水利水电技术2011，Vol.42Issue(1)：37-40,4.
按抗剪强度指标计算复合地基极限承载力的近似解
Approximate solution from shearing strength index-based calculation on ultimate bearing capacity of composite foundation
摘要
Abstract
Under the vertical load, a foundation is supposed to be a Prantle' s sliding plane.In accordance with the limit equilibrium method, the approximate solution of the ultimate bearing capacity of a strip composite foundation from the calculations based on the shearing strength indexes of beth the natural soil mass and the strengthened soil mass of the foundation is derived.On the basis of this, the method of the calculation on the ultimate bearing capacity of the foundation composed of the layered ground,rectangular foundation and circular foundation is discussed herein.The calculation result shows that the calculation result from the method of the shearing strength index-based calculation for the ultimate bearing capacity of composite foundation is basically consistent with that from the method specified in the specification concerned, and then the applicability of this method is justified as well.As following the calculation method for the calculation on the ultimate bearing capacity of natural ground, the parameters for this method are easy to be got, and furthermore, it is more convenient for the actual application than that given in the relevant specification.关键词
抗剪强度指标/复合地基/极限承载力/极限平衡法/近似解Key words
shearing strength index/ composite foundation/ ultimate bearing capability/ limit equilibrium method/ approximate solution分类
建筑与水利引用本文复制引用
丁继辉,胡英,袁满..按抗剪强度指标计算复合地基极限承载力的近似解[J].水利水电技术,2011,42(1):37-40,4.基金项目
河北省建设厅项目(2008-110). （2008-110）
