지구물리와물리탐사 (Geophysics and Geophysical Exploration)
- 제6권2호
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- Pages.57-63
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- 2003
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- 1229-1064(pISSN)
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- 2384-051X(eISSN)
경암 내 소규모 공동 탐지를 위한 시추공간 탄성파탐사 기법의 적용성 연구
A Study on the Detection of Small Cavity Located in the Hard Rock by Crosswell Seismic Survey
- Ko, Kwang-Beom (Imaging Technology Research Laboratory) ;
- Lee, Doo-Sung (Dept. of Information System Engineering)
- 발행 : 2003.05.01
초록
경암 내에 존재하는 소규모 공동 탐지를 목적으로 시추공 간 탄성파자료에 대한 주시 토모그래피 및 Kirchhoff 구조보정 기법의 적용 가능성을 고찰하였다. 주시 토모그래피의 경우 수치모델링을 통한 검토 결과, 소규모 공동(
For the dectection of small cavity in the hard rock, we investigated the feasibility of crosswell travel-time tomography and Kirchhoff migration technique. In travel-time tomography, first arrival anomaly caused by small cavity was investigated by numerical modeling based on the knowledge of actual field information. First arrival delay was very small (<0.125 msec) and detectable receiver offset range was limited to 4m with respect to
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