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海上风电钢管桩水平承载力计算方法研究

Calculation Method Study for the Horizontal Bearing Capacity of Offshore Wind Turbine Steel-Pile

  • 摘要:
      目的  p-y曲线法在计算钢管桩水平位移时的桩身受力状态有明显优势。
      方法  开发了一套新的p-y曲线自动提取程序,根据提取的剪力用三次样条曲线进行拟合,然后一次求导得到p
      结果  研究表明:该方法提高计算精度的同时,降低了使用者的经验要求,方便工程推广使用。
      结论  针对桂山海上风电场项目的大直径单桩基础现场试桩结果进行三维有限元分析,验证了该提取方法在桩土相互作用分析中的可靠性。

     

    Abstract:
      Introduction  The p-y curve method has obvious advantages in calculating stress state of piles under horizontal displacement.
      Method  This paper developed a new automatic p-y curve extraction program, which can obtain reaction force p through fitting and derivation of shear force.
      Result  The results show that while improving the accuracy of the calculation, this program reduces the user′s experience requirement and it is worth promoting in project.
      Conclusion  A three-dimensional finite element analysis of steelpile foundation in Guishan offshore wind farm project is carried out, the results verify the reliability of the extraction program in soil-pile interaction analysis.

     

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