Anisotropic elastoplastic constitutive model based on microstructure tensor and its engineering application

被引：0
|
作者：
Yin D. [1 ,2 ,3 ]
Meng Q.-X. [1 ,2 ]
Xu J.-R. [4 ]
Shi A.-C. [4 ]
Wu G.-Y. [4 ]
Xu W.-Y. [1 ,2 ]
机构：
[1] Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing
[2] Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University, Nanjing
[3] CCCC Guangzhou Dredging Co., Ltd., Guangzhou
[4] PowerChina, Huadong Engineering Corporation, Hangzhou
来源：
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2020年 / 42卷 / 09期
关键词：
Anisotropy; Baihetan Hydropower Station; Columnar joint; Elastoplastic constitutive; Microstructure tensor;
D O I：
10.11779/CJGE202009020
中图分类号：
学科分类号：
摘要：
An anisotropic elastoplastic constitutive relation based on the microstructure tensor theory is proposed. The microstructure tensor is introduced to describe the spatial distribution function of the strength parameters of transversely isotropic materials. The user defined model is developed in FLAC3D, and the triaxial numerical simulation tests on columnar jointed specimen with a joint angle of 75° are carried out. The simulated results are in good agreement with the experimental ones, indicating the feasibility of the model. The developed constitutive model is also applied to the numerical simulation calculation of the excavation of the foundation of Baihetan high dam. The results show that the deformation characteristics of the anisotropic model are closer to the actual monitoring results than thoes of the isotropic model. The results can provide theoretical support for the construction of Baihetan Hydropower Station. © 2020, Editorial Office of Chinese Journal of Geotechnical Engineering. All right reserved.
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页码：1751 / 1758
页数：7
相关论文
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