新型海上风电基础结构空间三维数值模拟研究  

Spatial 3D Numerical Simulation Research on a New Foundation Structure of Offshore Wind Power

作　　者：王婷婷[1] 苏莉源 卢生军[1] WANG Tingting;SU Liyuan;LU Shengjun(CCCC-FHDI Engineering Co.,Ltd.,Guangzhou 510230,China)

机构地区：[1]中交第四航务工程勘察设计院有限公司,广州510230

出　　处：《南方能源建设》2018年第3期1-7,共7页Southern Energy Construction

基　　金：中交第四航务工程勘察设计院研发项目"海上风电基础关键技术研究"(2014RD03)

摘　　要：[目的]为迎对海上风电快速发展的趋势,亟需开发新型海上风电基础结构形式以满足大水深和深厚软基的设计需求。[方法]结合某海上风电工程基础设计为算例,以PLAXIS 3D大型有限元软件为平台,对一种新型大直径钢圆筒组合导管架风机基础结构进行空间三维弹塑性数值模型分析研究,采用合理可行的本构类型以及简化形式模拟风机基础的整体稳定性,考虑钢圆筒与土体之间的共同作用,分析风机基础的内力与位移;再用ANSYS软件建实体模型计算极限荷载工况下各构件的应力。[结果]研究结果表明:新型组合式风机基础内力和位移均可控,在理论上可适用于软基和深水区海上风电场建设。[结论]分析结果对今后新型海上风电基础结构的开发与研究具有一定的参考意义。[Introduction]With the rapid development of offshore wind power,it is necessary to develop new foundation structure of offshore wind power to meet the design requirements of deep water and soft soil foundation. [Method] In this paper,an offshore wind power project design was taken as an example to do research on a new wind turbine foundation structure which was of large-diameter steel cylinder combined with jacket. Using finite element softw are PLAXIS 3 D,overall stability calculations of the structure were carried out by adopting reasonable and feasible constitutive model and simplified form. Interaction between steel cylinder and soil was considered. Internal forces and displacements of wind turbine foundation were analyzed. Besides,solid model was established by using ANSYS and stress of components under extreme load combinations were calculated. [Result]The results indicate that the internal forces and displacements of the new combined type of wind turbine foundation are controllable. The new structure is applicative to the construction of offshore wind power on soft foundation and deep water area theoretically. [Conclusion] The research has certain reference significance to the development of the new type of offshore wind power foundation structure in the future.

关 键 词：海上风电基础 空间三维数值模拟 大直径钢圆筒 软土地基 

分 类 号：TM614[电气工程—电力系统及自动化] TU476[建筑科学—结构工程]