Finite-difference model for two-dimensional transport of degradable organic contaminants in a buffer layer-cutoff wall-aquifer system accounting for the consolidation behavior
文献类型：期刊论文
| 作者 | Jiang, Wenhao1,2,3; Ge, Shangqi4; Feng, Chen1,2,3; Li, Jiangshan1,2,3 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 162页码:12 |
| 关键词 | Degradable organic contaminants Cutoff wall system Two-dimensional transport Consolidation behavior Finite-difference model |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2023.105674 |
| 英文摘要 | Consolidation changes the geotechnical properties of a cutoff wall with depth. However, current research in transport theory fails to account for this factor. In this paper, a model for two-dimensional transport of degradable organic contaminants in a buffer layer-cutoff wall-aquifer system is developed, which takes the impacts of consolidation behavior into account for the first time. The finite-difference approach is employed to address this model, and its reasonableness is exhibited by the comparative analyses of three-different scenarios. Following this, a case-study on the barrier performance shows that accounting for the cutoff wall's consolidation behavior prolongs the defined breakthrough time tb compared to when it is neglected. When a change in the cutoff wall consolidation parameter increases the horizontal and vertical effective stresses, its anti-fouling effectiveness is enhanced. Moreover, reducing the depth of the maximum inflow boundary concentration and increasing the concentration distribution range result in a decrease in tb. When the degradation half-life & LE; 400 years, the degradation effect should be considered to provide an accurate assessment of the cutoff wall's longevity. For the "enclosure" cutoff walls, the appropriate thicknesses of the buffer layer and the cutoff wall can be determined based on the site environment and the construction cost. |
| 资助项目 | National Key Research and Development Program of China[2019YFC1804003] ; Special Fund for Basic Research on Science Instruments of the National Science Foundation of China[51827814] |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001047098800001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39209]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Jiangshan |
| 作者单位 | 1.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Zhejiang Univ, Coll Civil Engn & Architecture, Hangzhou 310058, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Wenhao,Ge, Shangqi,Feng, Chen,et al. Finite-difference model for two-dimensional transport of degradable organic contaminants in a buffer layer-cutoff wall-aquifer system accounting for the consolidation behavior[J]. COMPUTERS AND GEOTECHNICS,2023,162:12. |
| APA | Jiang, Wenhao,Ge, Shangqi,Feng, Chen,&Li, Jiangshan.(2023).Finite-difference model for two-dimensional transport of degradable organic contaminants in a buffer layer-cutoff wall-aquifer system accounting for the consolidation behavior.COMPUTERS AND GEOTECHNICS,162,12. |
| MLA | Jiang, Wenhao,et al."Finite-difference model for two-dimensional transport of degradable organic contaminants in a buffer layer-cutoff wall-aquifer system accounting for the consolidation behavior".COMPUTERS AND GEOTECHNICS 162(2023):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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