新型拉森钢板桩筒型基础受力特性研究  

Study on Mechanical Behavior of New Type of Lassen Sheet Pile Bucket Foundation

作　　者：陈康东 王禹 李阔霖 王平宇 CHEN Kangdong;WANG Yu;LI Kuolin;WANG Pingyu(Power China Jilin Electric Power Engineering Company Limited,Changchun 130022,China;Huaneng Jilin Power Generation Limited,Changchun 130000,China)

机构地区：[1]中国电建集团吉林省电力勘测设计院有限公司,长春130022 [2]华能吉林发电有限公司新能源开发公司,长春130000

出　　处：《吉林电力》2024年第4期14-19,共6页Jilin Electric Power

摘　　要：基于大兆瓦风力发电机组的陆上风电行业发展背景,提出了新型陆上风电拉森钢板桩筒型基础结构。以某风电场3.3 MW的风力发电机组为研究对象,通过大型数值模拟分析软件ABAQUS对新型基础结构开展了一系列静动力特性分析。研究结果表明:新型基础结构具有良好的承担外部静力荷载作用的能力,结构受力及变形均能够满足实际工程要求;风力发电机组整体结构的自振频率在满足风机厂家要求的同时,也安全地避开了运行过程中所产生的激励频率;在50年一遇的极端随机风荷载作用下,基础的整体位移及承台筒裙连接部位的动力响应均在合理范围之内。新型拉森钢板桩筒型基础结构能够安全稳定地投产使用。Based on the development background of the onshore wind power industry with large megawatt wind turbines,a new type of Lassen sheet pile bucket foundation for onshore wind turbines is proposed.Taking the 3.3 MW wind turbine of a wind farm as the research object,a series of static and dynamic characteristics of the new infrastructure were analyzed by the large-scale numerical simulation analysis software ABAQUS.The results show that:the new type of foundation structure has a good ability to bear external static load,and the force and deformation of the structure can meet the requirements of practical engineering.The natural vibration frequency of the overall structure of wind turbines not only meets the requirements of the wind turbine manufacturer,but also safely avoids the excitation frequency generated during operation.Under the extreme random wind load with a 50-year return period,the overall displacement of the foundation and the dynamic response of the connection part of the pile cap and bucket skirt are within a reasonable range.The new type of Lassen sheet pile bucket foundation can be put into operation safely and stably.

关 键 词：陆上风电 拉森钢板桩 筒型基础 静力特性 动力响应 

分 类 号：TU473[建筑科学—结构工程]