DEM investigations on the effects of confining pressure and particle breakage on the mechanical behavior of tailings
文献类型：期刊论文
| 作者 | Li, Xueting4,5; Zhang, Chao3,5; Chen, Qinglin2; Ma, Changkun5; Pan, Zhenkai1 |
| 刊名 | COMPUTATIONAL PARTICLE MECHANICS
 |
| 出版日期 | 2025-04-29 |
| 页码 | 16 |
| 关键词 | DEM simulation Confining pressure Particle breakage Mechanical behavior Tailings |
| ISSN号 | 2196-4378 |
| DOI | 10.1007/s40571-025-00933-0 |
| 英文摘要 | The effects of confining pressure and particle breakage on the mechanical behavior of tailings were investigated using the discrete-element method to simulate conventional triaxial tests. The particle breakage was simulated using the octahedral shear stress breakage criterion and 14 Apollonian fragments replacement method. The macroscopic behavior of tailings revealed that the peak shear stress ratio is sensitive to confining pressure and the critical shear stress ratio is less sensitive to particle breakage. Confining pressure and particle breakage affect shear expansion, leading to changes in shear damage patterns. The quantitative study shows that particle breakage is the main factor influencing the nonlinear variation of the tailing strength. However, the influence proportion of particle breakage is gradually decreasing with the increase in the confining pressure. Microscopic analysis reveals a positive correlation between the overall anisotropy and the shear stress ratio, with the anisotropy of the normal contact force distribution contributing the most. The variation of the overall anisotropy is caused by the variation of the contact state, in which the sliding contact state is the main influencing factor. |
| 资助项目 | the National Key Research & Development Program of China[2023YFC3012200] ; National Key Research & Development Program of China[52104085] ; National Key Research & Development Program of China[52304155] ; National Natural Science Foundation of China[2022-ZD002] ; Key Project of China Coal Research Group |
| WOS研究方向 | Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001478400800001 |
| 出版者 | SPRINGER INT PUBL AG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35798]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Chao |
| 作者单位 | 1.Wuhan Univ Technol, Sch Safety Sci & Emergency Management, Wuhan 430070, Hubei, Peoples R China 2.Jiangxi Univ Sci & Technol, Sch Resources & Environm Engn, Ganzhou 341000, Jiangxi, Peoples R China 3.Minist Emergency Management, Key Lab Mine Slope Safety Risk Warning & Disaster, Wuhan 430071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xueting,Zhang, Chao,Chen, Qinglin,et al. DEM investigations on the effects of confining pressure and particle breakage on the mechanical behavior of tailings[J]. COMPUTATIONAL PARTICLE MECHANICS,2025:16. |
| APA | Li, Xueting,Zhang, Chao,Chen, Qinglin,Ma, Changkun,&Pan, Zhenkai.(2025).DEM investigations on the effects of confining pressure and particle breakage on the mechanical behavior of tailings.COMPUTATIONAL PARTICLE MECHANICS,16. |
| MLA | Li, Xueting,et al."DEM investigations on the effects of confining pressure and particle breakage on the mechanical behavior of tailings".COMPUTATIONAL PARTICLE MECHANICS (2025):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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