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  

Comparation of Determination Methods of Horizontal Ultimate Bearing Capacity of Offshore Wind Power Monopile Foundation in Sandy Soil

作　　者：吴桐 马宏旺[1] 陈昱霖 WU Tong;MA Hongwang;CHEN Yulin(Department of Architecture and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学土木工程系,上海200240

出　　处：《中国海洋平台》2024年第2期34-39,81,共7页China offshore Platform

基　　金：国家重点研发计划“超大型海上风电机组整机、部件、基础一体化设计研究”(编号:2019YFB1503700)。

摘　　要：总结已有的3类单桩基础的水平极限承载力确定方法,分别为极限平衡法、p-y曲线法和定性方法,并结合试验实例研究采用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,最大差距可达38.84%。鉴于无统一的方法,以及采用不同方法得到的结果差异性较大,单桩基础的水平极限承载力确定还需要进一步研究。The existing three types of determination methods of offshore wind power monopile foundation are summarized,which are limit equilibrium method,p-y curve method and qualitative method,and the difference in the horizontal ultimate bearing capacity calculated by different methods is studied 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 horizontal ultimate bearing capacity of the monopile foundation.

关 键 词：海上风电 单桩基础 桩-土作用 水平极限承载力 P-Y曲线 

分 类 号：P752[天文地球—海洋科学] TM315[电气工程—电机] TU473[建筑科学—结构工程]