岩土力学2012，Vol.33Issue(5)：1433-1437,1444,6.
分层地基中抗拔桩破裂面的确定方法与极限抗拔承载力计算方法研究
Study of computation methods of ultimate uplift capacity and determining position of failure surface of uplift piles in layered soil
摘要
Abstract
The horizontal slice method is used to study the relation among the uplift capacity, the failure surface and soil parameters with Mohr-Coulomb failure criterion. According to the limit equilibrium approach, the uplift capacity is calculated by dividing soil around the pile into slices with regarding the potential failure surface as a group of several sectional planes. Then the multivariate function used to calculate uplift capacity is established and optimized by the sequential quadratic programming. Through the numerical calculation and comparison with the previous research, the results show that the method is reasonable and effective, and can be used to determine the failure surface shape and the magnitude of the uplift capacity of uplift piles.关键词
极限抗拔力/破裂面/水平条分法/多块体Key words
ultimate uplift capacity/ failure surface/ horizontal slice method/ multiple blocks分类
建筑与水利引用本文复制引用
何思明,张晓曦,王东坡..分层地基中抗拔桩破裂面的确定方法与极限抗拔承载力计算方法研究[J].岩土力学,2012,33(5):1433-1437,1444,6.基金项目
国家自然科学基金重点项目资助项(No.40830742) （No.40830742）
科技部科技支撑项目(No.2011BAK12B03) （No.2011BAK12B03）
国家自然科学基金资助项目(No.40872181). （No.40872181）
