A Unified Deterioration Model for Elastic Modulus of Rocks with Coupling Influence of Plastic Shear Strain and Confining Stress
文献类型：期刊论文
| 作者 | Cui, Lan2,3; Sheng, Qian2,3; Zheng, Junjie4; Xie, Mingxing1; Liu, Yang4 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 55期号:12页码:7409 |
| ISSN号 | 0723-2632 |
| 关键词 | Elastic modulus Plastic strain Confining stress Deterioration model Nonlinear fitting regression method |
| 英文摘要 | A reasonable prediction of the elastic modulus of rock and rock mass can provide sound basis for the design in tunnels and underground caverns. It is observed from the laboratory results that the elastic modulus not only depends on the confining pressure but also indicates certain sensitivity to the failure degree during the loading-fracturing process. This paper deduces a unified expression for the elastic modulus with the coupling effects of the plastic strain and confining stress, and fits the soft, moderate, hard rocks with different quality. In this paper, a method to determine the elastic modulus from the laboratory results is proposed. Through the method, the variation of the elastic modulus versus the plastic strain and confining stress for the soft, moderate, hard rocks is analysed. A unified deterioration model for the elastic modulus is developed by the nonlinear fitting regression method. This deterioration model can be employed in the analytical and numerical analysis of the tunnels and underground caverns, which enables to present a more realistic mechanical behaviour of rock mass. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | SPRINGER WIEN |
| WOS记录号 | WOS:000844908000001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35441]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.College of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, 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 4.Institute of Geotechnical and Underground Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
| 推荐引用方式 GB/T 7714 | Cui, Lan,Sheng, Qian,Zheng, Junjie,et al. A Unified Deterioration Model for Elastic Modulus of Rocks with Coupling Influence of Plastic Shear Strain and Confining Stress[J]. ROCK MECHANICS AND ROCK ENGINEERING,2022,55(12):7409. |
| APA | Cui, Lan,Sheng, Qian,Zheng, Junjie,Xie, Mingxing,&Liu, Yang.(2022).A Unified Deterioration Model for Elastic Modulus of Rocks with Coupling Influence of Plastic Shear Strain and Confining Stress.ROCK MECHANICS AND ROCK ENGINEERING,55(12),7409. |
| MLA | Cui, Lan,et al."A Unified Deterioration Model for Elastic Modulus of Rocks with Coupling Influence of Plastic Shear Strain and Confining Stress".ROCK MECHANICS AND ROCK ENGINEERING 55.12(2022):7409. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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