摘要
开展系列筒型基础离心机试验,通过在不同高度对筒型基础施加水平荷载,研究地基的变形发展过程和筒型基础的抗力变化规律,进而结合Abaqus有限元分析,揭示筒型基础在水平力和力矩耦合作用下,转动中心位置的变化规律及运动模式由平动过渡到转动的过程,提出通过转动中心位置变化确定筒型基础地基变形发展过程的方法,并解释筒型基础在水平力与力矩耦合作用下出现承载力包络线向外扩张的原因。
In this study,a series of centrifugal model tests on bucket foundation were conducted by applying horizontal loads at different heights to investigate the development of ground deformation and the variation of resistance in bucket foundations.By the use of Abaqus finite element method,the changing pattern of the rotation center position and the transition from translation to rotation under the coupling effect of horizontal forces and moments in bucket foundations were revealed.A method was proposed to determine the development process of ground deformation in bucket foundations by analyzing the variation of the rotation center position.Furthermore,the reason for the expansion of the bearing capacity envelope under the coupling effect of horizontal forces and moments in bucket foundations was explained.
作者
刘智敏
陈广思
王晓磊
李成凤
刘润
Liu Zhimin;Chen Guangsi;Wang Xiaolei;Li Chengfeng;Liu Run(State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation,Tianjin University,Tianjin 300072,China;School of Civil Engineering,Hebei University of Engineering,Handan 056038,China)
出处
《太阳能学报》
北大核心
2025年第3期697-704,共8页
Acta Energiae Solaris Sinica
基金
国家重点研发计划(2022YFB4200702)。
关键词
海上风电
复合变形
离心模型试验
筒型基础
转动中心
offshore wind power
deformation
centrifugal model test
bucket foundation
rotation center
