An Inverted Heterogeneous Velocity Model for Microseismic Source Location in Deep Buried Tunnels
文献类型：期刊论文
| 作者 | Liu, Liu; Li, Shaojun; Xiao, Yaxun; Chen, Shujie; Wang, Zhaofeng; Feng, Guangliang; Wang, Yao |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 56期号:7页码:4855 |
| 关键词 | Deep buried tunnel Velocity inversion Microseismic location Traveling time tomography Dispersion analysis |
| ISSN号 | 0723-2632 |
| 英文摘要 | Microseismic (MS) monitoring is an effective and widely applied technology for early warning and prevention of rockburst disasters in deeply buried tunnels. The location of the microseismic source is the top priority of MS monitoring. However, an unknown complex and consistently changing velocity distribution of surrounding rocks is a major challenge for accurate MS source location. A real-time velocity inversion method of monitoring areas during tunnel drilling is urgently needed to provide a newly updated heterogenous velocity model. This paper develops a velocity inversion strategy for surrounding rocks using drilling and blasting seismic data. Inverted heterogeneous velocity models can be obtained at multiple construction stages with drilling. An L2 norm double-difference location method based on the simplex optimization method is provided for MS location using heterogeneous velocity models. Numerical studies test the accuracy of the proposed velocity inversion and MS location method. Noticeable improvement in location accuracy can be observed using updating inverted heterogeneous velocity models. Finally, we conducted a field experiment at two new tunnels with a burial depth of 2400 m in the China Jinping Underground Laboratory Phase II. Multiple blasting sources with known coordinates verified the performance of the proposed MS location method. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000959125800001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34944]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State University System of Florida; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 3.University of Florida |
| 推荐引用方式 GB/T 7714 | Liu, Liu,Li, Shaojun,Xiao, Yaxun,et al. An Inverted Heterogeneous Velocity Model for Microseismic Source Location in Deep Buried Tunnels[J]. ROCK MECHANICS AND ROCK ENGINEERING,2023,56(7):4855. |
| APA | Liu, Liu.,Li, Shaojun.,Xiao, Yaxun.,Chen, Shujie.,Wang, Zhaofeng.,...&Wang, Yao.(2023).An Inverted Heterogeneous Velocity Model for Microseismic Source Location in Deep Buried Tunnels.ROCK MECHANICS AND ROCK ENGINEERING,56(7),4855. |
| MLA | Liu, Liu,et al."An Inverted Heterogeneous Velocity Model for Microseismic Source Location in Deep Buried Tunnels".ROCK MECHANICS AND ROCK ENGINEERING 56.7(2023):4855. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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