东南大学学报（英文版）2025，Vol.41Issue(3)：314-324,11.DOI:10.3969/j.issn.1003-7985.2025.03.007
螺旋叶片对海上风电螺旋桩水平承载力的影响
Influence of helical blades on the horizontal bearing capacity of spiral piles for offshore wind power
摘要
Abstract
Spiral pile foundations,as a promising type of foundation,are of significant importance for the develop-ment of offshore wind energy,particularly as it moves to-ward deeper waters.This study conducted a physical experi-ment on a three-spiral-pile jacket foundation under deep-buried sandy soil conditions.During the experiment,horizontal displacement was applied to the structure to thor-oughly investigate the bearing characteristics of the three-spiral-pile jacket foundation.This study also focused on analyzing the bearing mechanisms of conventional piles compared with spiral piles with different numbers of blades.Three different working conditions were set up and com-pared,and key data,such as the horizontal bearing capac-ity,pile shaft axial force,and spiral blade soil pressure,were measured and analyzed.The results show the distinct impacts of the spiral blades on the compressed and tensioned sides of the foundation.Specifically,on the compressed side,the spiral blades effectively enhance the restraint of the soil on the pile foundation,whereas on the tensioned side,an excessive number of spiral blades can negatively af-fect the structural tensile performance to some extent.This study also emphasizes that the addition of blades to the side of a single pile is the most effective method for increasing the bearing capacity of the foundation.This research aims to provide design insights into improving the bearing capac-ity of the foundation.关键词
海上风电/螺旋桩/螺旋叶片/承载能力Key words
offshore wind power/spiral pile/helical blade/bearing capacity分类
建筑与水利引用本文复制引用
丁红岩,韩天旗,张浦阳,罗建华,乐丛欢..螺旋叶片对海上风电螺旋桩水平承载力的影响[J].东南大学学报（英文版）,2025,41(3):314-324,11.基金项目
The National Natural Science Foundation of China(No.52171274). （No.52171274）
