • 作者单位

    School of Civil and Transportation Engineering Hebei University of Technology Tianjin 300401 China;

    School of Civil and Transportation Engineering Hebei University of Technology Tianjin 300401 China;

    School of Civil and Transportation Engineering Hebei University of Technology Tianjin 300401 China;

    School of Civil and Transportation Engineering Hebei University of Technology Tianjin 300401 China;

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  • 正文语种 eng
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