%0 Journal Article
%T INFLUENCES OF NONLINEAR FAILURE CRITERION ON STABILITY ANALYSIS OF VERTICAL CUT USING NONLINEAR SQP ALGORITHM<br>非线性破坏准则对竖直边坡稳定性分析的影响
%A Yang Xiaoli
%A Li Liang
%A Liu Baochen
%A <br>杨小礼
%A 李亮
%A 刘宝琛
%J 岩石力学与工程学报
%D 2004
%I 
%X A new technique is described for computing rigorous upper bound on stability factors of vertical cut under the condition of plane strain. A perfectly plastic soil model is assumed. The failure of soil is governed by nonlinear yield criterion. Sequential quadratic programming(SQP) is used in conjunction with the limit analysis of classical plasticity theory. A new kinematically admissible velocity field is constructed. When using linear failure criterion that exceeds the actual nonlinear failure criterion,the stability factor formulation of the upper bound theorem leads to a classical nonlinear programming problem,where the objective function,which is to be minimized,corresponds to the dissipated power. The upper bound optimization problem may be solved efficiently by applying a nonlinear SQP algorithm,and stability factors are obtained,which agree well with previous achievements.
%K rock and soil mechanics
%K slope stability
%K upper bound theorem
%K nonlinear failure criterion
%K sequential quadratic programming<br>岩土力学
%K 边坡稳定性
%K 上限定理
%K 序列二次规划
%K 非线性破坏准则
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=4082FB7B86C297B4&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=E158A972A605785F&sid=106103EB0EA31435&eid=6341CCF6B158C5F9&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=10&reference_num=9