桶形基础平台三维有限元稳定性分析  

3-D Finite Element Stability Analysis of Platform with Bucket Foundation

作　　者：钱荣[1] 周锡礽[1] 孙克俐[1] 张伟[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《海洋技术》2003年第4期49-53,共5页Ocean Technology

基　　金：国家自然科学基金资助项目(59909005);教育部博士点基金项目(20020056030)

摘　　要：以我国第一座桶形基础采油平台工程实例为原型 ,采用三维有限元计算方法对桶形基础稳定性分析。平台在波浪、风等荷载作用下 ,其稳定性不仅与平台的整体结构有关 ,而且与桶形基础及其周围土体相互作用相关。在计算中 ,利用薄层摩擦单元模拟土与结构间的相互作用 ,取得了很好的效果。3-D FEM is carried out to analyze the stability of the first platform with bucket foundation in China. The stability of platform is not only related to the whole construction but also to the act between the platform and the soil surrounding the construction under the action of wave and wind loads. A better result has been achieved in computation when the thin frictional element is used to simulate the interaction between soil and structure. The result of calculation shows that the platform is rather stable operation under the conditions of design.

关 键 词：桶形基础 三维有限元 DUNCAN-CHANG模型 薄层摩擦单元 

分 类 号：O241.82[理学—计算数学]