Influence of rock percentage on strength and permeability of tailing-waste rock mixtures
文献类型：期刊论文
| 作者 | Zhang, Chao2; Ma, Changkun2; Chen, Qinglin3; Liu, Haiming4; Wu, Shangwei5; Pan, Zhenkai2; Zhang, Lei1 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2020-07-18 |
| 页码 | 13 |
| 关键词 | Tailing-waste rock mixture Co-disposal Mixture ratio Tailings Permeability |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-020-01911-x |
| 英文摘要 | The strength and permeability of tailing-waste rock mixtures directly affect deposits' stability for an alternative co-disposal technique. In the mixed co-disposal method, the void of the waste rock is filled with tailings, while the waste rock forms the particle skeleton. This method does not only improve deposits stability but also potentially reduces acid pollution. In this study, the rock percentage influence on the shear strength and permeability of tailing-waste rock mixtures was investigated by carrying out large triaxial tests and permeability tests. The shear strength, enhanced strength mechanism, and mixture permeability were analyzed. The results indicate that the shear strength and internal friction angle of the tailing-waste rock mixtures gently increased until the rock percentage reached 30% and then rapidly increased with the further increase of the rock percentage. The permeability coefficient of the mixtures slowly increased until the rock percentage reached 50% and then rapidly increased with the further increase of the rock percentage. The tailings washed out of the waste rock skeleton when the permeability was large. In this paper, 50% of waste rock is recommended for building mixture deposits. |
| 资助项目 | National Key R&D Program of China[2017YFC0804601] ; National Natural Science Foundation of China[51741410] ; National Natural Science Foundation of China[51874268] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000549828400003 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24568]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Chen, Qinglin |
| 作者单位 | 1.Hubei Univ Technol, Coll Civil Engn & Architecture, Wuhan 430068, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Chongqing Univ, Sch Resources & Safety Engn, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 4.Kunming Univ Sci & Technol, Fac Civil Engn & Mech, Kunming 650224, Yunnan, Peoples R China 5.Chongqing Univ Sci & Technol, Coll Safety Engn, Chongqing 401331, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chao,Ma, Changkun,Chen, Qinglin,et al. Influence of rock percentage on strength and permeability of tailing-waste rock mixtures[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020:13. |
| APA | Zhang, Chao.,Ma, Changkun.,Chen, Qinglin.,Liu, Haiming.,Wu, Shangwei.,...&Zhang, Lei.(2020).Influence of rock percentage on strength and permeability of tailing-waste rock mixtures.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,13. |
| MLA | Zhang, Chao,et al."Influence of rock percentage on strength and permeability of tailing-waste rock mixtures".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2020):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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