Energy evolution and damage deformation behavior of cemented broken coal specimen under triaxial compression condition
文献类型：期刊论文
| 作者 | Liu, Bin2; Zhu, Lei2,3; Liu, Xuewei2; Liu, Quansheng1; Fan, Ying3; Yao, Wenjie2,3; Deng, Wei2,3 |
| 刊名 | ENERGY
 |
| 出版日期 | 2024-11-30 |
| 卷号 | 310页码:15 |
| 关键词 | Cemented broken coal specimen Coal particle content Triaxial compression Energy evolution Deformation characteristics |
| ISSN号 | 0360-5442 |
| DOI | 10.1016/j.energy.2024.133203 |
| 英文摘要 | Coal is a major energy source, and deep coal mining often leads to fractured coal around roadways. Grouting is a common method used to reinforce fractured rock masses, where the slurry encases coal particles, forming a cemented broken coal (CBC) body. The content of coal particles (CP) significantly affects the energy characteristics of CBC specimens. To investigate this, a series of triaxial compression tests and triaxial unloading tests were conducted on CBC specimens with varying CP contents. The results indicate that as CP content increases, both peak strength and cohesion decrease, while the internal friction angle increases in both tests. In the triaxial unloading tests, specimens with higher CP content showed tensile-shear failure. Additionally, energy trends during damage were similar in both tests. In triaxial compression tests, dissipated energy increased with CP content, while in the triaxial unloading test, it initially rose and then fell. During the unloading phase of the triaxial unloading tests, the CBC specimen with 40 % CP content exhibited the most significant change in energy increment and its rate. Analysis of damage and deformation characteristics indicated that damage, deformation, and dilation were effectively restrained in CBC specimens with 40 % CP content during unloading. |
| 资助项目 | National Natural Science Foundation of China[U22A20234] ; National Natural Science Foundation of China[42277170] ; Hubei Province key research and development project[2023BCB121] ; Wuhan innovation supporting projects[2023020201010079] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001321666000001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42659]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Xuewei |
| 作者单位 | 1.Wuhan Univ, Sch Civil Engn, Key Lab Safety Geotech & Struct Engn Hubei Prov, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Hubei Univ Technol, Sch Civil Engn Architecture & Environm, Wuhan 430068, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Bin,Zhu, Lei,Liu, Xuewei,et al. Energy evolution and damage deformation behavior of cemented broken coal specimen under triaxial compression condition[J]. ENERGY,2024,310:15. |
| APA | Liu, Bin.,Zhu, Lei.,Liu, Xuewei.,Liu, Quansheng.,Fan, Ying.,...&Deng, Wei.(2024).Energy evolution and damage deformation behavior of cemented broken coal specimen under triaxial compression condition.ENERGY,310,15. |
| MLA | Liu, Bin,et al."Energy evolution and damage deformation behavior of cemented broken coal specimen under triaxial compression condition".ENERGY 310(2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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