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| | Abstract | | A labor-saving 3D electrical prospecting method was conducted to estimate the subsurface structures for a tunnel construction site in Hokkaido, Japan. As a result of 3D analyses, a continuity of the anomalous resistivity distribution was confirmed. This information is very useful for estimation of tunnel geological properties and its geotechnical problems during tunnel construction. This paper describes the applicability of a labor-saving 3D electrical prospecting method for the tunnel geological investigation. |
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