한국환경과학회지 제28권 제9호 (p.737-749)

|ORIGINAL ARTICLE|
국내 시설농업단지의 수리지질 특성을 고려한 인공함양 민감도 분석 : 수리전도도 및 주입정과 양수정의 이격거리

Sensitivity Analysis of Artificial Recharge in Consideration of Hydrogeologic Characteristics of Facility Agricultural Complex in Korea : Hydraulic Conductivity and Separation Distance from Injection Well to Pumping Well
키워드 :
Facility agricultural complex,Artificial recharge,HydroGeoSphere modeling,Sensitivity analysis,Hydraulic conductivity,Separation distance

목차

Abstract
1. 서 론
2. 연구 방법
3. 결과 및 고찰
   3.1. 관측정의 지하수위 강하량 분석
   3.2. 민감도 분석을 통한 지하수위의 변동 및 영향반경분석
4. 결 론
REFERENCE

초록

In this study, the sensitivity analysis of hydraulic conductivity and separation distance (distance between injection well and pumping well) was analyzed by establishing a conceptual model considering the hydrogeologic characteristics of facility agricultural complex in Korea. In the conceptual model, natural characteristics (topography and geology, precipitation, hydraulic conductivity, etc.) and artificial characteristics (separation distance from injection well to pumping well, injection rate and pumping rate, etc.) is entered, and sensitivity analysis was performed 12 scenarios using a combination of hydraulic conductivity (10-1 cm/sec, 10-2 cm/sec, 10-3 cm/sec, 10-4 cm/sec) and separation distance (10 m, 50 m, 100 m). Groundwater drawdown at the monitoring well was increased as the hydraulic conductivity decreased and the separation distance increased. From the regression analysis of groundwater drawdown as a hydraulic conductivity at the same separation distance, it was found that the groundwater level fluctuation of artificial recharge aquifer was dominantly influenced by hydraulic conductivity. In the condition that the hydraulic conductivity of artificial recharge aquifer was 10-2 cm/sec or more, the radius of influence of groundwater level was within 20 m, but In the condition that the hydraulic conductivity is 10-3 cm/sec or less, it is confirmed that the radius of influence of groundwater increases sharply as the separation distance increases.