Law of Nuclide Migration in Clayey Rocks considering Diffusion and Fluid Transport
文献类型：期刊论文
| 作者 | Yu, Hongdan1; Lu, Chen1,2; Chen, Weizhong1; Wang, Luyu3; Li, Honghui4; Lu, Haifeng5 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2022-06-24 |
| 卷号 | 10期号:-页码:- |
| 关键词 | clayey rock pore-fissure radionuclide diffusion seepage |
| 英文摘要 | A core concern in the research on deep geological disposal of high-level radioactive waste is the migration of radionuclides in geological bodies. Most studies on radionuclide migration consider the role of only the rock fissures without incorporating the influence of the rock matrix. In this paper, the rock mass for geological disposal of high-level radioactive waste is regarded as a fissure-pore medium. Considering the influences of radionuclide diffusion and fluid transport on radionuclide migration in the process of disposal, the governing equation of radionuclide migration and evolution in the pore-fissure medium is established. The numerical scheme of the governing equation is given based on the mixed finite volume method (FVM), using our program solution module written in C++. On this basis, the numerical test model with fissures was developed, which analyzed the radionuclide migration law in clayey rocks under various fissure and rock matrix diffusion coefficients and hydraulic conductivities. The simulation results are compared with finite element method results, revealing the superiority of the mixed FVM method in solving problems of radionuclide migration in discontinuous geological bodies containing hiatuses, mutations, and fissures. The study provides a theoretical basis for evaluating the safety, feasibility, and suitability of geological disposal repositories for high-level radioactive waste in terms of radionuclide migration. |
| 学科主题 | Geology |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000827291000001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35507]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China 2.University of Chinese Academy of Sciences, Beijing, China 3.GeoRessources Laboratory, UMR 7359, CNRS, Vandœuvre-lès-Nancy, France, 4.Management Department High Level Radwaste Disposal Safety Division, China Institute for Radiation Protection, Taiyuan, China 5.School of Civil and Architectural Engineering, Wuhan University, Wuhan, China |
| 推荐引用方式 GB/T 7714 | Yu, Hongdan,Lu, Chen,Chen, Weizhong,et al. Law of Nuclide Migration in Clayey Rocks considering Diffusion and Fluid Transport[J]. FRONTIERS IN EARTH SCIENCE,2022,10(-):-. |
| APA | Yu, Hongdan,Lu, Chen,Chen, Weizhong,Wang, Luyu,Li, Honghui,&Lu, Haifeng.(2022).Law of Nuclide Migration in Clayey Rocks considering Diffusion and Fluid Transport.FRONTIERS IN EARTH SCIENCE,10(-),-. |
| MLA | Yu, Hongdan,et al."Law of Nuclide Migration in Clayey Rocks considering Diffusion and Fluid Transport".FRONTIERS IN EARTH SCIENCE 10.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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