摘要
利用物理试验和有限元计算方法,针对单柱复合筒型基础在工程应用中的施工效应进行分析,总结单柱复合筒型基础顶承式承载模式,并基于其承载特点提出在浅覆盖岩层提升承载能力的有效方法。研究表明:施工效应的影响在循环荷载作用过程中逐渐减弱;单柱复合筒型基础为顶承式承载模式,采用等效重力模型对基础的极限承载力模拟可较好地反映单柱复合筒型基础的承载特性,且可通过等效重力模型手段对单柱复合筒型基础进行简化计算;压载能够有效提升单柱复合筒型基础在浅覆盖岩层地质中的适用性。
Based on the physical test and finite element calculation method,the construction effect of mono-column composite bucket foundation in engineering application is analyzed,and the top-bearing mode of mono-column composite bucket foundation is summarized.The effective method to improve the bearing capacity of shallow bedrocks is proposed based on its bearing characteristics.The results show that:the influence of construction effects gradually weakens during the cyclic loading process.The bearing capacity of mono-column composite bucket foundation is mainly exerted by the top cover,the simulation of ultimate bearing capacity using equivalent gravity model can better reflect the bearing characteristics of mono-column composite bucket foundation,and the calculation of mono-column composite bucket foundation can be simplified through equivalent gravity model.It can be seen that ballast can effectively improve the applicability of mono-column composite bucket foundation in shallow bedrocks.
作者
校建东
林毅峰
程海锋
王舒扬
齐欣
张浦阳
Xiao Jiandong;Lin Yifeng;Cheng Haifeng;Wang Shuyang;Qi Xin;Zhang Puyang(Shanghai Investigation,Design&Research Institute Co.,Ltd.,Shanghai 200335,China;Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;Sino-Portuguese Centre for New Energy Technologies(Shanghai)Co.,Ltd.,Shanghai 200335,China;State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation,Tianjin University,Tianjin 300072,China)
出处
《太阳能学报》
北大核心
2025年第8期104-113,共10页
Acta Energiae Solaris Sinica
基金
上海勘测设计研究院有限公司《海上风电深水海域大容量机组筒型基础关键技术研究》科研项目资助(2021FD(8)-025)。
关键词
海上风电
承载特性
压载
单柱复合筒型基础
施工效应
offshore wind power
bearing capacity
ballast
mono-column composite bucket foundation
construction effect
作者简介
通信作者:张浦阳(1978-),男,博士、教授,主要从事海上风电方面的研究。zpy_td@163.com。
