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Baalousha 해석해를 이용한 하천 주변 지하수 양수로 인한 하천수 감소 분석

Evaluation of stream depletion due to nearby groundwater pumping using Baalousha analytical solution

  • 이정우 (한국건설기술연구원 수자원.하천연구소) ;
  • 김남원 (한국건설기술연구원 수자원.하천연구소) ;
  • 정일문 (한국건설기술연구원 수자원.하천연구소) ;
  • 홍성훈 (한강홍수통제소 수자원정보센터)
  • Lee, Jeongwoo (Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Nam Won (Korea Institute of Civil Engineering and Building Technology) ;
  • Chung, Il-Moon (Korea Institute of Civil Engineering and Building Technology) ;
  • Hong, Sung Hun (Han River Flood Control Office)
  • 투고 : 2017.10.17
  • 심사 : 2017.11.23
  • 발행 : 2018.02.28

초록

본 연구에서는 하폭, 하상수리전도도 등의 하천수리특성을 고려할 수 있는 Baalousha (2012)의 해석해를 이용하여 안성천 상류구간 인근에 위치한 관정 17개에 대해 지하수 양수로 인한 하천수 감소량을 산정하고 그 특성을 고찰하였다. 해석해 적용을 위해서 양수시험과 시피지시험을 통해 측정한 대수층과 하상의 수리특성값을 이용하였다. 양수기간 5년 동안 양수량 대비 하천수 감소량은 약 0.23에서 0.89로 관정 위치별로 차이가 크게 나타났으며, 하천고갈인자(Stream Depletion Factor, SDF) 값이 1,000일보다 큰 경우 0.4 미만으로 양수의 영향이 작은 것으로 분석되었다. Baalousha (2012) 해석해 적용 결과를 미소하폭에 대한 Hunt (1999) 해석해 적용 결과와 비교한 결과 연구대상 지역은 상대적으로 간단한 Hunt (1999) 해석해로 지하수 양수 영향을 파악하는데 충분한 것으로 분석되었다. 또한 투수량계수, 저류계수, 하상수리전도도, 하폭, 하천-관정 이격거리, 하폭 등의 수리특성치 조합에 따른 총 3,000가지 조건에 대해 각각의 해석해로 5년 평균 하천수 감소비를 구하여 비교한 결과 하천-관정 이격거리가 하폭 보다 길어야 두 해석해의 차이가 작아 하폭의 영향이 감소하는 것으로 분석되었다.

This study was to evaluate the stream depletion due to groundwater pumping from 17 wells near the Anseongcheon upper stream using the Baalousha's analytical solution (2012) which directly considers stream width and streambed hydraulic conductivity. The input hydraulic values of aquifer and streambed were obtained from the pumping tests and seepage experiments. The estimated streamflow depletion rates divided by pumping rate (dimensionless stream depletion) showed a range from 0.23 to 0.89 for 5 year pumping. In particular, the results revealed that the groundwater pumping has insignificant effects on streamflow when the stream depletion factor (SDF) is higher than 1,000 with values of dimensionless stream depletion lower than 0.4. A more simple Hunt's solution (1999) also applied to the same wells, and the results showed that the difference between the dimensionless stream depletions calculated by using both solutions could be negligible. From the comparison of the Baalousha's solution (2012) with the Hunt's solution (1999) with total 3,000 cases of simulations with combinations of various aquifer and stream properties, the stream-well distance should be more longer than stream width for reducing the discrepancy between both solutions.

키워드

참고문헌

  1. Baalousha, H. M. (2012). "Drawdown and stream depletion induced by a nearby pumping well." Journal of Hydrology, Vol. 466-467, pp. 47-59. https://doi.org/10.1016/j.jhydrol.2012.08.010
  2. Butler Jr., J. J., Zlotnik, V. A., and Tsou, M.-S. (2001). "Drawdown and stream depletion produced by pumping in the vicinity of a partially penetrating stream." Ground Water, Vol. 39, No. 5, pp. 651-659. https://doi.org/10.1111/j.1745-6584.2001.tb02354.x
  3. Environment Canterbury (2000). Guidelines for the assessment of groundwater abstraction effects on stream flow.
  4. Han River Flood Control Office, Ministry of Land Infrastructure and Transport (2014). Study on the estimation of effects of nearby groundwater pumping on streamflow.
  5. Hantush, M. S. (1965). "Wells near streams with semipervious beds." Journal of Geophysical Research, Vol. 70, No. 12, pp. 2829-2838. https://doi.org/10.1029/JZ070i012p02829
  6. Hunt, B. (1999). "Unsteady stream depletion from ground water pumping." Ground Water, Vol. 37, No. 1, pp. 98-102. https://doi.org/10.1111/j.1745-6584.1999.tb00962.x
  7. Hunt, B. (2008). "Stream depletion for streams and aquifers with finite widths." Journal of Hydrologic Engineering, Vol. 13, No. 2, pp. 80-89. https://doi.org/10.1061/(ASCE)1084-0699(2008)13:2(80)
  8. Kim, G. B. (2010). "Application of analytical solution for stream depletion due to groundwater pumping in Gapcheon watershed, South Korea." Hydrological Processes, Vol. 24, No. 24, pp. 3535-3546. https://doi.org/10.1002/hyp.7777
  9. Kim, N. W., Lee, J., Chung, I. M., and Sung, G. Y. (2012b). "Analysis of effects of groundwater abstraction on streamflow for Sinduncheon watershed." Journal of Korea Water Resources Association, KWRA, Vol. 45, No.12, pp. 1259-1273. https://doi.org/10.3741/JKWRA.2012.45.12.1259
  10. Kim, N. W., Lee, J., Chung, I. M., and Kim, C. H. (2012a). "Change of groundwater-streamflow interaction according to groundwater abstraction in a green house land." Journal of Korea Water Resources Association, Vol. 45, No. 10, pp. 1051-1067. https://doi.org/10.3741/JKWRA.2012.45.10.1051
  11. Kim, N. W., Lee, J., Lee, J. E., and Won, Y. S. (2012c). "Development of relational formula between groundwater pumping rate and streamflow depletion." Journal of Korea Water Resources Association, KWRA, Vol. 45, No. 12, pp. 1243-1258. https://doi.org/10.3741/JKWRA.2012.45.12.1243
  12. Kim, N. W., Yoo, S. Y., Chung, I. M., and Lee, J. (2009). "Analysis on the spatial-temporal variation of surface-groundwter interaction on the watershed basis." Journal of Korea Water Resources Association, KWRA, Vol. 42, No. 1, pp. 21-31. https://doi.org/10.3741/JKWRA.2009.42.1.21
  13. Lee, J., Chun, S. G., Yi, M. J., Kim, N. W., Chung, I. M., and Lee, M. H. (2015b). "Measurements of streambed hydraulic conductivity using drive-point piezometers and seepage meters in the upper reaches of Anseong stream." The Journal of Engineering Geology, Vol. 25, No. 3 , pp. 1-8. https://doi.org/10.9720/kseg.2015.1.1
  14. Lee, J., Chung, I.-M., Kim, N. W., and Hong, S. H. (2016a). "Evaluation of stream depletion from groundwater pumping in shallow aquifer using the Hunt's analytical solution." Journal of Korea Water Resources Association, KWRA, Vol. 49, No. 11, pp. 923-930. https://doi.org/10.3741/JKWRA.2016.49.11.923
  15. Lee, J., Chung, I. M., Kim, N. W., and Lee, M. H. (2016b). "Evaluation of effects of groundwater pumping near stream using analytical model." Journal of the Korea Society of Civil Engineering, Vol. 36, No. 4B, pp. 617-625. https://doi.org/10.12652/Ksce.2016.36.4.0617
  16. Lee, J., Chung, I. M., Kim, N. W., and Lee, J. E. (2015a). "Effects of irrigation reservoirs and groundwater withdrawals on streamflow for the Anseongcheon upper watershed." Journal of the Korea Society of Civil Engineering, Vol. 35, No. 4, pp. 835-844. https://doi.org/10.12652/Ksce.2015.35.4.0835
  17. Lee, J., Kim, N. W., and Chung, I. M. (2013). "Assessment of streamflow depletion due to groundwater pumping from a well." Journal of Korea Water Resources Association, KWRA, Vol. 46, No.11, pp. 1079-1088. https://doi.org/10.3741/JKWRA.2013.46.11.1079
  18. Nyholm, T., Rasmussen, K. R., and Christensen, S. (2003). "Estimation of stream flow depletion and uncertainty from discharge measurements in a small alluvial stream." Journal of Hydrology, Vol. 274, No. 1-4, pp. 129-144. https://doi.org/10.1016/S0022-1694(02)00420-1
  19. Sophocleous, M., Koussis, A., Martin, J. L., and Perkins, S. P. (1995). "Evaluation of simplified stream-aquifer depletion models for water rights administration." Ground Water, Vol. 33, No. 4, pp. 579-588. https://doi.org/10.1111/j.1745-6584.1995.tb00313.x
  20. Theis, C. V. (1941). "The effect of a well on the flow of a nearby stream." Transactions of the American Geophysical Union, Vol. 22, No. 3, pp. 734-738. https://doi.org/10.1029/TR022i003p00734
  21. Winter, T. C., Harvey, J. W., Franke, O. L., and Alley, W. M. (1998). Ground water and surface water - a single resource. U.S. Geological Survey, Circular 1139.
  22. Zume, J., and Tarhule, A. (2008). "Simulating the impacts of groundwater pumping on stream-aquifer dynamics in semiarid northwestern Oklahoma, USA." Hydrogeology Journal, Vol. 16, No. 4, pp. 797-810. https://doi.org/10.1007/s10040-007-0268-8