Determining S-Wave Arrival Times for Microseismic Monitoring in Tunnels Based on Instantaneous Phase Difference of Sensors
文献类型：期刊论文
| 作者 | Xiao, Yaxun1; Chen, Shujie1,3; Liu, Liu1; Feng, Guangliang1; Zhou, Junbo2; Hou, Dongbo2; Li, Shaojun1; Guo, Jianing1,3 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2023-12-01 |
| 页码 | 17 |
| 关键词 | Tunnel Microseismic location S-wave arrival Rockburst Instantaneous phase |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-023-03648-x |
| 英文摘要 | Accurately ascertaining the S-wave arrival times of microseismic signals is crucial for improving the accuracy with which microseismic events can be located. However, the first arrival of an S-wave is often overlapped by the P-wave which can make it difficult to accurately determine the arrival time of the S-wave in tunnels. Therefore, an accurate method for determining the S-wave arrival time of microseismic signals in tunnels is urgently needed. In this paper, a novel method is proposed based on the instantaneous phase difference intensity (IPDI) of the S-wave between two microseismic sensors. The peaks in the IPDI directly indicate the first breaking of an S-wave thus allowing the arrival time of the S-wave to be identified. Tests using synthetic signals verify that the IPDI method can correctly determine the arrival time of an S-wave when the first break of the S-wave is overlapped by the P-wave. The IPDI method was further applied to microseismic monitoring in a deeply buried tunnel in the Jinping II hydropower station in China. The IPDI peaks were found to successfully highlight the arrival of S-waves that could not be determined manually. The location accuracy of rockburst and microseismic events was thus significantly improved using the new IPDI method. A novel index (IPDI) is introduced to highlight the first break of microseismic S-wave based on the instantaneous phase of sensors.The IPDI method can identify the S-wave arrival time even in near-field MS monitoring cases where S- and P waves overlap.The IPDI-picked S-wave arrival time substantially improves the MS location accuracy. |
| 资助项目 | National Natural Science Foundation of China |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001122304400002 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40088]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Liu; Feng, Guangliang |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Hubei Commun Planning & Design Inst Co Ltd, Wuhan 430051, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Yaxun,Chen, Shujie,Liu, Liu,et al. Determining S-Wave Arrival Times for Microseismic Monitoring in Tunnels Based on Instantaneous Phase Difference of Sensors[J]. ROCK MECHANICS AND ROCK ENGINEERING,2023:17. |
| APA | Xiao, Yaxun.,Chen, Shujie.,Liu, Liu.,Feng, Guangliang.,Zhou, Junbo.,...&Guo, Jianing.(2023).Determining S-Wave Arrival Times for Microseismic Monitoring in Tunnels Based on Instantaneous Phase Difference of Sensors.ROCK MECHANICS AND ROCK ENGINEERING,17. |
| MLA | Xiao, Yaxun,et al."Determining S-Wave Arrival Times for Microseismic Monitoring in Tunnels Based on Instantaneous Phase Difference of Sensors".ROCK MECHANICS AND ROCK ENGINEERING (2023):17. |
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。