On the effect of void ratio and particle breakage on saturated hydraulic conductivity of tailing materials
文献类型：期刊论文
| 作者 | Ma, Changkun2,3; Zhang, Chao3; Chen, Qinglin1; Pan, Zhenkai3; Mal, Lei3 |
| 刊名 | GEOMECHANICS AND ENGINEERING
 |
| 出版日期 | 2021-04-25 |
| 卷号 | 25期号:2页码:159-170 |
| 关键词 | tailings effective void ratio particle breakage hydraulic conductivity |
| ISSN号 | 2005-307X |
| DOI | 10.12989/gae.2021.25.2.159 |
| 英文摘要 | Particle size of tailings in different areas of dams varies due to sedimentation and separation. Saturated hydraulic conductivity of high-stacked talings materials are seriously affected by void ratio and particle breakage. Conjoined consolidation permeability tests were carried out using a self-developed high-stress permeability and consolidation apparatus. The hydraulic conductivity decreases nonlinearly with the increase of consolidation pressure. The seepage pattern of coarse-particle tailings is channel flow, and the seepage pattern of fine-particle tailings is scattered flow. The change rate of hydraulic conductivity of tailings with different particle sizes under high consolidation pressure tends to be identical. A hydraulic conductivity hysteresis is found in coarse-particle tailings. The hydraulic conductivity hysteresis is more obvious when the water head is lower. A new hydraulic conductivity-void ratio equation was derived by introducing the concept of effective void ratio and breakage index. The equation integrated the hydraulic conductivity equation with different particle sizes over a wide range of consolidation pressures. |
| 资助项目 | National Key Research and Development Program of China[2017YFC0804601] ; National Natural Science Foundation of China[51741410] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000644707800008 |
| 出版者 | TECHNO-PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27149]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Chao |
| 作者单位 | 1.Jiangxi Univ Sci & Technol, Ganzhou, Jiangxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Changkun,Zhang, Chao,Chen, Qinglin,et al. On the effect of void ratio and particle breakage on saturated hydraulic conductivity of tailing materials[J]. GEOMECHANICS AND ENGINEERING,2021,25(2):159-170. |
| APA | Ma, Changkun,Zhang, Chao,Chen, Qinglin,Pan, Zhenkai,&Mal, Lei.(2021).On the effect of void ratio and particle breakage on saturated hydraulic conductivity of tailing materials.GEOMECHANICS AND ENGINEERING,25(2),159-170. |
| MLA | Ma, Changkun,et al."On the effect of void ratio and particle breakage on saturated hydraulic conductivity of tailing materials".GEOMECHANICS AND ENGINEERING 25.2(2021):159-170. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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