Evaluation of permeability of soil & rock aggregate using meshless numerical manifold method
文献类型：期刊论文
| 作者 | Lin, Shan3; Zheng, Hong3; Zhang, Zhihong3; Li, Wei1,2 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 151期号:-页码:- |
| ISSN号 | 0266-352X |
| 关键词 | Numerical manifold method Moving least squares Soil & rock aggregate (SRA) Equivalent permeability coefficient |
| 英文摘要 | Soil & Rock Aggregate (SRA) is ubiquitous in nature and an excellent fill material in engineering. The presence of SRA rock blocks in number and size-difference makes it impossible to simulate each rock block separately in engineering computations. A practical way is to regard SRA as an equivalent continuum and to evaluate prop-erties of the equivalent continuum using numerical methods. In this way, it is hopeful to overcome big errors of laboratory tests due to removing big blocks. Randomness of SRA rock blocks in shape and orientation renders clumsy mesh dependent methods such as finite element methods. By using finite elements to form mathematical patches, the numerical manifold method (NMM), called FE-NMM, reduces to some degree mesh dependency, but still involves a huge number of operations in cover-cutting and information-rebuilding while generating physical covers. Specifying node influence domains in the moving least squares (MLS) as mathematical patches, and MLS shape functions as the weight functions of the physical patches, this study develops the procedure MLS-NMM to evaluate SRA permeability, completely avoiding extra labor in FE-NMM. Many complicated deployments of rock blocks in SRA are designed and analyzed, suggesting significant advantages of MLS-NMM over FE-NMM. Meanwhile, some interesting results are observed. |
| 学科主题 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000877704700003 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35277]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering and Architecture, Linyi University, Linyi, Shandong 276000, China 2.Linyi City Key Lab of Appraisement and Strengthening in Building Structures, Linyi, Shandong 276000, China 3.Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, China |
| 推荐引用方式 GB/T 7714 | Lin, Shan,Zheng, Hong,Zhang, Zhihong,et al. Evaluation of permeability of soil & rock aggregate using meshless numerical manifold method[J]. COMPUTERS AND GEOTECHNICS,2022,151(-):-. |
| APA | Lin, Shan,Zheng, Hong,Zhang, Zhihong,&Li, Wei.(2022).Evaluation of permeability of soil & rock aggregate using meshless numerical manifold method.COMPUTERS AND GEOTECHNICS,151(-),-. |
| MLA | Lin, Shan,et al."Evaluation of permeability of soil & rock aggregate using meshless numerical manifold method".COMPUTERS AND GEOTECHNICS 151.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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