Analysis of nonlinear elastic spatiotemporal characteristics of the shallow subsurface
文献类型：期刊论文
| 作者 | Liu, Qian4; Feng, Xuan3; Chen, Bingrui2,4; Fehler, Michael1; Nilot, Enhedelihai3 |
| 刊名 | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
 |
| 出版日期 | 2025 |
| 卷号 | 155页码:8 |
| 关键词 | Nonlinear elasticity Ambient noise Tidal stress time-domain empirical Green's function |
| ISSN号 | 0886-7798 |
| DOI | 10.1016/j.tust.2024.106213 |
| 英文摘要 | During and after the destruction of underground structures, the elastic properties of subsurface rocks may undergo significant changes. Monitoring and detecting these subtle changes in elastic properties require techniques with high precision and high spatiotemporal resolution, which are challenging to achieve with conventional geophysical methods. Although nonlinear elastic characteristics have been used in seismic monitoring of faults and volcanoes, monitoring on fine spatiotemporal scales remains difficult. In this study, we developed a new technique to simultaneously monitor the nonlinear elastic properties of near-surface structures from both temporal and spatial perspectives by recording continuous seismic noise. We conducted a four-day continuous environmental noise monitoring campaign along a dense seismic array in Singapore. During the monitoring period, rock mass damage occurred along the measurement line. Using an approach analogous to "pump-probe" techniques, we analyzed the changes in nonlinear elastic properties during the local damage process at high spatiotemporal resolution. The results indicate that local damage can influence the nonlinear elastic behavior across the entire array. However, there are significant differences between the undamaged and damaged areas, as well as across different stages of damage. These observations and insights can provide timely warnings of minor changes in urban underground spaces, helping to prevent more significant damage and allowing for the implementation of effective, targeted measures. Moreover, this technique can accurately detect existing underground collapses and anomalous geological structures, which has important engineering implications for the detection of urban subsidence and the exploration of underground cavities in mining areas. It can play a crucial role in monitoring urban underground structural changes and providing early warnings of natural disasters areas. |
| 资助项目 | National Natural Science Foundation of China[42374146] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001395944400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37894]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Feng, Xuan |
| 作者单位 | 1.MIT, Earth Resources Lab, Room 54-225,77 Massachusetts Ave, Cambridge, MA 02139 USA 2.Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110167, Peoples R China 3.Jilin Univ, Coll Geoexplorat Sci & Technol, 938 Xi MinZhu St, Changchun 130026, Jilin, Peoples R China 4.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, Qian,Feng, Xuan,Chen, Bingrui,et al. Analysis of nonlinear elastic spatiotemporal characteristics of the shallow subsurface[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2025,155:8. |
| APA | Liu, Qian,Feng, Xuan,Chen, Bingrui,Fehler, Michael,&Nilot, Enhedelihai.(2025).Analysis of nonlinear elastic spatiotemporal characteristics of the shallow subsurface.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,155,8. |
| MLA | Liu, Qian,et al."Analysis of nonlinear elastic spatiotemporal characteristics of the shallow subsurface".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 155(2025):8. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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