Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Assessment of Available Coastal Groundwater Resources Using Strack's Single-potential Analytical Solution

Strack의 단일 포텐셜 해석해를 이용한 해안지하수 개발가능량 평가

  • Cui, Lei (School of Civil Engineering, Dong-A University) ;
  • Lee, Chang-Hae (Dept. of Environmental Engrg., Daejin University) ;
  • Park, Nam-Sik (School of Civil Engineering, Dong-A University)
  • 최뢰 (동아대학교 공과대학 토목공학부) ;
  • 이창해 (대진대학교 공과대학 환경공학과) ;
  • 박남식 (동아대학교 공과대학 토목공학부)
  • Published : 2008.01.31
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Abstract

Groundwater development in coastal areas induces saltwater intrusion. In many cases amount of groundwater resources available for development is limited by a pre-specified limit of additional saltwater intrusion. In this paper a simple equation is developed to assess available groundwater resources which depends on the constraint of acceptable additional saltwater intrusion. Strack#s single-potential analytical solution is used to derive the equation. Available groundwater increases as more additional intrusion is allowed. However, critical points limit both the maximum pumping rate and the allowed saltwater intrusion limit. The equation is presented in the form of design curves from which the maximum pumping rate can be read off quickly. The equation and the design curves are suitable for preliminary estimation of available groundwater resources in coastal areas.

해안 지역의 관정에서 지하수를 개발하면 해수가 침투하며 많은 경우 대상 지역의 지하수 개발가능량은 허용될 수 있는 추가 해수침투 거리로 제한된다. 본 연구에서는 주어진 허용 추가 해수침투 거리를 위배하지 않는 해안 지역의 지하수 개발가능량을 평가할 수 있는 수식을 개발하였다. 개발가능량 산정을 위한 수식의 유도에는 Strack의 단일 포텐셜 해석해가 이용되었다. 개발가능량은 추가 허용 해수침투 거리를 늘림에 따라 증가하지만 critical point로 인하여 최대값이 제한된다. 개발가능량 산정식은 설계곡선의 형태로도 제시되었다. 유도된 식 또는 설계곡선을 이용하면 기본계획 단계의 지하수 개발가능량을 쉽게 평가할 수 있다.

Keywords

References

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