Quantitative description of stress-dependent post-peak brittle characteristics and numerical implementation
文献类型：期刊论文
| 作者 | Wang, Zhaofeng2,3; Pan, Peng-Zhi2,3; Yang, Shijie1 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 81期号:10页码:- |
| 关键词 | Post-peak behaviour Stress dependence Hard rock engineering Quantitative description Numerical simulation Engineering significance |
| ISSN号 | 1435-9529 |
| 英文摘要 | In this study, based on true-triaxial compression tests, five typical post-peak brittle characteristics are summarized, and the stress dependence is observed. Next, the quantitative description of this stress-dependent post-peak brittle characteristic is theoretically discussed. Then, combining the cluster analysis and the artificial recognition results on the brittleness, a new quantitative universal classification method based on stress-dependent brittleness is proposed, which is suitable for numerous hard rock types, with fewer parameters involved. Through implemented code and application to the actual field case, it is found that this stress-dependent post-peak characteristics model causes the higher energy concentration to occur at a deeper location comparing to traditional stress-independent models. The significance of the hard rock engineering is discussed, and the results indicate that it is necessary to consider the true-triaxial stress state of the rock mass and the influence of intermediate and minor principal stresses to the post-peak behaviour cannot be neglected. Finally, it is suggested to adopt the stress-dependent post-peak characteristic model in the design process of hard rock engineering, particularly for cases under high stress or severe engineering hazards such as rockbursts, which require more accurate calculation and prediction with lower error allowance. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000861465200002 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35023]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Power China Kunming Engineering Corporation Limited, Kunming 650000, Yunnan, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 3.University of Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Wang, Zhaofeng,Pan, Peng-Zhi,Yang, Shijie. Quantitative description of stress-dependent post-peak brittle characteristics and numerical implementation[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2022,81(10):-. |
| APA | Wang, Zhaofeng,Pan, Peng-Zhi,&Yang, Shijie.(2022).Quantitative description of stress-dependent post-peak brittle characteristics and numerical implementation.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,81(10),-. |
| MLA | Wang, Zhaofeng,et al."Quantitative description of stress-dependent post-peak brittle characteristics and numerical implementation".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 81.10(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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