Integrated application of borehole radar reflection and resistivity tomography to delineate fractures in granite quarry mine

Myeong Jong Yi, Jung Ho Kim, Seong Jun Cho, Motoyuki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

To delineate the inhomogeneities including fractures and to estimate the freshness of rock, borehole radar and resistivity tomography surveys were conducted at a granite quarry mine in Korea. Borehole radar reflection images were obtained at five boreholes and we could get high resolution image of fractures. Spatial orientations of fractures, however, could not be attained because of omni-directional characteristic of antennas. Radar tomography method, a very useful method to estimate the freshness of rock, was also applied but we failed to get images of fractures because vertical fractures were dominant in this site. To get tomographic image of vertical fractures, we conducted the resistivity tomography over 8 sections. Although resistivity tomography method provides very low resolution image of the subsurface compared to radar method, we could get tomographic images of vertical fractures. Spatial orientations of fractures were easily obtained by joint interpretation of radar reflection and resistivity tomography images, and we could accurately define the fractures in 3-D manner.

Original languageEnglish
Title of host publicationProceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004
EditorsE. Slob, A. Yarovoy, J.B. Rhebergen
Pages213-216
Number of pages4
Publication statusPublished - 2004 Dec 1
EventProceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004 - Delft, Netherlands
Duration: 2004 Jun 212004 Jun 24

Publication series

NameProceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004
Volume1

Other

OtherProceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004
CountryNetherlands
CityDelft
Period04/6/2104/6/24

Keywords

  • Borehole radar reflection
  • Granite quarry
  • Resistivity tomography

ASJC Scopus subject areas

  • Engineering(all)

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