文献类型：会议论文

英文题名：Three modified mohr-coulomb yield criteria based on K0 consolidation line

作者：Li, Shun-qun[1,2]; Feng, Hui-Qiang[3]; Chen, Zhi-xiang[2]; Xia, Jin-hong[4]; Gui, Chao[4]

第一作者：Li, Shun-qun

通讯作者：Li, Shun-qun

机构：[1] State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China; [2] School of Civil Engineering, Tianjin Chengjian University, Tianjin, China; [3] Pingyang Xian Gong Wu Ju, PingYang, China; [4] School of Civil Engineering and Architecture, Xinxiang University, Xinxiang, China

第一机构：State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China

会议论文集：Proceedings - IACMAG 2017, 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics

会议日期：October 19, 2017 - October 23, 2017

会议地点：Wuhan, China

语种：英文

外文关键词：Geomechanics - Soils

摘要：Most soil empirical models, with isoclines and π plane employed to describe soil’s yield characters, are established from tests on remolded samples in laboratories. Based on the K0 consolidation line, three modified Mohr-Coulomb yield criteria are presented, respectively called the translation mode, the constriction mode and the rotation mode. Considering p is constant in true triaxial test for structure study, the yield locus of the first and the second modified Mohr-Coulomb criteria are established still on the π plane. Whereas the rotation mode is based for K0 consolidation state and its yield locus located on the χ plane, which perpendicular to the K0 line. The first two modes could be utilized to evaluate the soil structure property directly from the traditional true triaxial test. For the last mode, the anisotropy and the structure of undisturbed soil could be studied by the untraditional true triaxial test that satisfy the equation σ1+K0σ2+K0σ3=c, or the traditional true triaxial test data mapping from the π plane to the χ plane. ? 2017 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics