海上风电粉质黏土中缩径单桩承载特性研究  

RESEARCH ON BEARING CHARACTERISTICS OF REDUCED DIAMETER MONOPILE IN SILTY CLAY FOR OFFSHORE WIND POWER

作　　者：赵昊 邱旭 李会 闫姝[1] 马文冠 Zhao Hao;Qiu Xu;Li Hui;Yan Shu;Ma Wenguan(China Huaneng Clean Energy Technology Research Institute Co.,Ltd.,Beijing 102209,China)

机构地区：[1]中国华能集团清洁能源技术研究院有限公司,北京102209

出　　处：《太阳能学报》2024年第12期284-290,共7页Acta Energiae Solaris Sinica

基　　金：海上风电场基础冲刷防护治理理论、措施及工程应用研究(HNKJ23-H18)。

摘　　要：利用有限元软件进行缩径单桩承载特性研究,数值结果表明,相比于常规单桩,缩径单桩拥有更大的竖向承载力;从等效塑性应变云图可知,缩径单桩的竖向承载模式由常规单桩的桩端承载变为桩端和缩径段共同承载模式;缩径段高度和直径变化对承载力有显著影响;通过对竖向承载力各段占比大小计算,可知缩径段的外侧承担主要竖向荷载,约65%。The bearing characteristics of reduced diameter monopile of offshore wind power was researched in this paper using the finite element software.The numerical results show that the reduced diameter monopile has greater vertical bearing capacity than that of the conventional monopile.It can be seen from the equivalent plastic strain map that the vertical load mode of the reduced diameter monopile changes to the joint load mode of the end and the reducing section,compared to the end load mode of the conventional monopile.The height and diameter of the reducing section have a significant influence on the bearing capacity.Through the calculation of the proportion of each section of vertical bearing capacity,the outside of the reduced section bears the main vertical load,about 65%.

关 键 词：海上风电场 海上风力发电机 海上风电结构 缩径单桩 单桩基础 承载特性 

分 类 号：TU432[建筑科学—岩土工程]