Effect of intermittent joint distribution on the mechanical and acoustic behavior of rock masses
文献类型：期刊论文
| 作者 | Fu, Shuaiyang1,2; Li, Haibo1,2 ; Liu, Liwang1,2; Wu, Di1,2; Wang, Ben1,2
|
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 16期号:4页码:1231-1244 |
| 关键词 | Stochastic joints Intrinsic cohesive zone model Uniaxial compressive strength (UCS) Wave propagation Fabric tensor |
| ISSN号 | 1674-7755 |
| DOI | 10.1016/j.jrmge.2023.07.013 |
| 英文摘要 | The mechanical characteristics and acoustic behavior of rock masses are greatly in fluenced by stochastic joints. In this study, numerical models of rock masses incorporating intermittent joints with different numbers and dip angles were produced using the finite element method (FEM) with the intrinsic cohesive zone model (ICZM). Then, the uniaxial compressive and wave propagation simulations were performed. The results indicate that the joint number and dip angle can affect the mechanical and acoustic properties of the models. The uniaxial compressive strength (UCS) and wave velocity of rock masses decrease monotonically as the joint number increases. However, the wave velocity grows monotonically as the joint dip angle increases. When the joint dip angle is 45 O - 60 O , the UCS of the rock mass is lower than that of other dip angles. The wave velocity parallel to the joints is greater than that perpendicular to the joints. When the dip angle of joints remains unchanged, the UCS and wave velocity are positively related. When the joint dip angle increases, the variation amplitude of the UCS regarding the wave velocity increases. To reveal the effect of the joint distribution on the velocity, a theoretical model was also proposed. According to the theoretical wave velocity, the change in wave velocity of models with various joint numbers and dip angles was consistent with the simulation results. Furthermore, a theoretical indicator (i.e. fabric tensor) was adopted to analyze the variation of the wave velocity and UCS. (c) 2024 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY -NC -ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). |
| 资助项目 | Na-tional Key R&D Program of China[2020YFA0711802] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001271911200001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42040]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Haibo |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Shuaiyang,Li, Haibo,Liu, Liwang,et al. Effect of intermittent joint distribution on the mechanical and acoustic behavior of rock masses[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2024,16(4):1231-1244. |
| APA | Fu, Shuaiyang,Li, Haibo,Liu, Liwang,Wu, Di,&Wang, Ben.(2024).Effect of intermittent joint distribution on the mechanical and acoustic behavior of rock masses.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,16(4),1231-1244. |
| MLA | Fu, Shuaiyang,et al."Effect of intermittent joint distribution on the mechanical and acoustic behavior of rock masses".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 16.4(2024):1231-1244. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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