Effect of stress difference and microfabric on the strength of deep granite
文献类型：期刊论文
| 作者 | Gu, Liangjie2,3; Zhao, Jun2; Zhou, Yangyi2; Zhang, Yan3; Wang, Zhaofeng1 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 84期号:3页码:18 |
| 关键词 | Granite Microfabric Stress difference True triaxial compression Strength characteristics |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-025-04148-8 |
| 英文摘要 | A multitude of subterranean engineering projects are established within granite bodies, where the mechanical properties of granite are predominantly influenced by the existing stress environment and inherent microfabric. As the depth of engineering projects increases, the characteristic stress differential becomes more pronounced, indicating a discernible distinction from the stress conditions encountered in shallow engineering applications. To elucidate the influence mechanism of microfabric and stress disparity on granite strength, a quantitative analysis is conducted on the microfabric of five types of granites. The results show that the strength of granite is primarily determined by initial damage, structural coefficient, biotite content, and quartz content. With an increase in stress differential, the impact of initial damage and biotite content on granite strength diminishes, while the influence of quartz content and structural coefficient on granite strength begins to intensify. A subjective and objective comprehensive evaluation model is established to quantify the weight ratio of microfabric on granite strength. The coupling mechanism of stress difference and microfabric on the granite strength is revealed from the rock fracture directional development induced by the increase of stress difference. The results can be used as a guide to understand the granite strength characteristics according to the lithofacies and true three-dimensional stress environment, and provide an effective theoretical basis for the safe construction of deep granite engineering. |
| 资助项目 | National Natural Science Foundation of China[52409125] ; National Natural Science Foundation of China[52209125] ; National Natural Science Foundation of China[2025ZNSFSC1370] ; Sichuan Science and Technology Program[SKLGP2022Z008] ; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Independent Research Project ; Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001419175900003 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37036]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Gu, Liangjie |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Northeastern Univ, Key Lab Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Peoples R China 3.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Liangjie,Zhao, Jun,Zhou, Yangyi,et al. Effect of stress difference and microfabric on the strength of deep granite[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2025,84(3):18. |
| APA | Gu, Liangjie,Zhao, Jun,Zhou, Yangyi,Zhang, Yan,&Wang, Zhaofeng.(2025).Effect of stress difference and microfabric on the strength of deep granite.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,84(3),18. |
| MLA | Gu, Liangjie,et al."Effect of stress difference and microfabric on the strength of deep granite".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 84.3(2025):18. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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