방사형 집수정의 적정 설계를 위한 조사 물량 제안 (A Proposal for the Number of Investigation Wells for Optimal Radial Collector Well Design)

서지정보

· 발행기관 : 한국지하수토양환경학회
· 수록지 정보 : 지하수토양환경 / 25권 / 2호 / 1 ~ 8페이지
· 저자명 : 최명락, 김규범

초록

In general, the estimation of optimum yield for the radial collector well is determined by the empirical equation ornumerical modeling, in which hydraulic conductivity of the aquifer is a main influence factor. Hydraulic conductivities of164 soil samples collected from boreholes and horizontal wells (average length: about 50 m) installed during wellconstruction in the Anseong stream were drawn in two-dimensional map by the Kriging method and utilized in this study.
Hydraulic conductivity analyses by Representative Elementary Count (REC) indicated the average hydraulic conductivityis similar to that of the pumping test when the number of samples reaches about 1,000, which correspond to 1,000 m2.
Pumping test was also conducted at 1 pumping well and 13 observation wells to estimate hydraulic conductivities at eachobservation well. REC analysis indicated that the average value of hydraulic conductivity calculated from at least fourobservation wells is valid as a representative value. The overall result suggested that multiple observation wells or multiplepumping-observation well systems that are located within the range of horizontal wells should be utilized to properlyestimate the representative hydraulic conductivity values and the yield of a radial collector well.

영어초록

In general, the estimation of optimum yield for the radial collector well is determined by the empirical equation ornumerical modeling, in which hydraulic conductivity of the aquifer is a main influence factor. Hydraulic conductivities of164 soil samples collected from boreholes and horizontal wells (average length: about 50 m) installed during wellconstruction in the Anseong stream were drawn in two-dimensional map by the Kriging method and utilized in this study.
Hydraulic conductivity analyses by Representative Elementary Count (REC) indicated the average hydraulic conductivityis similar to that of the pumping test when the number of samples reaches about 1,000, which correspond to 1,000 m2.
Pumping test was also conducted at 1 pumping well and 13 observation wells to estimate hydraulic conductivities at eachobservation well. REC analysis indicated that the average value of hydraulic conductivity calculated from at least fourobservation wells is valid as a representative value. The overall result suggested that multiple observation wells or multiplepumping-observation well systems that are located within the range of horizontal wells should be utilized to properlyestimate the representative hydraulic conductivity values and the yield of a radial collector well.

참고자료

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