Deep tunnel detection using crosshole radar tomography
By: Ken Hauser, Michael Jackson, John Lane, and Richard Hodges
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Abstract
As part of continuing research aimed at the detection of subsurface tunnels and voids, the U.S. Bureau of Mines
recently completed a cooperative study with the U.S. Geological Survey at a surface gold mine in the Black
Hills mining district of South Dakota. The occurrence of older, poorly mapped mine workings in the section
create a consistent health and safety concern for mine employees as well as economic concerns about potential
damage to equipment during daily operations at the mine. Accurate knowledge regarding the location of these
abandoned tunnels prior to interception by the current mining operation would be beneficial. Previous research
efforts on site have demonstrated the suitability of several surface geophysical technologies in detecting shallow
workings which present an immediate problem in the safe conduct of the mine operation. Another concern is
the existence of deeper abandoned mine tunnels, which occur further in advance of the surface mining operation.
In the design and development of a new mine pit, the placement of access roads over a tunnel would be
hazardous, due to the volume of traffic and the weight these haulage trucks can carry. In this study we evaluate
cross borehole radar tomography methods which might be used to image mine openings in the deep subsurface,
and lead to more prudent placement of pit haulage roadways. A pulsed radar system was used to collect both
velocity and amplitude information about local rock conditions, and multiple borehole data allowed for the use
of 3-D imaging techniques.
Suggested Citation
Hauser, K., Jackson, M., Lane, J., Hodges, R., 1995, Deep tunnel detection using crosshole radar tomography, in Proceedings of the symposium on the Application of geophysics to engineering and environmental problems: SAGEEP '95, Orlando, FL, 1995, p. 853-857.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Deep tunnel detection using crosshole radar tomography |
| Year Published | 1995 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Office of Ground Water |
| Description | 5 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Proceedings of the symposium on the Application of geophysics to engineering and environmental problems: SAGEEP '95 |
| First page | 853 |
| Last page | 857 |
| Conference Title | 8th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems |
| Conference Location | Orlando, FL |
| Conference Date | 1995 |
| Country | United States |
| State | South Dakota |