东南大学学报（英文版）2025，Vol.41Issue(4)：465-472,8.DOI:10.3969/j.issn.1003-7985.2025.04.008
海上风电桩基础的联合回收技术
Combined recovery technology of pile foundations for offshore wind turbines
摘要
Abstract
In recent years,offshore wind turbines have rap-idly developed,and many pile foundations installed earlier are now approaching decommissioning.Thus,the efficient removal of pile foundations has become a critical issue for the sustainable development of offshore wind energy.To ad-dress this issue,this paper systematically investigates three methods for the recovery of pile foundations using physical model experiments:water injection+lifting,air injection+lifting,and air retention+water injection.The experimental results show that the water injection+lifting method exhibits remarkable advantages in recovering large-diameter and in-clined pile foundations;however,realigning inclined piles during recovery remains challenging,and a risk of pile over-turning exists.The air injection+lifting method proves ef-fective for realigning inclined piles but presents a risk of air expulsion failure,which may affect the continuity and stabil-ity of the recovery process.By contrast,the air retention+water injection method combines the characteristics of water injection and air injection techniques,effectively avoiding air expulsion failure and exhibiting pronounced displacement jumps during pile uplift.These findings provide a valuable reference for future decommissioning practices of offshore wind pile foundations,offer important engineering applica-tion value,and contribute positively to the sustainable devel-opment of the offshore wind industry.关键词
海上风电/桩基础/回收/物理模型试验Key words
offshore wind turbine/pile foundation/recov-ery/physical model experiment分类
建筑与水利引用本文复制引用
丁红岩,田晓轩,张浦阳,信连硕,乐丛欢..海上风电桩基础的联合回收技术[J].东南大学学报（英文版）,2025,41(4):465-472,8.基金项目
The National Natural Science Foundation of China(No.52171274). （No.52171274）
