Non-linear mechanical characteristics of tailings in large-scale high tailings dams
文献类型：期刊论文
| 作者 | Chen, Qinglin; Li, Zugui; Zhang, Chao; Dai, Zeyu; Wang, Xiaojun; Zhang, Xuepeng |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2023-03-20 |
| 卷号 | 11 |
| 关键词 | tailings high pressure non-linear mechanics particle crushing breakage index |
| 英文摘要 | The non-linear mechanical characteristics of tailings under high pressure are the research foundation of large-scale high tailings dams. Considering the high stress caused by high tailing ponds, consolidated drained triaxial shear tests were carried out. The deterioration mechanism of non-linear mechanics was revealed by particle crushing. The test results show that sample density has a great influence on volumetric strain under low pressure. However, volumetric strain is not related to sample density under high pressure. The shear strength of the tailings is significantly non-linear. The internal friction angle under low pressure can still be obtained by the traditional linear Mohr-Coulomb criterion and the internal friction angle under high pressure by the power function of the Mohr criterion. The particle crushing of tailings occurs not only at high pressure but also at low pressure. The value of the breakage index increases with sample density. The non-linear mechanics of shear strength are affected by particle breakage. The breakage index value increases linearly with increasing shear strength, indicating that the high density of the deep part of the tailings dam is prone to particle crushing, which affects the stability of the large-scale high dam. |
| 学科主题 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000961846500001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34789]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Jiangxi University of Science & Technology; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Chen, Qinglin,Li, Zugui,Zhang, Chao,et al. Non-linear mechanical characteristics of tailings in large-scale high tailings dams[J]. FRONTIERS IN EARTH SCIENCE,2023,11. |
| APA | Chen, Qinglin,Li, Zugui,Zhang, Chao,Dai, Zeyu,Wang, Xiaojun,&Zhang, Xuepeng.(2023).Non-linear mechanical characteristics of tailings in large-scale high tailings dams.FRONTIERS IN EARTH SCIENCE,11. |
| MLA | Chen, Qinglin,et al."Non-linear mechanical characteristics of tailings in large-scale high tailings dams".FRONTIERS IN EARTH SCIENCE 11(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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