한국지하수토양환경학회지:지하수토양환경 (Journal of Soil and Groundwater Environment)

  • 제15권1호
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  • Pages.39-49
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  • 2010
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  • 1598-6438(pISSN)
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  • 2287-8831(eISSN)
한국지하수토양환경학회 (Korean Society of Soil and Groundwater Environment)
권호 표지

충적층 양수정에서 우물개량을 통한 우물효율의 개선

Improvement of Well Efficiency through Well Development in a Pumping Well

  • 김규범 (한국수자원공사 K-water연구원 지질지하수연구팀) ;
  • 김병우 (한국수자원공사 K-water연구원 지질지하수연구팀) ;
  • 김성윤 (한국수자원공사 K-water연구원 지질지하수연구팀)
  • Kim, Gyoo-Bum (K-water Institute, Korea Water Resources Corporation) ;
  • Kim, Byung-Woo (K-water Institute, Korea Water Resources Corporation) ;
  • Kim, Sung-Yun (K-water Institute, Korea Water Resources Corporation)
  • 투고 : 2009.10.20
  • 심사 : 2009.11.23
  • 발행 : 2010.02.28
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초록

Drilling at unconsolidated layer can make the aquifer disturbed and reduce a productivity of groundwater well. Surge block and air surging were applied to a pumping well located in Jeungsan-ri, Changnyung-gun, to improve a well efficiency by removing clogging and fine-grained slime. Two experimental log-linear equations, $y_1=-0.1769\;ln(x_1)+0.4960$ and $y_2=-84.3358\;ln(x_2)+512.8162$, were proposed in this site, in which $x_1$ and $x_2$ are the number of surging event, $y_1$ is the amount of slime, and $y_2$ is a recovery time of groundwater level after air surging. Well loss exponent (P) decreased after surging, from 3.422 to 1.439, and the groundwater inflow from aquifer happened in all directions around a well with gradually increasing the homogeneity in a local aquifer's hydraulic property. It was revealed that long-term well development should be done in the pumping well which is located in unconsolidated sediments to increase a well productivity.

키워드

참고문헌

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