지질공학 (The Journal of Engineering Geology)

  • 제15권1호
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  • Pages.1-8
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  • 2005
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  • 1226-5268(pISSN)
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  • 2287-7169(eISSN)
대한지질공학회 (The Korean Society of Engineering Geology)
권호 표지

대수층의 수리특성 연구를 위한 시추공 전기전도도 측정기법의 현장 시험 적용

Test Application of Electrical Conductivity Measurement in Borehole for Determining Aquifer Properties

  • 발행 : 2005.03.01
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초록

전기전도도 측정방법에 의한 수리전도도 측정 기법 개발의 일환으로, 모형 시추공을 이용한 실내 실험에 이은 원위치 현장 적용 시험을 실시하였다. 현장 적용은 사전 현장 적용실험을 거쳐 춘천시 봉명리 강원대학교 산림학습원 구역내에 있는 BM-2와 BM-3의 두 시추공에서 이루어졌다. 두 시추공을 양수정과 측정공으로 서로 번갈아 사용하며 염수 주입과 종료를 기준으로 다수의 시계열 전기전도도 자료를 획득하였다. 이들 시계열 전기전도도 분포곡선의 분석으로부터 공별, 심도별 수리 특성 정보를 얻을 수 있었으며, 원위치 현장 투수시험 방법으로서의 가능성이 확인되었다.

As a trial to find an efficient technique for determining hydraulic conductivity, a test application of electrical conductivity measurement technique was made using a signal conditioning data acquisition system in borehole. The experiment was made in two test boreholes BM-2 and BM-3 which are located in the Experiment forests of Kangwon National University in Bongmyongri, Chunchon. We obtained series of electric conductivity variation curves after the beginning and completion of saline water injection using these two bore-holes as the pumping well and the observing well alternatively, The analysis of time series electrical conductivity data suggests kinds of valuable information about aquifer properties by holes and depths, and we could confirm the potential of this method as an efficient tool for in situ aquifer test.

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참고문헌

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