铁道科学与工程学报2017，Vol.14Issue(2)：233-240,8.
条形基础地基极限承载力的改进径向移动算法研究
The research of ultimate bearing capacity for strip foundation with improved radial moving optimization
摘要
Abstract
On the basis of limit analysis method and the division of the foundation into rigid-plastic triangular blocks and considering the effect of the groundwater level and matric suction for unsaturated soil, the solve equation was established using the same virtual power inside and outside. Then the ultimate bearing capacity of strip foundation was equivalent to a functional extreme value problem with unknow boundary. After improved the data structure, the radial movement optimization was used to search the foundation slip line and calculate the corresponding ultimate bearing capacity. On this basis, the relationship among the ultimate bearing capacity of the foundation and parameters of the foundation soil, matric suction, groundwater level could be further studied. The results show that the improved radial movement optimization can quickly and accurately search the slip line and solve the ultimate bearing capacity of the foundation. The foundation parameters show different influences with the ultimate bearing capacity.关键词
地基极限承载力/非饱和土/基质吸力/条形基础/径向移动算法Key words
ultimate bearing capacity of foundation/unsaturated soils/matric suction/strip foundation/radial movement optimization分类
建筑与水利引用本文复制引用
金亮星,潘卓夫,冯琦璇..条形基础地基极限承载力的改进径向移动算法研究[J].铁道科学与工程学报,2017,14(2):233-240,8.基金项目
国家自然科学基金资助项目(51378514) （51378514）
