Fracture Characteristics and Quantitative Analysis of Anisotropic Rock with Direction-Arranged Minerals Subjected to Triaxial Cyclic Loading: A Case of Biotite Quartz Schist
文献类型：期刊论文
| 作者 | Bao, Han2,4; Wang, Yankai4; Liu, Changqing4; Qi, Qun4; Lan, Hengxing5; Qi, Shengwen1; Li, Bo6; Sha, Peng3; Lv, Hongtao4 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2025-08-11 |
| 卷号 | N/A |
| 关键词 | Biotite quartz schist Cyclic loading CT scanning Anisotropic Fracture characteristics Crack parameters |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-025-04808-x |
| 产权排序 | 2 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | The failure of engineering rock masses is a progressive mechanical process, the distinct anisotropic structure of leads to complex failure responses. These responses differ significantly from those of anisotropic rocks with macroscopic bedding (ARMB). However, the fracture evolution of anisotropic rock with direction-arranged minerals (ARDAM) remains insufficiently understood. To explore the fracture characteristics of ARDAM after progressive failure, the biotite quartz schist, a typical ARDAM material with different schistosity angles, was used to conduct triaxial cyclic loading tests under various confining pressures and CT scanning tests. The 3D reconstruction and parameter extraction of cracks were then completed by an improved technique for identifying cracks. This study explored the influence of confining pressure and schistosity angle on fracture evolutions, and analyzed the differences in fracture characteristics between two anisotropic rocks with direction-arranged minerals and macroscopic beddings, respectively. Results show that the failure modes transition from tensile-shear mixed failure to shear-slip failure to typical shear failure with increasing schistosity angle, and these transitions are associated with a distinct U-shaped trend in crack morphology and crack distribution parameters. As confining pressure increases, crack propagation modes transition from intergranular expansion to Y-shaped transgranular expansion, ultimately forming a network-like transgranular structure. The evolution of cracks reveals the macroscopic fracture phenomenon of ARDAM, which ranges from brittle to ductile failure. The fracture characteristics in ARDAM are minimally influenced by varied confining pressure, whereas there is a strong influence in ARMB. This study offers a theoretical foundation for understanding directional reinforcement and fracture behavior in schist engineering. |
| URL标识 | 查看原文 |
| WOS关键词 | MECHANICAL-BEHAVIOR ; PROPAGATION |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001576064600001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217472]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Bao, Han |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100101, Peoples R China; 2.Xian Key Lab Geotech Engn Green & Intelligent Tra, Xian 710064, Peoples R China 3.Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China; 4.Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China; 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China; 6.Tongji Univ, Coll Civil Engn, Shanghai 200092, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Bao, Han,Wang, Yankai,Liu, Changqing,et al. Fracture Characteristics and Quantitative Analysis of Anisotropic Rock with Direction-Arranged Minerals Subjected to Triaxial Cyclic Loading: A Case of Biotite Quartz Schist[J]. ROCK MECHANICS AND ROCK ENGINEERING,2025,N/A. |
| APA | Bao, Han.,Wang, Yankai.,Liu, Changqing.,Qi, Qun.,Lan, Hengxing.,...&Lv, Hongtao.(2025).Fracture Characteristics and Quantitative Analysis of Anisotropic Rock with Direction-Arranged Minerals Subjected to Triaxial Cyclic Loading: A Case of Biotite Quartz Schist.ROCK MECHANICS AND ROCK ENGINEERING,N/A. |
| MLA | Bao, Han,et al."Fracture Characteristics and Quantitative Analysis of Anisotropic Rock with Direction-Arranged Minerals Subjected to Triaxial Cyclic Loading: A Case of Biotite Quartz Schist".ROCK MECHANICS AND ROCK ENGINEERING N/A(2025). |
入库方式： OAI收割
来源：地理科学与资源研究所
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