한국지구물리탐사학회:학술대회논문집
- 2007.06a
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- Pages.215-218
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- 2007
Field experiment of ERT to detect a tunnel
터널 탐지를 위한 전기비저항 토모그래피 응용 실험
- Yi, Myeong-Jong (Geotechnical Engineering Div., KIGAM) ;
- Kim, Jung-Ho (Geotechnical Engineering Div., KIGAM) ;
- Cho, Seong-Jun (Geotechnical Engineering Div., KIGAM) ;
- Kobayashi, Takao (Geotechnical Engineering Div., KIGAM)
- Published : 2007.06.07
Abstract
Tunnel detection is known to be one of the challenging problems in geophysical society. Among various geophysical methods, we tried to examine the applicability of electrical resistivity tomography (ERT) method to detect empty tunnel. In this study, we analyzed the ERT data acquired at the test site for tunnel detection. The inversion results have shown reasonable image of the tunnel although the resolution is quite poor. Moreover, we could obtain the three-dimensional attitude of tunnel through 3-D ERT imaging. Therefore, we expect that ERT can make contribution to the tunnel detection problem and further research effort such as fusion of geophysical methods will provide more reliable tunnel detection capability.