지질공학 (The Journal of Engineering Geology)

  • 제21권1호
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  • Pages.79-85
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  • 2011
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  • 1226-5268(pISSN)
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  • 2287-7169(eISSN)
대한지질공학회 (The Korean Society of Engineering Geology)
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강원도 탄산염지역 대수층의 수리전도도 특성

Characteristics of the Hydraulic Conductivity of Carbonate Aquifers in Gangwon Province

  • Park, Young-Yun (Research Institute for Earth Resources, Kangwon National University) ;
  • Lee, Jin-Yong (Department of Geology, Kangwon National University) ;
  • Lim, Hong-Gyun (Department of Geology, Kangwon National University) ;
  • Park, Yu-Chul (Department of Geophysics, Kangwon National University)
  • 투고 : 2011.03.08
  • 심사 : 2011.03.16
  • 발행 : 2011.03.31
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초록

이 연구는 영월과 정선 내 탄산염암지역 지하수의 수리전도도를 이용하여 탄산염암지역 지하수의 유동특성을 알아보기 위해 수행하였다. 이 연구를 위해 영월과 정선 내 탄산염암지역에서 개발된 46개 관정의 수리전도도 자료를 수집하였다. 이들 관정들은 주로 연구지역을 북동-남서 방향으로 가로지르는 골지천, 조양강 및 동강 주변으로 개발되었으며 이들의 수리전도도는 0.004-1.1 m/day의 범위를 보였다. 수리전도도는 관정의 심도가 깊어질수록 점차 줄어드는 경향(y=-0.003x-0.927, $r^2$=0.129)을 보였다. 연구지역은 수리전도도에 따라 A(< 0.1 m/day), B(0.1-1 m/day) 및 C(> 1 m/day) 구역으로 구분하였다. A, B 및 C 구역은 각각 연구지역의 87%(n = 40), 11 %(n = 5) 및 2%(n = 1)에 해당되었다. A 구역은 단열의 영향을 거의 받지 않았고 B 구역은 단열의 영향을 조금 받았으며 C 구역은 단열의 영향을 많이 받았다. 이 연구 결과는 탄산염지역 지하수의 유동이 주로 단열에 의해서 영향을 받고 있음을 보여주었다.

We investigated the flow properties of groundwater in areas of carbonate rocks at Yeongwol and Jeongseon, Gangwon Province, based on measurements of hydraulic conductivity. Existing hydraulic conductivity data were compiled from 46 wells in the study area. These wells were sunk close to Golji stream and the Joyang and Dong rivers, which flow through the study area. The hydraulic conductivities range from 0.004 to 1.1 m/day, and show a gradually decreasing trend with decreasing well depth (y=-0.003x - 0.927, $r^2$=0.129). The study area was classified into zone A (< 0.1 m/day), zone B (0.1-1.0 m/day), and zone C (> 1 m/day) according to hydraulic conductivity. Zones A, B, and C make up 87% (n = 40), 11 % (n = 5), and 2% (n = 2) of the surface of the study area, respectively. Among the three zones, zone A contains few fractures whereas zone C contains many fractures. These results indicate that groundwater flow in carbonate regions is strongly influenced by the fracture network.

키워드

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