Coupled model for electro-osmosis consolidation and ion transport considering chemical osmosis in saturated clay soils
文献类型：期刊论文
| 作者 | Ge, Shangqi1,2,3; Jiang, Wenhao4; Wang, Ji-Peng2; Feng, Guohui3; Zheng, Lingwei3; Xie, Xinyu3 |
| 刊名 | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
 |
| 出版日期 | 2024-07-03 |
| 页码 | 20 |
| 关键词 | chemical osmosis clay soil consolidation coupled model electro-osmosis ion transport |
| ISSN号 | 0363-9061 |
| DOI | 10.1002/nag.3802 |
| 英文摘要 | The electro-osmosis approach efficiently facilitates the rapid dewatering of soil with high water content and contributes to reducing contaminant levels within the clay soil. However, the changes of chemical field caused by ion transport in the clay soil during electro-osmosis process will also influence the clay soil consolidation effect. Existing theories predominantly tend to disregard this crucial physical process and its resultant effects, thereby restraining a comprehensive analysis of electro-osmosis consolidation (EOC) behavior under intricate chemical conditions. This study introduces a concise model of EOC and ion transport considering chemical osmosis. The model considers the nonlinear variation of clay soil parameters such as compressibility, permeability, and effective diffusion coefficients, along with the interaction between EOC and ion transport. Meanwhile, the correctness of the model is verified from different aspects such as theoretical derivation and model comparison. Based on the proposed model, the impacts of the variation in electrical field intensity and chemical concentration on the coupled behaviors between EOC and ion transport are systematically investigated, with and without incorporating nonlinear consolidation characteristics. The results show that diffusion and electro-migration exhibit a more pronounced effect on ion transport during EOC. Simultaneously, with the increase of ion concentration in clay soil pore solution, the effects of chemical osmosis become increasingly apparent, thereby enhancing clay soil settlement. |
| 资助项目 | National Key Research and Development Program of China[2021YFE0194300] ; National Natural Science Foundation of China[52378372] ; National Natural Science Foundation of China[52378374] ; Natural Science Foundation of Zhejiang Province[LZ20E080001] ; Natural Science Foundation of Zhejiang Province[LQ19E080009] ; Postdoctoral Innovative Talents Support Program of Shandong Province[SDBX202302007] ; Zhejiang Province Construction Research Project[2022K081] ; Zhejiang Water Science and Technology Project[RB2117] |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001260853500001 |
| 出版者 | WILEY |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41859]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wang, Ji-Peng |
| 作者单位 | 1.Univ Leeds, Geomodelling & Artificial Intelligence Ctr, Sch Civil Engn, Leeds, England 2.Shandong Univ, Sch Civil Engn, Jinan 250012, Peoples R China 3.Zhejiang Univ, Res Ctr Coastal & Urban Geotech Engn, Hangzhou, Peoples R China 4.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 | Ge, Shangqi,Jiang, Wenhao,Wang, Ji-Peng,et al. Coupled model for electro-osmosis consolidation and ion transport considering chemical osmosis in saturated clay soils[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2024:20. |
| APA | Ge, Shangqi,Jiang, Wenhao,Wang, Ji-Peng,Feng, Guohui,Zheng, Lingwei,&Xie, Xinyu.(2024).Coupled model for electro-osmosis consolidation and ion transport considering chemical osmosis in saturated clay soils.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,20. |
| MLA | Ge, Shangqi,et al."Coupled model for electro-osmosis consolidation and ion transport considering chemical osmosis in saturated clay soils".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS (2024):20. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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