热门
Experimental study on the prediction of rockburst hazards induced by dynamic structural plane shearing in deeply buried hard rock tunnels
文献类型：期刊论文
| 作者 | Meng, Fanzhen1,2; Zhou, Hui1; Wang, Zaiquan2; Zhang, Liming2; Kong, Liang2; Li, Shaojun1; Zhang, Chuanqing1 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2016 |
| 卷号 | 86页码:210-223 |
| 关键词 | Stress drop Fault-slip rockburst Prediction Acoustic emission b-value |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2016.04.013 |
| 英文摘要 | To investigate methods for predicting bursts induced by the shear failure of structural planes in the deeply buried hard rock tunnels, shear tests were performed under various normal stresses on completely occlusive granite joints that were created via tension splitting. In these experiments, stress drops resulting from shear off of asperities on the surface of granite rigid structural plane, which can trigger a fault-slip rockburst, were reproduced, and the acoustic emissions (AEs) were monitored during shearing. The AE characteristics were analysed, and a method based on the AE b-value was developed to predict stress drops and the fault-slip rockbursts induced by the stress drops. The b-value continuously decreased before the stress drop and dropped to approximately 0.8 or less at the point of the violent post peak shear stress drop. Moreover, the b-value tended to decrease to a relative minimum during the stick slip period when the energy increased sharply if the energy rate was greater than 10(4), and a lower b-value was associated with a higher rockburst probability and intensity. The b-value generally decreased as the normal stress increased, which increased the risk of rockburst induced by the dynamic shear failure of granite joints. Moreover, the static and dynamic shear failure of the joints was easily distinguished when the b-value was used as a predictor. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000376764600021 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3886]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn 2.Qingdao Univ Technol, Coll Sci; |
| 推荐引用方式 GB/T 7714 | Meng, Fanzhen,Zhou, Hui,Wang, Zaiquan,et al. Experimental study on the prediction of rockburst hazards induced by dynamic structural plane shearing in deeply buried hard rock tunnels[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2016,86:210-223. |
| APA | Meng, Fanzhen.,Zhou, Hui.,Wang, Zaiquan.,Zhang, Liming.,Kong, Liang.,...&Zhang, Chuanqing.(2016).Experimental study on the prediction of rockburst hazards induced by dynamic structural plane shearing in deeply buried hard rock tunnels.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,86,210-223. |
| MLA | Meng, Fanzhen,et al."Experimental study on the prediction of rockburst hazards induced by dynamic structural plane shearing in deeply buried hard rock tunnels".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 86(2016):210-223. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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。