摘要
基于风机基础结构的动力学响应模型,考虑桩土相互作用对海上风机桩基础结构力学特性的影响,进行了主要桩土参数对基础结构动力响应的敏感度分析研究。结果表明,桩土参数对结构动力响应有显著影响,不同参数对于结构动力响应的敏感度不同,不同土壤的同一参数对于结构的动力响应敏感度亦不同。并给出了全粘土、全砂土、半粘土半砂土3种地基模型中参数敏感度大小排序,对海上风机基础结构的设计具有重要指导意义。
Taking consideration of the influence of pile-soil interaction on mechanical property of offshore wind turbine foundation, analysis on parameter sensitivity of dynamic behavior contributed by environmental and structural parameters were performed. The result shows that the soil and structural parameters contribute a lot to dynamic behavior of structures, and the sensitivity caused by different parameters or the same parameter by different kinds of soil are differ from others. A sequence of parameter sensitivity was presented respectively in three types of soil conditions such as 100% sand layer, 50% clay layer （top） and 50% sand layer （bottom）, as well as 100% clay layer.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2014年第4期73-79,共7页
Journal of Wuhan University of Technology
基金
国家能源应用技术研究及工程示范项目(NY20110404-1)
关键词
海上风机基础
桩土参数
动力响应特性
敏感度
offshore wind turbine foundation
soil and structural parameter
dynamic response
sensitivity
