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소규모유역의 수치모헝을 이응한 지하수 유동해석

Groundwater Flow Analysis using Numerical model in Small Basin

  • 최윤영 (도립경도개학 건설환경과)
  • 발행 : 2003.06.01

초록

The applied model for this study area is WINFLOW using mite element method, It is thought that the simulation result by WINFLOW model under the steady flow state reflects well the ground water distribution within the reliability level which shows the error range of 1.1% to 8.0% from the comparison between the computed values and the observed, and analyzed that the constant head distribution is shown along the east-west direction and gentle and stable head gradient along the north-south direction. Ground water of the study area shows stable movement from the south to the stream area, and the particle trace for each location shows relatively linear shape from the upstream to the pumping location while the radius of influence according to the pumping amount shows a significant difference at the down stream area from the pumping location. The simultaneous pumping from P and P1 shows more complicated appearance, not the increase of the radius of influence than pumping from a single well P or P1, and it is analyzed that the particle path takes nearly linear form. It is known that the flow direction of the ground water and the velocity of the flow affect on the magnitude of the radius of influence of the wells from the fact that the more decreasing pattern of the ground water head is observed at the side of the well and the down stream area than the upstream area when the ground water moves from south to north regarding the radius of influence according to the pumping amount. Satisfactory results in analyses of ground water movement are obtained through the significant reduction of the physical uncertainties in the flow system as well as the relatively convenient model application using WINFLOW model which is proposed in this study.

키워드

참고문헌

  1. Strack, O.D.L., 1989, Groundwater Mechanics, Prentice Hall, Englewood Cliffs, New Jersey, 6, 104-113.
  2. Hubbert, M.K., 1940, The Theory of Groundwater Motion, J. Geol., 48, 162-165.
  3. Toth, J., 1963, A Theoretical Analysis of Groundwater Flow in Small Drainage Basins, J. Geophy. Res., 8, 145-147.
  4. Freeze, R.A. and P.A. Witherspoon, 1966, Theoretical analysis of regional groundwater flow: Analytical and numerical solutions to the mathematical model, WRR, 2, 763-769.
  5. Natasimhan, T.N. and P.A. Witherspoon, 1976, An integrated finite difference method for analyzing fluid flow in porous media, WRR, 12, 83-101.
  6. Ueshita, K. and T. Sato, 1976, study on the Resonable Recover of Groundwater in the Nobi Plain, Proceeding of japan Society of civil Engineers, 287, 89-97.
  7. Wang, H.F. and M.P. Anderson, 1982, Introduction to Groundwater Modeling-Finite Difference and Finite Element methods, W.H. Freeman and Company, 21, 96-103.
  8. Gupta, S.K., C.R. Cole and G.F. Pinder, 1984, A finite element three dimensional groundwater model for a multiaquifer system, WRR, 20, 55-67.
  9. 김영기, 1976, 반야월층의 지하수 유동에 관한 연구, 공산지질학회지, 9(4), 38-48.
  10. 안종성, 1983, 동위원소를 이용한 한강유역내 지하수와 기표수의 연관성에 관한 연구, 한국수문학회지, 16(4), 66-69.
  11. 고병련, 1984, 제주도의 지하수 부존형태와 지하수위 변동에 관한 연구, 건국대학교 공학석사학위논문, 38-48pp.
  12. 김계남, 1990, 암반에서의 지하수 유동특성분석, 한국수자원학회지, 23(2), 31-34.
  13. 배상근, 1992, 대구지역의 지하수 유동계의 해석, 계명대학교 산업기술연구소 논문보고집, 15(2), 73-86.
  14. Morris, O.A. and A.I. Johnson, 1967, Summary of hydrologic and phisical propertie of rock and soil materials, as analyzed by the Hydrologic Laboratory of the U.S. Geological Survey., 8, 121-136.
  15. Hantush, M.S. and C.E. Jacob, 1955, Nonsteady radial flow in an infinite leaky aquifer, Trans. Amer. Geophys., Union, 36, 88-97.
  16. McDonald, M.G. and A.W. Harbaugh, 1988, A Modular Three-Dimensional Finite Difference Groundwater Flow Model, USGS Techniques of Water Resource Investigations, 6, 18-23.
  17. Rumbaugh, J.O., 1996, Two-Dimensional Groundwater Flow Model, Geraghty and Miller, Inc., Reston, Virginia, 20, 212-239.
  18. Bear, J., 1972, Dynamics of fluids in porous media, American Elservier Publishing Company, Inc., New York, 44, 47-52.
  19. 한국수자원공사, 1991-2001, 수문자료집, 31-88pp.