湖南大学学报（自然科学版）2016，Vol.43Issue(11)：86-94,9.
临坡矩形浅基础地基极限承载力的上限分析∗
Upper Bound Solution for Ultimate Bearing Capacity of the Shallow Rectangular Footings Adj acent to Slope
摘要
Abstract
In order to make an intensive study of the failure mechanism of rectangular footings adj acent to slope,a three-dimensional and bilateral failure mode was established,which fully considered the influ-ence of the shear strength of inside soil in the foundation and the double asymmetrical features.Moreover, a simplified construction method of the rigid-motion blocks collapse mechanism was proposed,which could not only effectively reflect the three-dimensional end effect but also avoid complex coordinate and surface integral calculation,and it is more convenient for practical engineering.Based on the failure mode,the up-per limit analysis theory was then introduced,and a new analysis approach of ultimate bearing capacity of rectangular footing adj acent to slope was put forward.Meanwhile,the solving of the bearing capacity was realized by using the SQP optimization theory.Finally,the feasibility and rationality of the research ap-proach proposed is showed through the comparison analysis with the current research as well as the ABQUS finite element results.关键词
极限承载力/临坡地基/矩形基础/上限分析Key words
ultimate bearing capacity/ground foundation adj acent to slope/rectangular footings/upper limit analysis分类
交通工程引用本文复制引用
曹文贵,袁青松,胡卫东..临坡矩形浅基础地基极限承载力的上限分析∗[J].湖南大学学报（自然科学版）,2016,43(11):86-94,9.基金项目
国家自然科学基金资助项目(51378198),National Natural Science Foundation of China(51378198) （51378198）
高等学校博士学科点专项科研基金资助项目(20130161110017) （20130161110017）
