摘要
深卧式基础采油平台采用由沉箱及底梁构成的基础,是渤海的一种新型平台。它同传统的导管架式平台相比。具有工程上、经济上明显的优势。本文对垂直及水平荷载作用下,平台基础与土的相互作用进行了三维非线性有限元分析。计算中运用导出的具有显式刚度矩阵的三维梯形单元进行离散,以节约机时。计算结果与配合开展的室内实验结果基本吻合。
Deeply-embedded platform which consists of separated caissons and connected bottom-beams between them, has its engineering, and economical advantages. However the interaction mechanism of this new type of foundation with soil is still in research. In this thesis the deeply-embedded foundation and the soil are analysis by a self-made nonlinear finite element programme—DFESS. Indoor model test is carried out for verification of results of analysis. The results of calculation and those of model test are principally inagreement. They both show the features and interaction principle of the deeply-embedded foundation with soil. This would be benificial to the further development and design of the new platform.
关键词
深卧式
基础
土
采油平台
有限元
deeply-embedded, foundation, soil-foundation interaction, nonlinear finite lemerit analysis.
