Characterization of Abandoned Mine Voids Under Roadway with Land-Streamer Seismic Waves
The paper presents an application of two-dimensional (2-D) time-domain waveform tomography for characterization of abandoned underground mine voids under a highway. Measured surface-based seismic wave fields are inverted by a full waveform inversion technique that is founded on a finite-difference solution of 2-D elastic wave equations and the Gauss–Newton inversion method. The key advantage of this waveform approach is the ability to generate all possible wave propagation modes of seismic wave fields (body waves and Rayleigh waves) by forward modeling; the modes are then compared with measured data to infer complex subsurface properties. Both the pressure wave and shear wave velocities are inverted independently and simultaneously to increase the credibility of characterized profiles. Real experimental data sets were collected on asphalt pavement by using a land streamer, which did not require that geophones be coupled into the pavement and allowed the testing system to be moved along the road quickly. The seismic results show that the waveform analysis was able to delineate two mine voids embedded at a depth of about 15 m. The existence of the voids was confirmed by confirmation drilling.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309369763
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Authors:
- Sullivan, Brian
- Tran, Khiem T
- Logston, Brian
- Publication Date: 2016
Language
- English
Media Info
- Media Type: Print
- Features: Figures; Photos; References;
- Pagination: pp 71–79
- Monograph Title: Geological, Geoenvironmental, and Geotechnical Engineering, Volume 3
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Issue Number: 2580
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Air voids; Asphalt pavements; Elastic waves; Mines; Time domain analysis; Tomography; Waveform analysis
- Uncontrolled Terms: Two dimensional analysis
- Subject Areas: Geotechnology; Highways; Pavements;
Filing Info
- Accession Number: 01593900
- Record Type: Publication
- ISBN: 9780309369763
- Report/Paper Numbers: 16-1393
- Files: TRIS, TRB, ATRI
- Created Date: Mar 18 2016 12:38PM