海上风电钢管复合嵌岩桩设计要素研究  

Key Design Factors of Steel Pipe Composite Rock-socketed Pile in Offshore Wind Power Projects

作　　者：石玉琪 乐治济 SHI Yuqi;LE Zhiji(Shanghai Investigation,Design&Research Institute Co.,Ltd.,Shanghai 200335,China)

机构地区：[1]上海勘测设计研究院有限公司,上海200335

出　　处：《水电与新能源》2023年第1期30-35,共6页Hydropower and New Energy

摘　　要：基于福建兴化湾某海上风电场钢管复合桩水平推力实验数据和设计边界,对桩基模型进行数值模拟,在现场水平推力试验获得的H-Y、桩身测斜曲线与有限元结果拟合较好的情况下,采用该套模型对复合桩的钢管桩占比、径深比、嵌岩比、GSI、桩身刚度等要素进行敛散性和敏感性研究,成果可作为海上风电钢管复合嵌岩桩的设计参考。Based on the horizontal thrust test result and the design boundary of the steel pipe composite pile in an offshore wind farm in Xinghua Bay,Fujian Province,numerical simulation of the pile foundation is carried out.The finite element simulation results are in good agreement with the H-Y and pile inclinometer curves obtained from the field horizontal thrust test.Then,the simulation model is adopted to study the convergence and sensitivity of several key factors such as the pipe pile proportion,diameter-depth ratio,rock socketed ratio,geological strength index(GSI),and pile stiffness.The results could be useful reference for the design of steel pipe composite rock-socketed pile in offshore wind power projects.

关 键 词：海上风电 钢管复合桩 水平承载性能 边界效应 敏感性 

分 类 号：TU473[建筑科学—结构工程]