海上风电大直径单桩基础随机冰荷载计算方法研究  

The Calculation Method of Random Ice Load for Large-Diameter Monopile Foundations of Offshore Wind Power

作　　者：张明华 李佳禧 刘玉玲 牛圣良 王凤芹 ZHANG Minghua;LI Jiaxi;LIU Yuling;NIU Shengliang;WANG Fengqin(Shandong Energy New Energy(Dongying)Co.,Ltd.,Jinan 250014,China;Power China Huadong Engineering Corporation Limited,Hangzhou 311100,China;Zhejiang East China Engineering Consulting Co.,Ltd.,Hangzhou 311100,China;State Key Laboratory of Water Resources Engineering and Management,Wuhan University,Wuhan 430072,China)

机构地区：[1]山能新能源(东营)有限公司,山东济南250014 [2]中国电建集团华东勘测设计研究院有限公司,浙江杭州311100 [3]浙江华东工程咨询有限公司,浙江杭州311100 [4]水资源工程与调度全国重点实验室(武汉大学),湖北武汉430072

出　　处：《昆明理工大学学报(自然科学版)》2025年第2期98-105,159,共9页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(51379159)。

摘　　要：高纬度海域内海上风电单桩基础长期遭受随机冰荷载作用,严重影响着单桩基础的安全与稳定.根据随机冰荷载模型,采用谐波叠加法(WAWS)开展海上风电大直径单桩基础的冰荷载计算,以渤中海域内某海上风电场中直径为7.5 m的单桩基础为研究对象,使用MATLAB编写对应程序,进行了指定环境下单桩基础所受随机冰荷载的时程模拟,并将模拟功率谱与目标谱进行对比来验证谐波叠加法的可行性.研究结果表明,该计算方法和程序能够有效且方便地实现空间域中多点随机冰荷载的时程模拟,适用于海上风电大直径单桩基础的随机冰荷载计算.Monopile foundations for offshore wind power in high-latitude maritime areas are subject to the long-term effects of random ice loads,which severely affect the safety and stability of the monopiles.The weighted amplitude wave superposition method(WAWS)is used to calculate random ice loads on large-diameter monopile foundations for offshore wind power based on the random ice load model.The study focuses on a 7.5 m diameter monopile foundation in an offshore wind farm located in the central Bohai Sea.A MATLAB program is used to simulate the time-dependent random ice load on the foundation under specified environmental conditions.The simulated power spectrum is then compared to the target spectrum to verify the feasibility of the WAWS method.The research results indicate that the WAWS method and program can effectively and conveniently simulate the time history of multi-point random ice loads in the spatial domain,making it suitable for the calculation of random ice loads on large-diameter monopile foundations for offshore wind power.

关 键 词：海上风电 单桩基础 随机冰荷载 谐波叠加法 

分 类 号：P752[天文地球—海洋科学] TM614[电气工程—电力系统及自动化] TU473.1[建筑科学—结构工程]