Locating an Abandoned Mine Tunnel by MASW – A Feasibility Study with a Noisy Dataset
Paper
Suto, K. and Sugawara, J.. 2024. "Locating an Abandoned Mine Tunnel by MASW – A Feasibility Study with a Noisy Dataset." 6th Asia Pacific Meeting on Near Surface Geoscience and Engineering. Tsukuba, Japan 13 - 15 May 2024 Japan. https://doi.org/rg/10.3997/2214-4609.202472051
Paper/Presentation Title | Locating an Abandoned Mine Tunnel by MASW – A Feasibility Study with a Noisy Dataset |
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Presentation Type | Paper |
Authors | Suto, K. and Sugawara, J. |
Journal Citation | 2024, pp. 1-5 |
Number of Pages | 5 |
Year | 2024 |
Place of Publication | Japan |
Digital Object Identifier (DOI) | https://doi.org/rg/10.3997/2214-4609.202472051 |
Web Address (URL) of Paper | https://www.earthdoc.org/content/papers/10.3997/2214-4609.202472051 |
Web Address (URL) of Conference Proceedings | https://www.earthdoc.org/content/proceedings/6th-asia-pacific-meeting-on-near-surface-geoscience-and-engineering |
Conference/Event | 6th Asia Pacific Meeting on Near Surface Geoscience and Engineering |
Event Details | 6th Asia Pacific Meeting on Near Surface Geoscience and Engineering Delivery In person Event Date 13 to end of 15 May 2024 Event Location Tsukuba, Japan |
Abstract | An entrance to an old coal mine was found in a residential development site. Using this site, an experimental MASW survey was carried out. Because of the unfavourable environment, the data quality was poor and dispersion analyses for the fundamental mode Rayleigh waves were very difficult among the noise and higher mode features. To deal with this difficult situation, depth-velocity models with and without a mine tunnel void are made based on the first-pass velocity analysis. Then dispersion curves were calculated for these models. The modeled dispersion curves showed that a presence of tunnel causes a “down-to-the -left” trend in the frequency-velocity space. Using this information, the data were re-analysed for dispersion curves. The inversion reached S-wave velocity sections with low-velocity features where the tunnel is present. |
Contains Sensitive Content | Does not contain sensitive content |
Public Notes | There are no files associated with this item. |
Byline Affiliations | University of Bucharest, Romania |
University of Wollongong | |
University of Southern Queensland |
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