Investigation of the effective hydro-mechanical properties of soil-rock mixtures using the multiscale numerical manifold model
文献类型：期刊论文
| 作者 | Wu, Wenan; Yang, Yongtao; Zheng, Hong; Wang, Shuqing; Zhang, Ning; Wang, Yichen |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 155 |
| 关键词 | Effective hydro-mechanical properties Multiscale theory Numerical Manifold Method (NMM) Soil-Rock Mixtures (SRMs) |
| ISSN号 | 0266-352X |
| 英文摘要 | This study focuses on determination of the effective hydro-mechanical properties of a widespread geological me ' lange, the Soil-Rock Mixture (SRM), using the multiscale Numerical Manifold Method (NMM). Influences of the Volumetric Block Proportion (VBP), block size, block shape, block orientation angle and micro-dynamics on the effective properties are investigated thoroughly. The SRM structural models are generated within the NMM framework in a statistical manner. The effective properties are extracted using the multiscale theory where micro-dynamics is fully considered based on the extended Hill-Mandel lemma. Through numerical simulations, the VBP and block orientation angle prove to be the first and second most influential factors. A growing VBP leads to increasing deformation moduli but decreasing effective permeability and Biot's factor. Normal com-ponents of permeability and deformation tensors are positively proportional to the corresponding normal intersecting areas formed by sample cross-sections and blocks while shear components are positively propor-tional to sums of the normal and shear intersecting areas. Introducing micro-dynamics and diminishing the time step make the effective permeability and deformation moduli rise while Biot's coefficient decrease. The accuracy and stability of the multiscale NMM are validated by comparing present results with those of empirical formulae and single-scale numerical methods. |
| 学科主题 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000911834600001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34813]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Beijing University of Technology; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Wu, Wenan,Yang, Yongtao,Zheng, Hong,et al. Investigation of the effective hydro-mechanical properties of soil-rock mixtures using the multiscale numerical manifold model[J]. COMPUTERS AND GEOTECHNICS,2023,155. |
| APA | Wu, Wenan,Yang, Yongtao,Zheng, Hong,Wang, Shuqing,Zhang, Ning,&Wang, Yichen.(2023).Investigation of the effective hydro-mechanical properties of soil-rock mixtures using the multiscale numerical manifold model.COMPUTERS AND GEOTECHNICS,155. |
| MLA | Wu, Wenan,et al."Investigation of the effective hydro-mechanical properties of soil-rock mixtures using the multiscale numerical manifold model".COMPUTERS AND GEOTECHNICS 155(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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