非饱和花岗岩残积土的弹塑性本构模型与验证

吉林大学学报(理学版) ›› 2023, Vol. 61 ›› Issue (6): 1457-1462.

非饱和花岗岩残积土的弹塑性本构模型与验证

张强^1,2, 刘一奥^3,4

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

收稿日期:2023-04-12 出版日期:2023-11-26 发布日期:2023-11-26
通讯作者: 刘一奥 E-mail:307331205@qq.com

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

ZHANG Qiang^1,2, LIU Yi’ao^3,4

1. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266000, Shandong Province, China;
2. Shangdong Lunan Geological Engineering Survery Institute, Jining 272100, Shandong Province, China;
3. College of Construction Engineering, Jilin University, Changchun 130026, China; 4. China Development Bank Jilin Branch, Changchun 130022, China

Received:2023-04-12 Online:2023-11-26 Published:2023-11-26

摘要/Abstract

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.

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

Abstract: 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.

Key words: granite residual soil, unsaturated soil, physical-mechanical property, modified Cambridge model

中图分类号:

O482.1

张强, 刘一奥. 非饱和花岗岩残积土的弹塑性本构模型与验证[J]. 吉林大学学报(理学版), 2023, 61(6): 1457-1462.

ZHANG Qiang, LIU Yi’ao. Elastic-Plastic Constitutive Model and Validation of Unsaturated Granite Residual Soils[J]. Journal of Jilin University Science Edition, 2023, 61(6): 1457-1462.

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