Three-dimensional lower bound finite element limit analysis of an anisotropic undrained strength criterion using second-order cone programming

作     者：Ukritchon, Boonchai Keawsawasvong, Suraparb 

作者机构：Chulalongkorn Univ Fac Engn Dept Civil Engn Ctr Excellence Geotech & Geoenvironm Engn Bangkok 10330 Thailand 

出 版 物：《COMPUTERS AND GEOTECHNICS》 (计算机与土工学)

年 卷 期：2019年第106卷

页      面：327-344页

核心收录：

学科分类：0709[理学-地质学] 081803[工学-地质工程] 07[理学] 08[工学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Lower bound Limit analysis Second-order cone programming Anisotropic strength Finite element limit analysis Stability 

摘      要：This paper describes a formulation of second-order cone programming for three-dimensional lower bound finite element limit analysis considering a cross-anisotropic undrained strength criterion. A three-dimensional generalized yield criterion accounting for the cross-anisotropic undrained strength of clay is proposed and requires four input shear strengths in triaxial compression and extension, direct simple shear, and pressuremeter tests. The proposed formulation is verified through the predictions of various compressions of anisotropic soil blocks while the importance of undrained strength anisotropy is demonstrated by analyses of undrained bearing capacity of strip, circular and square footings on anisotropic clays.