华中科技大学学报（自然科学版）2013，Vol.41Issue(7)：27-31,41,6.
环形沉井刃脚斜侧面基础地基极限承载力分析
Analysis of ultimate bearing capacity of ring cutting curbs on open caisson foundation bevels
摘要
Abstract
The direction of soil slip under the cutting curb was analyzed.On the basis of Mohr-Coulomb principle,the more iterative convergence finite difference method was applied to discrete the α,βtwo family characteristics equation deduced from the slip line theory.A numerical model for the bearing capacity of cutting curb bevel was built.According to the cutting curb bevel boundary conditions,the ground ultimate bearing capacity was analyzed through Matlab software program and the soil pressure distribution characteristics and change law of cutting curb bevel foundation were obtained.At the same time,the ultimate bearing capacity was studied while different influencing factors,including c,φ,y,loading,structure size,and the edge foundation roughness were adapted.The results show that the calculational method of ultimate bearing capacity about catting curb bevel foundation which deduced from the slip line theory was of grat significance with ragard to the open caisson structural design and similar projects.关键词
沉井/环形刃脚/数值计算模型/Matlab软件/极限承载力/影响因素Key words
open caisson/ ring cutting curb/ numerical calculation model/ Matlab software/ ultimate bearing capacity/ influence factors分类
建筑与水利引用本文复制引用
徐伟,陈志强,徐赞云..环形沉井刃脚斜侧面基础地基极限承载力分析[J].华中科技大学学报（自然科学版）,2013,41(7):27-31,41,6.基金项目
上海市科学技术委员会计划资助项目(0820121102). （0820121102）
