Macro-Meso Fracture and Instability Behaviors of Hollow-Cylinder Granite Containing Fissures Subjected to Freeze-Thaw-Fatigue Loads
文献类型：期刊论文
| 作者 | Wang, Yu1; Song, Zhengyang1; Mao, Tianqiao2; Zhu, Chun3 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2022-04-01 |
| 页码 | 21 |
| 关键词 | Hollow-cylinder granite Freeze-thaw cycle Cyclic loads Fracture evolution Acoustic emission |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-022-02860-5 |
| 英文摘要 | Rock structural deterioration induced by coupled freeze-thaw and stress disturbance are a great concern for jointed rock mass during rock constructions in cold regions. Previous studies focused on fracture evolution of intact rock or flawed rock under freeze-thaw-static loads, but the coupling effect of freeze-thaw and cyclic loads on the pre-flawed hollow-cylinder rock is not well understood. This work investigated the influence of freeze-thaw on rock microstructure change and fatigue mechanical behaviors. Testing results show that rock strength, volumetric strain, and lifetime decrease with increasing F-T number. The stiffness degradation caused by cyclic loads is also impacted by the previous freeze-thaw damage. Additionally, the AE ring count and energy count decrease with the increase of F-T treatment. Large fracture signals are captured for rock that has smaller F-T cycles and at the stress-increasing moment. The AE b-value increases with F-T cycles, and it decreases rapidly near rock failure. Spectral analysis indicates that large-scaled cracking is prone to form for a sample having high F-T cycles. Moreover, 2D CT images reveal the differential crack network pattern at rock bridge segments and how it is affected by the previous freeze-thaw damage. The crack coalescence and hole collapse patterns and the associated structural deterioration of the rock bridge segment are obviously influenced by the F-T treatment. |
| WOS关键词 | ACOUSTIC-EMISSION ; SANDSTONE ; ROCK ; DAMAGE ; MODEL ; CT |
| 资助项目 | National Natural Science Foundation of China[52174069] ; Beijing Natural Science Foundation[8202033] ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power[ZDZX2020001] ; Fundamental Research Funds for the Central Universities[FRF-TP-20-004A2] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000777207000002 |
| 出版者 | SPRINGER WIEN |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power ; Key Laboratory of Geological Environment Intelligent Monitoring and Disaster Prevention and Control of Henan Province, North China University of Water Resources and Electric Power ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105034]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Wang, Yu |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Dept Civil Engn, Beijing Key Lab Urban Underground Space Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100190, Peoples R China 3.Hohai Univ, Sch Earth Sci & Engn, Nanjing 210098, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yu,Song, Zhengyang,Mao, Tianqiao,et al. Macro-Meso Fracture and Instability Behaviors of Hollow-Cylinder Granite Containing Fissures Subjected to Freeze-Thaw-Fatigue Loads[J]. ROCK MECHANICS AND ROCK ENGINEERING,2022:21. |
| APA | Wang, Yu,Song, Zhengyang,Mao, Tianqiao,&Zhu, Chun.(2022).Macro-Meso Fracture and Instability Behaviors of Hollow-Cylinder Granite Containing Fissures Subjected to Freeze-Thaw-Fatigue Loads.ROCK MECHANICS AND ROCK ENGINEERING,21. |
| MLA | Wang, Yu,et al."Macro-Meso Fracture and Instability Behaviors of Hollow-Cylinder Granite Containing Fissures Subjected to Freeze-Thaw-Fatigue Loads".ROCK MECHANICS AND ROCK ENGINEERING (2022):21. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。