Micromechanical behavior of jointed rock masses under uniaxial compression loading: a numerical study based on the discrete element method
文献类型：期刊论文
| 作者 | Xu, Wenhui; Ren, Weizhong; Liu, Yibiao; Liu, Chenchen; Cai, Simin |
| 刊名 | EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
 |
| 出版日期 | 2022-11-12 |
| 关键词 | Discrete element method fabric tensor jointed rock mass failure process anisotropy |
| ISSN号 | 1964-8189 |
| 英文摘要 | The discrete element method is used to study the deformation process and failure mechanism of rock masses under uniaxial compression when the initial joint frequency increases. In this study, a systematic analysis is carried out to investigate failure mechanisms in rock masses with special emphasis on macroscopic deformation processes and the micromechanical origin. The influences of joints on strength, deformability, stress-strain relationship, and failure mode are studied at the macroscopic level. The tensile and shear crack distribution, fragment characteristics, and energy dissipation are also analyzed to advance the understanding of the deformation process and failure mechanism of jointed rock masses. The microevolution of fabric and forces anisotropy during loading and contact force distribution provide insights into the effect of increasing initial joint frequency on the macroscopic deformation behavior of rocks. The results reveal that with the increasing initial joint frequency, the specimen exhibits brittle-ductile characteristics, and the failure mode changes from splitting to sliding along the joint surfaces. They also show how the deceleration in the growth of fabric and contact forces anisotropy develops and confirm that the increase in initial joints and corresponding microstructural changes can suppress the development of anisotropy, thereby significantly reducing the strength of rock samples. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000891480200001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34800]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Xu, Wenhui,Ren, Weizhong,Liu, Yibiao,et al. Micromechanical behavior of jointed rock masses under uniaxial compression loading: a numerical study based on the discrete element method[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2022. |
| APA | Xu, Wenhui,Ren, Weizhong,Liu, Yibiao,Liu, Chenchen,&Cai, Simin.(2022).Micromechanical behavior of jointed rock masses under uniaxial compression loading: a numerical study based on the discrete element method.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING. |
| MLA | Xu, Wenhui,et al."Micromechanical behavior of jointed rock masses under uniaxial compression loading: a numerical study based on the discrete element method".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING (2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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