海上风电机高桩基础关键参数试验研究

针对东海大桥近海风电场钢管桩高桩基础的相关工程参数开展了试验研究。通过水平静载荷现场试验测得了海上钢管直桩及斜桩的水平承载力，并采用自平衡测试法测得了桩基的竖向承载力。对波流力作用下连接及未连接平台的钢管桩进行了测试，获得了加速度时程曲线以及钢管桩固有频率。试验结果分析显示，正斜桩的水平承载性能优于直桩和反斜桩；钢管桩未连接平台时，在波流作用下的位移明显大于连接平台后；钢管桩的实测固有频率在1.05～1.3 Hz之间，斜桩的固有频率略高于直桩。试验结果已直接应用于该工程高桩基础设计中。

Experimental study of key parameters of high piled foundation for offshore wind turbine

In order to investigate the key parameters of high-piled foundation for Donghai Bridge offshore wind turbine,a series of field tests were conducted.The horizontal bearing capacity of offshore steel-pipe vertical pile and batter pile was achieved by the horizontal static load field test;and the vertical bearing capacity of pile was tested by the Osterberg method.The wave force on the steel-pipe pile which was connected and unconnected to the test platform was tested;and the acceleration versus time data and ...