Stress-strain response and particle-scale behavior of sandy sediments containing hydrate interlayer: A numerical investigation using DEM
文献类型：期刊论文
| 作者 | Tian, Boyang2; You, Zeshao1; Wu, Peng2; Song, Yongchen2; Li, Yanghui2 |
| 刊名 | GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 134页码:19 |
| 关键词 | Natural gas hydrates Layered hydrate Mechanical properties Discrete element method Triaxial tests |
| ISSN号 | 2949-9097 |
| DOI | 10.1016/j.jgsce.2025.205541 |
| 英文摘要 | Accurately understanding the hydrate-bearing interlayered sandy reservoirs' geomechanical behavior is essential for safe exploitation and geological formation stability assessment. Currently, there are limited studies on the microscopic mechanisms and mechanical properties about layered hydrate-bearing sediment (HBS) reservoirs. In this study, a numerical simulation of the triaxial compression test was conducted using layered HBS models established by the discrete element method (DEM). The effects of the thickness, rotation angle and position of the hydrate interlayer on the numerical HBS mechanical properties were analyzed. Additionally, the particle displacement, rotation, and force chain evolution involved in the shear deformation of the HBS were monitored. Results indicated that: (1) The increase in hydrate layer thickness enhances failure strength, exhibits more pronounced strain softening, and restricts the radial development of the micro fabric to make the load-bearing chain thicker. (2) The position of the hydrate interlayer does not affect shear yield behavior but impacts particle displacement, residual strength, anisotropic property, and the hydrate force chain evolution. (3) The rotation angle of the hydrate interlayer has small influence on shear yield behavior and failure strength. However, the interlayer rotation angle of 45 degrees radial micro fabric develops the least and the buckling of the load-bearing chain is minimal. |
| 资助项目 | National Natural Science Founda-tion of China[52222608,42206229] ; National Natural Science Founda-tion of China[52331010] ; National Natural Science Founda-tion of China[U2344223] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001424238200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37111]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Yanghui |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Boyang,You, Zeshao,Wu, Peng,et al. Stress-strain response and particle-scale behavior of sandy sediments containing hydrate interlayer: A numerical investigation using DEM[J]. GAS SCIENCE AND ENGINEERING,2025,134:19. |
| APA | Tian, Boyang,You, Zeshao,Wu, Peng,Song, Yongchen,&Li, Yanghui.(2025).Stress-strain response and particle-scale behavior of sandy sediments containing hydrate interlayer: A numerical investigation using DEM.GAS SCIENCE AND ENGINEERING,134,19. |
| MLA | Tian, Boyang,et al."Stress-strain response and particle-scale behavior of sandy sediments containing hydrate interlayer: A numerical investigation using DEM".GAS SCIENCE AND ENGINEERING 134(2025):19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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