非饱和花岗岩残积土的弹塑性本构模型与验证  

Elastic-Plastic Constitutive Model and Validation of Unsaturated Granite Residual Soils

作　　者：张强[1,2] 刘一奥[3,4] ZHANG Qiang;LIU Yi’ao(College of Environmental Science and Engineering,Ocean University of China,Qingdao 266000,Shandong Province,China;Shangdong Lunan Geological Engineering Survery Institute,Jining 272100,Shandong Province,China;College of Construction Engineering,Jilin University,Changchun 130026,China;China Development Bank Jilin Branch,Changchun 130022,China)

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266000 [2]山东省鲁南地质工程勘察院,山东济宁272100 [3]吉林大学建设工程学院,长春130026 [4]国家开发银行吉林省分行,长春130022

出　　处：《吉林大学学报（理学版）》2023年第6期1457-1462,共6页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金面上项目(批准号:41972267)。

摘　　要：基于修正的剑桥模型,通过调整屈服面建立弹塑性模型描述非饱和花岗岩残积土的物理力学行为,推导修正剑桥模型的基本增量格式,编制ABAQUS接口程序实现非饱和花岗岩残积土的应力与变形分析.将基于GDS(global digital system)三轴仪测得的实验数据与模型的模拟结果进行比较.结果表明,模拟结果与实验结果一致.Based on the modified Cambridge model,an elasto-plastic model was established to describe the physical-mechanical behavior of unsaturated granite residual soils by adjusting the yield surface,and the basic incremental format of the modified Cambridge model was derived.The interface program of ABAQUS was developed to realize the stress and deformation analysis of unsaturated granite residual soil.Compared the simulation results with test data of unsaturated granite residual soils measured by GDS(global digital system)triaxial apparatus.The results show that the simulation results are consistent with the experimental results.

关 键 词：花岗岩残积土 非饱和土 物理力学性质 修正剑桥模型 

分 类 号：O482.1[理学—固体物理]