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김계남,김재한,안종성,Kim, Gye-Nam,Kim, Jae-Han,An, Jong-Seong 한국수자원학회 1990 물과 미래(한국수자원학회지) Vol.23 No.2
본 연구에서는 암반에 분포된 열극이 미치는 영향을 고려하여 줌으로써 암반에서의 지하수 유동특성을 보다 더 정확하게 분석하였다. 이를 위하여 GFFP-WT 모형을 사용하여 암반에서의 지하수 유동 특성을 분석해 본 결과, 암반의 특수계수가 작은 화강반암 지층에서는 등수두선이 수렴하므로 지하수 유동로의 방향이 변화되며, 암반내에 분포한 열극은 유동지역의 수두분포값을 변화시키므로 지하수의 유동시간에 영향을 미치는 것으로 나타났다. For a detailed understanding of groundwater flow in rock mass, the effect of major fractures, topography and coefficent of permeability has been evaluated. The numerical model of GFFP-WT was used for the purpose. The results indicate that in the granite porphyry layer with a small permeability, the direction of flow path changes due to convergence of equipotential lines, while the travel time changes due to the presence of fractured in rock masses.
김계남,오원진,원휘준,정충헌 한국원자력학회 2004 Nuclear Engineering and Technology Vol.36 No.4
The ageing effects of radionuclides in radioactive soil on remediation using the electrokineticmethod were analyzed. Comparative experiments were conducted for the reactive soil around aTRIGA research?reactor contaminated with 137Cs and 60Co for 15 years and the non-reactivesoil that was intentionally contaminated with Cs+ and Co2+ for 3 days. It was observed thatbecause of an aging effect on 137Cs, the efficiency of removing it decreased. H2SO4 used as anadditive to increase the removal efficiency showed a higher removal capability than otherchemicals for both 137Cs and 60Co. The efficiency of removing radionuclides from theradioactive soil in the column was proportional to the capability of the added chemical toextract radionuclides. It took 10 days to achieve a 54% removal of 137Cs and a 97% removal of60Co from the soil. The volume of the soil wastewater discharged from the soil column by theelectrokinetic method was 20% below that for soil washing.