Identification of rock discontinuities by coda wave analysis while borehole drilling in deep buried tunnels
文献类型：期刊论文
| 作者 | Liu, Liu5; Li, Shaojun5; Zheng, Minzong5; Wang, Yao1; Shen, Jian3,5; Shi, Zhenming3; Xia, Chengzhi3; Zhou, Junbo2,4 |
| 刊名 | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 153页码:15 |
| 关键词 | Rock discontinuities Coda wave Detection while drilling Wave velocity Deep buried tunnel |
| ISSN号 | 0886-7798 |
| DOI | 10.1016/j.tust.2024.105969 |
| 英文摘要 | Rock discontinuities are widely and randomly developed in deep buried tunnels and have a profound impact on construction safety, support design, and geological hazard prevention. Identifying these discontinuities while drilling is a critical but challenging task. This paper presents an innovative approach that leverages the coda wave analysis method to assess rock discontinuities during impact drilling in deep tunnels. Our method is facilitated by a drilling process detection (DPD) system, which records coda waves generated by impact drilling pit sources. We observe that coda waves, with dominant frequencies of 500 Hz to 1 kHz, can be detected in heterogeneous rock discontinuities featuring decimeter-scale discontinuities. Building upon this observation, we introduce a rock discontinuity index (RDI), which is a novel metric designed to highlight low-velocity anomalies associated with rock discontinuities along boreholes. To validate the efficacy of the approach, we conduct numerical simulations of checkerboard and random realistic rock models and perform field tests in deep buried tunnels. A borehole optical scanner is utilized to compare the identified rock discontinuity results. The results affirm that the coda wave-based method can reliably identify rock discontinuities by RDI peaks, even under highly heterogeneous geological conditions. The proposed method offers a practical means for identifying discontinuities and assessing geological conditions during impact borehole drilling. |
| 资助项目 | National Natural Science Foundation of China[42207211] ; National Natural Science Foundation of China[42202320] ; Key Laboratory of Geotechnical and Underground En-gineering of the Ministry of Education, Tongji University[KLE-TJGE-G2304] ; Key Research and Development Program of Shaanxi[2023-YBSF-238] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001280638700001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42084]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Shaojun; Zheng, Minzong |
| 作者单位 | 1.Guangzhou Univ, Sch Civil Engn, Guangzhou 510006, Peoples R China 2.Tsinghua Univ, Dept Hydraul & Hydropower Engn, Beijing 100084, Peoples R China 3.Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai, Peoples R China 4.Hubei Commun Planning & Design Inst Co Ltd, Wuhan 430051, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Liu,Li, Shaojun,Zheng, Minzong,et al. Identification of rock discontinuities by coda wave analysis while borehole drilling in deep buried tunnels[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2024,153:15. |
| APA | Liu, Liu.,Li, Shaojun.,Zheng, Minzong.,Wang, Yao.,Shen, Jian.,...&Zhou, Junbo.(2024).Identification of rock discontinuities by coda wave analysis while borehole drilling in deep buried tunnels.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,153,15. |
| MLA | Liu, Liu,et al."Identification of rock discontinuities by coda wave analysis while borehole drilling in deep buried tunnels".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 153(2024):15. |
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。