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Deformation forecasting and stability analysis of large-scale underground powerhouse caverns from microseismic monitoring
文献类型：期刊论文
| 作者 | Dai, Feng2; Li, Biao2; Xu, Nuwen2; Fan, Yilin3; Zhang, Chuanqing1 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2016 |
| 卷号 | 86页码:269-281 |
| 关键词 | Underground powerhouse caverns Microseismic monitoring Excavation Stability analysis Deformation forecasting |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2016.05.001 |
| 英文摘要 | To assess the stability of the underground powerhouse caverns and analyse the failure mechanism of the surrounding rock mass at the Baihetan hydropower station in southwest China, a high-resolution microseismic (MS) monitoring system was implemented in the left-bank underground powerhouse caverns. Based on the temporal and spatial distribution of MS events, the correlation between MS activities and construction was established, and three damage regions for the surrounding rock mass during excavation were identified. MS clusters were found to occur most often in stress-concentration regions of the underground powerhouse caverns and to result from various factors, including excavation-induced unloading and geological structure activation. The seismic source parameters (i.e., moment magnitudes and (S-wave) to (P-wave) energy ratios, E-s/E-p) of the three MS clusters demonstrate the different failure modes and risks of the surrounding rock mass. The temporospatial evolution of the MS activities, apparent stress, and cumulative apparent volume in localized rock mass during the period of a typical large deformation were used to develop a comprehensive analytical method for forecasting the deformation of the surrounding rock mass. Thus, this comprehensive analytical method, which incorporates MS monitoring, conventional monitoring, geological survey and construction, is promising for identifying the damage zones and forecasting the macro-deformation of the surrounding rock mass in underground powerhouse caverns subjected to excavation. (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:000376764600027 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3888]  |
| 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.Sichuan Univ, Coll Water Resource & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610064, Sichuan, Peoples R China; 3.China Three Gorges Corp ; |
| 推荐引用方式 GB/T 7714 | Dai, Feng,Li, Biao,Xu, Nuwen,et al. Deformation forecasting and stability analysis of large-scale underground powerhouse caverns from microseismic monitoring[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2016,86:269-281. |
| APA | Dai, Feng,Li, Biao,Xu, Nuwen,Fan, Yilin,&Zhang, Chuanqing.(2016).Deformation forecasting and stability analysis of large-scale underground powerhouse caverns from microseismic monitoring.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,86,269-281. |
| MLA | Dai, Feng,et al."Deformation forecasting and stability analysis of large-scale underground powerhouse caverns from microseismic monitoring".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 86(2016):269-281. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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