土木与环境工程学报（中英文）2025，Vol.47Issue(5)：177-185,9.DOI:10.11835/j.issn.2096-6717.2023.089
风电机组岩石锚杆式加固基础受力性能现场监测研究
Field monitoring on mechanical performance of rock bolt reinforced foundation of wind turbine
摘要
Abstract
The loading condition on the wind turbine during operation is complex.Therefore,based on a wind turbine foundation reinforcement project in Weihai,a systematic monitoring method is proposed to evaluate the performance improvement effect of the reinforced foundation in combination with the field environment.From the construction stage to the operation stage,the tower strain,welding stud strain,and anchor cable axial force of the reinforced foundation are collected to study the stress response of the wind turbine reinforced foundation under different working conditions,conduct correlation analysis,and to explore the performance improvement effect and load transfer mechanism after foundation reinforcement.The results show that the stress response of each component in the reinforcement area has trend similarity and amplitude difference,and the stress improvement effect is obvious with a large safety margin.The reinforcement method changes the stress boundary of the structure by using outsourcing concrete and welding studs,increases the restraint stiffness of the bottom tower,redistributes the upper transferred load,shares the transferred shear force,and ensures the common deformation of the tower and concrete.The systematic monitoring and evaluation method based on this reinforcement scheme can effectively and timely assess the stress state of each component of the reinforcement system and ensure the safety of the subsequent wind turbine operation.The reinforcement scheme improves the stress state of the foundation,rock bolt and flange,and the overall mechanical performance of the foundation is guaranteed.关键词
风电机组/焊接焊钉/基础加固/现场监测/受力响应Key words
wind turbines/welding stud/foundation reinforcement/field monitoring/mechanical response分类
建筑与水利引用本文复制引用
魏焕卫,雷树立,宋志鑫,陈朝伟,惠俊梅,宋鹏,郑晓..风电机组岩石锚杆式加固基础受力性能现场监测研究[J].土木与环境工程学报（中英文）,2025,47(5):177-185,9.基金项目
山东省自然科学基金(ZR2019MEE021)Natural Science Foundation of Shandong Province(No.ZR2019MEE021) （ZR2019MEE021）
