Energy Characteristics of Micro-Seismic Events Associated with Immediate Rockbursts in Deep Tunnels
文献类型：会议论文
| 作者 | Yu, Yang1; Chen, Bing-Rui2; Xu, Chang-Jie1; Diao, Xin-Hong1; Tong, Li-Hong1; Shi, Yu-Feng1 |
| 出版日期 | 2016 |
| 会议日期 | JUL 25-27, 2016 |
| 会议地点 | Shangdong, PEOPLES R CHINA |
| 关键词 | Drill-and-blast method (DBM) Tunnel boring machine (TBM) Immediate rock burst Micro-seismic events Micro-seismic energy Rockburst intensity |
| 期号 | 260 |
| 页码 | 218-225 |
| 英文摘要 | This study integrates micro-seismic data and data from hundreds of rockbursts of different intensities that occurred in four deep headrace tunnels and one water drainage tunnel at Jinping II hydropower station in Sichuan province, China. The overburden of the studied tunnels is between 1900 m and 2525 m, largely excavated in marble. The tunnels have a total length of 12.4 km. The micro-seismic energy produced during the development of immediate rockbursts excavated with the drill-and-blast method (DBM) and a tunnel boring machine (TBM) were studied. The results indicated that the daily maximum micro-seismic energy can be used as a basis for estimating the rockburst intensity: no rockburst, weak rockbursts, moderate rockbursts, and intense rockbursts, and that the common logarithms of the micro-seismic energy of each level was < 4, > 4 and < 5, > 5 and < 6, > 6, respectively. For the same intensity, rockbursts excavated by TBM and DBM have the same range but different distribution characteristics. The micro-seismic energy can be used as a guide to establish a dynamic warning system based on the evolution of micro-seismic events to reduce the risk of immediate rockbursts during excavation of deep, hard-rock tunnels. |
| 会议录 | GEO-CHINA 2016: EMERGING TECHNOLOGIES IN TUNNEL ENGINEERING, MODELING, DESIGN, CONSTRUCTION, REPAIR, AND REHABILITATION
 |
| 会议录出版者 | AMER SOC CIVIL ENGINEERS |
| 会议录出版地 | NEW YORK |
| 语种 | 英语 |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| WOS记录号 | WOS:000400180100027 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4902]  |
| 专题 | 岩土力学所知识全产出_会议论文 国家重点实验室知识产出_会议论文 |
| 作者单位 | 1.East China Jiaotong Univ, Coll Civil Engn & Architecture ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Yu, Yang,Chen, Bing-Rui,Xu, Chang-Jie,et al. Energy Characteristics of Micro-Seismic Events Associated with Immediate Rockbursts in Deep Tunnels[C]. 见:. Shangdong, PEOPLES R CHINA. JUL 25-27, 2016. |
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。