Numerical Investigation of Hydro-Mechanical (HM) Effect on Meso-Failure Properties of Granite Using Improved HM Grain-Based Model
文献类型：期刊论文
| 作者 | Wang, Sai1,4; Liu, Xuewei1,5; Liu, Bin1,5; Huang, Yanhua3; Liu, Qingcheng1,5; Liu, Quansheng2; Luo, Jin4 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2024-10-31 |
| 页码 | 24 |
| 关键词 | HM-GBM Hydro-mechanical coupling Meso-failure behavior Granite DEM |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-024-04234-5 |
| 英文摘要 | Investigating the cracking behavior of rock under hydro-mechanical coupling (HM) is essential for understanding macro-failure mechanism. However, the effect of rock mineral structure on failure process is less considered using traditional HM algorithm in discrete element method (DEM). A combined grain-based model (GBM) with improved HM algorithm (HM-GBM) has been proposed, which the mineral crystal structure and meso-failure process can be described, and fluid can flow differently along the crystal boundary and inside of crystal. Then, the algorithm and mesoscopic parameters calibration method has been developed. The proposed model was validated by comparing with theoretical and experimental results. Furthermore, five different seepage pressures (i.e. 2, 4, 6, 8, and 10 MPa) were set to investigate effect of HM on meso-failure characteristics at the mineral scale. The results show that with increasing of seepage pressure, the proportion of shear micro-cracks increases, the acoustic emission (AE) rupture scale as well as peak strength decreases, while AE b value first decreases and then increases. The micro-cracks of granite are mainly intergranular tensile cracks, followed by intragranular tensile cracks. Besides, the initial cracks first generated in feldspar, then are quartz and mica. Finally, the meso-failure mechanisms of granite under HM were discussed. |
| 资助项目 | National Natural Science Foundation of China[U22A20234] ; National Natural Science Foundation of China[2023BCB121] ; Hubei Province key research and development project[2023020201010079] ; Wuhan innovation supporting projects |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001344994900001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42965]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Bin |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Wuhan Univ, Sch Civil Engn, Key Lab Safety Geotech & Struct Engn Hubei Prov, Wuhan 430072, Peoples R China 3.China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou 221116, Peoples R China 4.China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Sai,Liu, Xuewei,Liu, Bin,et al. Numerical Investigation of Hydro-Mechanical (HM) Effect on Meso-Failure Properties of Granite Using Improved HM Grain-Based Model[J]. ROCK MECHANICS AND ROCK ENGINEERING,2024:24. |
| APA | Wang, Sai.,Liu, Xuewei.,Liu, Bin.,Huang, Yanhua.,Liu, Qingcheng.,...&Luo, Jin.(2024).Numerical Investigation of Hydro-Mechanical (HM) Effect on Meso-Failure Properties of Granite Using Improved HM Grain-Based Model.ROCK MECHANICS AND ROCK ENGINEERING,24. |
| MLA | Wang, Sai,et al."Numerical Investigation of Hydro-Mechanical (HM) Effect on Meso-Failure Properties of Granite Using Improved HM Grain-Based Model".ROCK MECHANICS AND ROCK ENGINEERING (2024):24. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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