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Laboratory Experiments of a Ground-Penetrating Radar for Detecting Subsurface Cavities in the Vicinity of a Buried Pipe
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 Title & Authors
Laboratory Experiments of a Ground-Penetrating Radar for Detecting Subsurface Cavities in the Vicinity of a Buried Pipe
Hyun, Seung-Yeup;
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 Abstract
In this paper, a feasibility on a ground-penetrating radar for detecting subsurface cavities near buried pipes has been investigated. The experimental setup was implemented by employing an impulse ground-penetrating radar system, a xy Cartesian coordinate robot, an underground material filled tank, a metal pipe and a simulated cavity model. In particular, the simulated cavity model was constructed by packing Styrofoam chips and balls, which have both similar electrical properties to an air-filled cavity and a solid shape. Through typical three experiments, B-scan data of the radar have been acquired and displayed as 2-D gray-scale images. According to the comparison of B-scan images, we show that the subsurface cavities near the buried pipes can be detected by using the radar survey.
 Keywords
Ground-Penetrating Radar;Scaled-Down Measurement;Sinkhole;Subsurface Cavity;
 Language
Korean
 Cited by
 References
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