DOI QR코드

DOI QR Code

Strack의 단일 포텐셜 해석해를 이용한 해안지하수 개발가능량 평가

Assessment of Available Coastal Groundwater Resources Using Strack's Single-potential Analytical Solution

  • 최뢰 (동아대학교 공과대학 토목공학부) ;
  • 이창해 (대진대학교 공과대학 환경공학과) ;
  • 박남식 (동아대학교 공과대학 토목공학부)
  • 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)
  • 발행 : 2008.01.31

초록

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.

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.

키워드

참고문헌

  1. Bennett, G.D., Mundorff, M.J., and Hussain, S.A. (1968). 'Electric-analog studies of brine coning beneath freshwater wells in the Punjab Region West Pakistan.' U.S. Geol. Surv. Water-Supply Paper, 1608-J
  2. Cheng, A.H.D., Halhal, D., Naji, A., and Ouazar, D. (2000). 'Pumping optimization in saltwater intruded coastal aquifers', Water Resources Research, Vol. 36, No. 8, pp. 2155-2166 https://doi.org/10.1029/2000WR900149
  3. Kim, J.M. (1996). A fully coupled model for saturated unsaturated fluid flow in deformable porous and fractured media. Ph.D. Dissertation, Pennsylvania State University, University Park, Pennsylvania, pp. 201
  4. Park, C.-H., Aral, M.M., (2003). 'Multi-objective optimization of pumping rates and well placement in coastal aquifers', Journal of Hydrology, v. 290, No. 1-2, pp. 80-99 https://doi.org/10.1016/j.jhydrol.2003.11.025
  5. Park, N.S., Bhopanam, N.K., Hong, S.H., Han, S.Y. (2004). 'Sand-tank experimental studies on saltwater intrusion phenomena.' SWIM18, Cartagena, Spain
  6. Park, N.S. and Hong, S.H. (2006). 'Optimization Model for Groundwater Development in Coastal Aquifers.' Advances in Geosciences, Vol. 4, pp. 159-166 https://doi.org/10.1142/9789812707208_0020
  7. Reilly, T.E. and Goodman, A.S., (1987). 'Analysis of saltwater upconing beneath a pumping well.' Journal of Hydrology, 89, pp. 169-204 https://doi.org/10.1016/0022-1694(87)90179-X
  8. Strack, O.D.L. (1976). 'A single potential solution for regional interface problems in coastal aquifers.' Water Resources Res., 12, 1165-1174 https://doi.org/10.1029/WR012i006p01165
  9. Voss, C.I. (1984). A finite element simulation model for saturated unsaturated, fluid density develop- ment groundwater flow with energy transport or chemically reactive single species solute transport. U.S. Geological Survey, Water Resources Investigations Report # 84 4369

피인용 문헌

  1. Experimental Study to Parameterize Salt-Wedge Formations in Coastal Aquifer vol.42, pp.11, 2009, https://doi.org/10.3741/JKWRA.2009.42.11.1005
  2. Stump height effects on sprouting of mountain maple, paper birch and pin cherry — 10 year results vol.73, pp.5, 1997, https://doi.org/10.5558/tfc73590-5