砂性土中海上风电单桩基础水平极限承载力确定方法对比分析
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上海交通大学 土木工程系

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国家重点研发计划“超大型海上风电机组整机、部件、基础一体话设计研究”(编号:2019YFB1503700)第一作者:吴桐(1997-),男,硕士研究生,研究方向为海上风电单桩基础承载力通讯作者:马宏旺(1972-),男,副教授,研究方向为海上风电结构 ,马宏旺1,陈昱霖1


Comparative analysis of the determination method of horizontal ultimate bearing capacity of offshore wind power foundation in sandy soil
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1.Department of Architecture and Civil Engineering,Shanghai Jiao Tong University;2.China;3.Shang Hai Jiao Tong University

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    摘要:

    单桩基础凭借其结构简单、便于安装等特点,广泛应用于海上风电的建设中。然而,关于如何确定单桩基础的水平极限承载力,目前并没有统一的方法。本文总结了已有的三类确定方法,分别为:极限平衡法、p-y曲线法和定性方法,并结合试验案例研究了不同方法计算得到的水平极限承载力之间的差异性。结果表明:不同方法求得的结果差异性较大,最大差距能达到38.84%。因此,鉴于无统一的方法,以及不同方法得到的结果差异性较大,单桩基础的极限水平承载力确定还需进一步研究。

    Abstract:

    The monopile foundation is widely used in the construction of offshore wind power due to its simple structure and easy installation. However, there is no unified method about how to determine the horizontal ultimate bearing capacity of a monopile foundation. Therefore, this paper summarizes the existing three types of determination methods, which are limit equilibrium method, p-y curve method and qualitative method, and studies the difference between the horizontal ultimate bearing capacity calculated by different methods, combined with the test cases. The results show that the results obtained by different methods are quite different, and the maximum gap can reach 38.84%. Since there is no uniform method and the results obtained by different methods vary greatly, further research is needed to determine the ultimate horizontal bearing capacity of the monopile foundation.

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  • 收稿日期:2022-12-20
  • 最后修改日期:2023-01-13
  • 录用日期:2023-02-01
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