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
赵昊 1邱旭 1李会 1闫姝 1马文冠1
作者信息
- 1. 中国华能集团清洁能源技术研究院有限公司,北京 102209
- 折叠
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%.
Abstract
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Key words
offshore wind farms/offshore wind turbines/offshore wind power structures/reduced diameter monopile/monopile/bearing characteristic引用本文复制引用
出版年
2024
NETL
NSTL
万方数据