%0 Journal Article
%T UPPER BOUND ANALYSIS OF EARTH PRESSURE ON RETAIN WALL USING RIGID FINITE ELEMENTS<br>土压力问题上限有限元分析
%A 姜朋明
%A 吕云霞
%A 梅国雄
%J 力学与实践
%D 2008
%I 
%X Rigid finite elements are used to construct a kinematically admissible velocity field. The objective function for determination of earth pressure contains some unknowns, subject to a set of linear constraints derived from the energy-work balance equation, the Mohr-Coulomb failure (yield) criterion, the associated flow rule and a number of boundary conditions. The objective function with constraints leads to a linear programming problem, which can be solved by an interior point algorithm. A classical earth pressure calculation case shows that the presented method is of valid.
%K limit analysis
%K upper bound
%K earth pressure
%K linear programming
%K rigid finite element<br>极限分析
%K 上限定理
%K 土压力
%K 线性规划
%K 刚体有限元
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=0BF5C9FB031A532ED0A6D99DC4F6181A&aid=745054C9762040BEE8AFA3258A0D82C0&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=94C357A881DFC066&sid=1371F55DA51B6E64&eid=1AE5323881A5ECDC&journal_id=1000-0879&journal_name=力学与实践&referenced_num=0&reference_num=8