Evaluation of the Hydraulic Conductivity of Geosynthetic Clay Liners
文献类型：期刊论文
| 作者 | Hou, Juan3,4,5; Teng, Yuyang4; Bao, Shifen4; Li, Hao4; Liu, Lei1,2,5 |
| 刊名 | CLAYS AND CLAY MINERALS
 |
| 出版日期 | 2022-02-18 |
| 页码 | 14 |
| 关键词 | Geosynthetic clay liners Hydraulic conductivity Mechanical leachate Theoretical model |
| ISSN号 | 0009-8604 |
| DOI | 10.1007/s42860-021-00167-0 |
| 英文摘要 | The hydraulic conductivity of geosynthetic clay liners (GCLs) is not fully understood and certain gaps in knowledge are still present, such as the effect of coupled mechanical and chemical processes. The current study aimed to develop a simplified mathematical model to predict the hydraulic conductivity of GCLs, particularly regarding the coupled effects of mechanical and chemical processes. Based on Darcy's Law and Poiseuille's Law, the method combines diffuse double layer (DDL) theory and fractal theory. External factors such as confining pressure and the concentration of the permeating solution, and inherent properties such as exchangeable cations, ionic radius, montmorillonite surface fractal dimension, the distance between two montmorillonite layers (m) after swelling at the exchangeable cation i (i denotes the primary exchangeable cations, such as Na+, Ca2+, K+, and Mg2+ in bentonite), density, and coefficient of viscosity of interlayer water between two montmorillonite layers, were considered. The proposed theoretical model gave relatively accurate predictions. A practical estimate of GCL hydraulic conductivity was also derived. The predictions were compared with experimental results and good qualitative agreement was found. From the experimental results, the proposed prediction model has a maximum deviation of similar to 1:10-10:1, and the empirical model has a mean deviation of similar to 1:15-15:1. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[51778353] ; National Natural Science Foundation of China (NSFC)[51978390] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018007] ; China Scholarship Council[CSC 201906895014] ; Youth Innovation Promotion Association CAS[2017376] |
| WOS研究方向 | Chemistry ; Geology ; Mineralogy ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000757796000001 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34535]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Hou, Juan |
| 作者单位 | 1.Hubei Prov Key Lab Contaminated Sludge Sr Soil Sc, Wuhan 430071, Peoples R China 2.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 3.Univ Virginia, Sch Engn, Charlottesville, VA 22904 USA 4.Shanghai Univ, Sch Mech & Engn Sci, Shanghai 200444, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Juan,Teng, Yuyang,Bao, Shifen,et al. Evaluation of the Hydraulic Conductivity of Geosynthetic Clay Liners[J]. CLAYS AND CLAY MINERALS,2022:14. |
| APA | Hou, Juan,Teng, Yuyang,Bao, Shifen,Li, Hao,&Liu, Lei.(2022).Evaluation of the Hydraulic Conductivity of Geosynthetic Clay Liners.CLAYS AND CLAY MINERALS,14. |
| MLA | Hou, Juan,et al."Evaluation of the Hydraulic Conductivity of Geosynthetic Clay Liners".CLAYS AND CLAY MINERALS (2022):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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