Estimation of equivalent permeability tensor for fractured porous rock masses using a coupled RPIM-FEM method
文献类型：期刊论文
| 作者 | Zhang, Wei; Cong, Peitong; Bian, Kang; Yuan, Wei-Hai; Jia, Xichun |
| 刊名 | ENGINEERING COMPUTATIONS
 |
| 出版日期 | 2019 |
| 卷号 | 36期号:3页码:807-829 |
| 关键词 | Porous Fracture Rock mass Permeability tensor Finite element method (FEM) Radial point interpolation method (RPIM) |
| ISSN号 | 0264-4401 |
| DOI | 10.1108/EC-06-2018-0276 |
| 英文摘要 | Purpose Understanding the fluid flow through rock masses, which commonly consist of rock matrix and fractures, is a fundamental issue in many application areas of rock engineering. As the equivalent porous medium approach is the dominant approach for engineering applications, it is of great significance to estimate the equivalent permeability tensor of rock masses. This study aims to develop a novel numerical approach to estimate the equivalent permeability tensor for fractured porous rock masses. Design/methodology/approach The radial point interpolation method (RPIM) and finite element method (FEM) are coupled to simulate the seepage flow in fractured porous rock masses. The rock matrix is modeled by the RPIM, and the fractures are modeled explicitly by the FEM. A procedure for numerical experiments is then designed to determinate the equivalent permeability tensor directly on the basis of Darcy's law. Findings The coupled RPIM-FEM method is a reliable numerical method to analyze the seepage flow in fractured porous rock masses, which can consider simultaneously the influences of fractures and rock matrix. As the meshes of rock matrix and fracture network are generated separately without considering the topology relationship between them, the mesh generation process can be greatly facilitated. Using the proposed procedure for numerical experiments, which is designed directly on the basis of Darcy's law, the representative elementary volume and equivalent permeability tensor of fractured porous rock masses can be identified conveniently. Originality/value A novel numerical approach to estimate the equivalent permeability tensor for fractured porous rock masses is proposed. In the approach, the RPIM and FEM are coupled to simulate the seepage flow in fractured porous rock masses, and then a numerical experiment procedure directly based on Darcy's law is introduced to estimate the equivalent permeability tensor. |
| WOS研究方向 | Computer Science ; Engineering ; Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000469397400004 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/15077]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China; 2.South China Agr Univ, Coll Water Conservancy & Civil Engn, Guangzhou, Guangdong, Peoples R China; 3.Hohai Univ, Coll Mech & Mat, Nanjing, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Wei,Cong, Peitong,Bian, Kang,et al. Estimation of equivalent permeability tensor for fractured porous rock masses using a coupled RPIM-FEM method[J]. ENGINEERING COMPUTATIONS,2019,36(3):807-829. |
| APA | Zhang, Wei,Cong, Peitong,Bian, Kang,Yuan, Wei-Hai,&Jia, Xichun.(2019).Estimation of equivalent permeability tensor for fractured porous rock masses using a coupled RPIM-FEM method.ENGINEERING COMPUTATIONS,36(3),807-829. |
| MLA | Zhang, Wei,et al."Estimation of equivalent permeability tensor for fractured porous rock masses using a coupled RPIM-FEM method".ENGINEERING COMPUTATIONS 36.3(2019):807-829. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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