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

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトルProceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004
編集者E. Slob, A. Yarovoy, J.B. Rhebergen
ページ213-216
ページ数4
出版ステータスPublished - 2004 12 1
イベントProceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004 - Delft, Netherlands
継続期間: 2004 6 212004 6 24

出版物シリーズ

名前Proceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004
1

Other

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

ASJC Scopus subject areas

  • 工学(全般)

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