| 海上风机吸力基础的水平受荷研究综述 |
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| 引用本文： | 李大勇,陈庆剑,张雨坤,陈福全.海上风机吸力基础的水平受荷研究综述[J].海洋工程,2020,38(4):137-147. |
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| 作者姓名： | 李大勇 陈庆剑 张雨坤 陈福全 |
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| 作者单位： | 福州大学 土木工程学院, 福建 福州 350108;山东科技大学 山东省土木工程防灾减灾重点实验室, 山东 青岛 266590 |
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| 基金项目： | 国家自然科学基金资助项目（51879044）；山东科技大学科研创新团队资助项目（2015TDJH104） |
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| 摘 要： | 吸力基础具有施工速度快、安装过程中受海况天气影响小且易于回收重复利用等优点,被广泛应用于海洋工程。当吸力基础作为海上风电塔架的基础时,常常承受较大的水平荷载,因此其水平承载力是设计的主控因素。介绍了海上风机基础的设计要求,分析了影响基础水平承载性状的因素,总结了吸力基础受水平单调荷载、水平循环荷载和不同荷载组合三个方面的研究现状。讨论了水平荷载的大小、水平加载的高度(偏心率)、循环荷载的频率、循环荷载的次数、循环荷载的幅值、循环荷载的方向性、竖向荷载对吸力基础水平承载性状的影响,考虑了水平荷载的非共线性,指出了目前研究的不足,明确了吸力基础水平承载性状进一步研究的方向,提出了供工程实践参考的建议。
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| 关 键 词： | 海洋工程 吸力基础 水平受荷 承载能力 破坏机理 海上风电 |
| 收稿时间： | 2019/11/13 0:00:00 |
Review of horizontal loading on suction caisson of offshore wind turbines |
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| LI Dayong,CHEN Qingjian,ZHANG Yukun,CHEN Fuquan.Review of horizontal loading on suction caisson of offshore wind turbines[J].Ocean Engineering,2020,38(4):137-147. |
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| Authors: | LI Dayong CHEN Qingjian ZHANG Yukun CHEN Fuquan |
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| Institution: | College of Civil Engineering, Fuzhou University, Fuzhou 350108, China;Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590, China |
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| Abstract: | The suction caisson is widely used in marine engineering because it has features of fast construction, no weather influence and reusability. The suction caisson, acting as the foundation of offshore wind turbines, is often subjected to large horizontal loads; therefore, its horizontal bearing behavior is a key controlling factor for design. In this paper, the design requirements of the offshore wind turbine foundation are introduced, and the factors affecting the bearing capacity are proposed. On the basis of summarizing the different load forms in the marine environment, studies on horizontal suction load, horizontal cyclic load and different load combination are carried out. This paper discusses the effects of magnitude of horizontal load, loading height (loading eccentricity), cyclic loading frequency, cyclic loading cycles, amplitude of cyclic load, directionality of cyclic load, and vertical load on the lateral bearing capacity. The non-collinearity of horizontal loads should also be considered to determine the bearing capacity. The shortcomings of existing researches are discussed. Finally, some suggestions are put forward to guide the future research and engineering practice. |
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| Keywords: | offshore engineering suction caisson horizontal loading bearing capacity failure mechanism offshore wind power |
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