Failure analysis of soil-rock mixture slopes using coupled MPM-DEM method
文献类型：期刊论文
| 作者 | Li, Jianguo1,2; Wang, Bin1,2; Pan, Pengzhi1,2; Chen, Hao1; Wang, Di1; Chen, Penglin1,2 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 169页码:18 |
| 关键词 | Material point method Discrete element method Soil -rock mixture Slope failure Soil -rock interaction Concurrent solving scheme |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2024.106226 |
| 英文摘要 | A 3-D concurrent MPM-DEM (material point method - discrete element method) scheme is proposed and developed in this paper to simulate soil -rock mixture slopes. The MPM and DEM are treated as two individual parts linked by the coupled contact force. Compared with MPM, the proposed MPM-DEM scheme provides a more realistic contact detection. Compared with DEM, the scheme can model such cases more efficiently and conveniently. Based on the characteristics of the soil -rock mixture, a CPU-GPU concurrent solving scheme is introduced, which can improve the efficiency and make full use of the computational resources of both GPU and CPU. The accuracy of the MPM-DEM scheme is validated by three benchmark examples, i.e ., a block sliding on an inclined plane, granular flow impacting blocks, and collapse of hybrid granular columns. The failure mode and sliding distance of soil -rock mixture slopes are analyzed using the proposed MPM-DEM scheme and compared to a pure MPM. Influencing factors such as soil -rock friction and cohesion, rock content, and rock size are studied. The results indicate that this scheme can well capture the soil -rock interface and deal with complex interactions between soil and rock. |
| 资助项目 | National Nature Science Foundation of China[52379111] ; National Nature Science Foundation of China[51979270] ; CAS Pioneer Hundred Talents Program |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001218974800001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41252]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wang, Bin |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jianguo,Wang, Bin,Pan, Pengzhi,et al. Failure analysis of soil-rock mixture slopes using coupled MPM-DEM method[J]. COMPUTERS AND GEOTECHNICS,2024,169:18. |
| APA | Li, Jianguo,Wang, Bin,Pan, Pengzhi,Chen, Hao,Wang, Di,&Chen, Penglin.(2024).Failure analysis of soil-rock mixture slopes using coupled MPM-DEM method.COMPUTERS AND GEOTECHNICS,169,18. |
| MLA | Li, Jianguo,et al."Failure analysis of soil-rock mixture slopes using coupled MPM-DEM method".COMPUTERS AND GEOTECHNICS 169(2024):18. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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