Time-delayed failure process of granite and its energy evolution and acoustic emission characteristics
文献类型：期刊论文
| 作者 | Feng, Guangliang2,3; Ma, Qi2,4; He, Zhou5; Su, Guoshao3; Chen, Bingrui2; Xu, Dingping2; He, Jianhua1 |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 157页码:19 |
| 关键词 | True-triaxial unloading Time-delayed Failure processes Energy evolution AE |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2023.107854 |
| 英文摘要 | Time-delayed rockbursts during underground engineering construction seriously endangered the engineering safety. In this paper, an experiment of rock time-delayed failure is designed and conducted, and the associated energy evolution laws and acoustic emission (AE) characteristics were analyzed. There is an obvious time effect of granite time-delayed failure under true triaxial conditions. There are two calm periods in granite time-delayed failure process. The failure modes can be divided into two categories, i.e., time-delayed failure I and time-delayed failure II. In the load maintenance stage, the total energy continues to increase, the elastic strain energy didn't change significantly, and the dissipated strain energy increases rapidly. For time-delayed failure I, when the AE hits rises sharply, it reached its maximum subsequently, and the first small peak of absolute energy appeared. On the eve of the rockburst, the AE hits began to rise gradually, and the absolute energy was with a small protrusion. For time-delayed failure II, when the AE hits rises rapidly, it reached a high level. The small peak of absolute energy appeared. In the eve of the rockburst, the hits showed a steep increase trend and reached its maximum, the absolute energy also presented a rapid rise trend. The research results have certain reference value for the early warning and control of the time-delayed rockbursts in underground engineering. |
| 资助项目 | National Natural Science Foundation of China[41972295] ; National Natural Science Foundation of China[51979268] ; Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, China[2019ZDK034] ; Natural Science Basic Research Program of Shaanxi Province[2022JM-191] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001165913300001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40643]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Feng, Guangliang |
| 作者单位 | 1.PowerChina Chengdu Engn Corp Ltd, Chengdu 610072, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 3.Guangxi Univ, Guangxi Key Lab Disaster Prevent & Engn Safety, Nanning 530000, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Huadian Jinsha River Upstream Hydropower Dev Co Lt, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Guangliang,Ma, Qi,He, Zhou,et al. Time-delayed failure process of granite and its energy evolution and acoustic emission characteristics[J]. ENGINEERING FAILURE ANALYSIS,2024,157:19. |
| APA | Feng, Guangliang.,Ma, Qi.,He, Zhou.,Su, Guoshao.,Chen, Bingrui.,...&He, Jianhua.(2024).Time-delayed failure process of granite and its energy evolution and acoustic emission characteristics.ENGINEERING FAILURE ANALYSIS,157,19. |
| MLA | Feng, Guangliang,et al."Time-delayed failure process of granite and its energy evolution and acoustic emission characteristics".ENGINEERING FAILURE ANALYSIS 157(2024):19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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