| 黏土地基近海风机桶形基础累积变形研究 |
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| 引用本文： | 邢占清,高季章,张金接,符平.黏土地基近海风机桶形基础累积变形研究[J].中国水利水电科学研究院学报,2014(2):149-154. |
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| 作者姓名： | 邢占清 高季章 张金接 符平 |
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| 作者单位： | 中国水利水电科学研究院北京中水科水电科技开发有限公司，北京100038;中国水利水电科学研究院北京中水科水电科技开发有限公司，北京100038;中国水利水电科学研究院北京中水科水电科技开发有限公司，北京100038;中国水利水电科学研究院北京中水科水电科技开发有限公司，北京100038 |
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| 基金项目： | 中国水利水电科学研究院科研专项（监1423） |
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| 摘 要： | 基于黏土循环累积变形的半经验公式,将土体循环累积变形等效为蠕变,形成了近海风机桶形基础累积变形的有限元计算方法。在长期实测响水近海海域风、浪数据的基础上,以已建2 MW风机参数进行分析,得到了不同循环作用次数下桶形基础中心沉降量、不均匀沉降量和倾斜率。计算结果表明,风机运行期内桶形基础变形可满足风机运行要求。
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| 关 键 词： | 近海风机 桶形基础 累积变形 循环荷载 |
Accumulative deformation of offshore wind turbine bucket foundation in clay |
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| XING Zhan-qing,GAO Ji-zhang,ZHANG Jin-jie and FU Ping.Accumulative deformation of offshore wind turbine bucket foundation in clay[J].Journal of China Institute of Water Resources and Hydropower Research,2014(2):149-154. |
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| Authors: | XING Zhan-qing GAO Ji-zhang ZHANG Jin-jie and FU Ping |
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| Affiliation: | (China Institute of Water Resource and Hydropower Research, Beijing IWHR technology Co., Ltd., Beijing 100038, China) |
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| Abstract: | Based on the semi-empirical relationship of clay accumulative deformation, taking cyclic cumula-tive deformation as creep, a finite element method for calculating accumulative deformation of offshore wind turbine bucket foundation in clay is developed. The long-term observation data of Xiangshui offshore wind and wave was Analysed. Taking 2 MW demonstration wind turbine as an example,an analysis model is es-tablished. Under different cycle number, the deformation of bucket foundation including central settlement, uneven settlement and gradient of slope, is studied by this method. The result shows that the deformation of bucket foundation still meet the requirements of wind turbine operation after 50 years. |
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| Keywords: | offshore wind turbine bucket foundation accumulative deformation repeated load |
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