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군정의 주입량의 정밀 제어를 위한 유량조절밸브의 개도 및 최소 펌프 소요양정

Valve Openings and Minimum Pump Head for Precise Operation of Multiple Groundwater Injection Wells

  • 박남식 (동아대학교 공과대학 토목공학과) ;
  • 장치웅 (동아대학교 토목공학과) ;
  • 조광우 (한국환경정책평가연구원)
  • 투고 : 2015.09.16
  • 심사 : 2015.10.01
  • 발행 : 2015.10.31

초록

해수침투 방지나 대수층 인공함양을 위하여 다수의 관정을 통하여 대수층으로 물을 주입하는 공법이 있다. 이러한 공법의 경우 소기의 목적을 달성하기 위해서는 관정의 위치와 주입량, 그리고 결과되는 관정의 지하수위 등이 별도의 지하수 모델링을 통하여 결정된다. 주입수는 통상 관망을 통하여 관정으로 공급되는 데 이 때 관망에는 관정별 주입량을 조절하기 위한 밸브가 설치된다. 본 연구에서는 다수의 주입 관정이 연결된 관망에서 사전에 산정된 주입량 분포를 준수하기 위한 밸브 개도와 주입관망 가동에 필요한 펌프 최소 소요양정 산정방안을 제시하였다. 본 연구결과는 주입군정 운영의 정밀도를 향상시키는 데 기여할 수 있다.

Freshwater may be injected into aquifers to combat sea water intrusion in groundwater or to store water for later retrieval. For these cases to achieve the desired goal groundwater modeling is commonly used to determine locations and rates of injection wells. When these wells are connected to a pipe network, a flow control valve is installed for each well to regulate the injection rate. When a valve opening is modified, pressure changes in the entire pipe network and thereby changes flow rates in other wells. Therefore, desired valve openings must be determined for all injection wells. The pipe flow analysis allows estimation of the minimum pump power in addition to valve openings. Methods are developed to identify valve openings for multiple wells and the minimum pump power. The methodology developed in this work can contribute to precise operation of multiple injection wells.

키워드

참고문헌

  1. Alnahhal, S., Afifi, S., Qahman, K., Dentoni, M., and Lecca, G. (2010). A simulation/optimization approach to manage groundwater resources in the Gaza aquifer (Palestine), XVIII International Conference on Water Resources, Barcelona.
  2. Asano, T., and Cotruvo, J.A. (2004). "Groundwater recharge with reclaimed municipal wastewater: health and regulatory considerations." Water Research, Vol. 38, Issue 8, pp. 1941-1951. https://doi.org/10.1016/j.watres.2004.01.023
  3. Bear, J. and Dagan, G. (1964). Moving interface in coastal aquifers, Proc. A.S.C.E. Vol. 90 No. 4, pp. 193-215.
  4. Bray, B.S., and Yeh, W.W.-G. (2008). "Improving seawater barrier operation with simulation optimization in southern California." Journal of Water Resources Planning and Management, Vol. 134, No. 2, pp. 171-180. https://doi.org/10.1061/(ASCE)0733-9496(2008)134:2(171)
  5. Dettoraki, M.D., Dokou, Z., Varouchakis, E.A., and Karatzas, G.P. (2012). Optimal pumping scenarios for the estimation of the saltwater intrusion front in the coastal aquifer of Tympaki, Crete-Greece, EGU General Assembly, April, 2012 in Vienna, Austria., p.3178.
  6. Finney, B., Samsuhadi A., and Willis, R. (1992). "Quasi-3-dimensional optimization model of Jakarta Basin." Journal of Irrigation and Drainage Engineering, Vol. 118, No. 1, pp. 18-31.
  7. Javadi, A.A., Abd-Elhamid, H.F., and Farmani, R. (2011). A simulation-optimization model to control seawater intrusion in coastal aquifers using abstraction/recharge wells, International Journal for Numerical and Analytical Methods in Geomechanics, Published online
  8. Johnson, T. (2007). "Battling seawater intrusion in the central & west coast basins." Water Replenishment District Technical Bullletin, Vol. 13.
  9. Masciopinto, C., and Carrieri, C. (2002). "Assessment of water quality after 10 years of reclaimed water injection: the Nardo fractured aquifer (Southern Italy)." Ground Water Monitoring Remediation, Vol. 22, pp. 88-97.
  10. Ortuno, F., Molinero, J., Custodio, E., Juarez, I., Garrido, T., and Fraile, J. (2010). Seawater intrusion barrier in the deltaic Llobregat aquifer (Barcelona, Spain): performance and pilot phase results, 21st Salt Water Intrusion Meeting, University of Azores, Portugal.
  11. Pajeeraporn, W. (2010). Study of seawater intrusion and controlling methods using physical model simulations, Master Thesis, Suranaree University of Technology
  12. Pye, V.I., and Patrick, R. (1983). "Ground water contamination in the United States." Science, Vol. 221, No. 4612, pp. 713-718. https://doi.org/10.1126/science.6879171
  13. Reichard, E.G., and Johnson, T.A. (2005). "Assessment of regional management strategies for controlling seawater intrusion." Journal of Water Resources Planning and Management, Vol. 131, No. 4, pp. 280-291. https://doi.org/10.1061/(ASCE)0733-9496(2005)131:4(280)
  14. Tsanis, I.K., and Song, L.F. (2001). "Remediation of sea water intrusion: A case study." Groundwater Monitoring and Remediation, Vol. 21, No. 6, pp. 152-161. https://doi.org/10.1111/j.1745-6592.2001.tb00752.x
  15. Van Dam, J.C. (1999). Chapter 4: Exploitation, restoration and management, Seawater Intrusion in Coastal Aquifers-Concepts, Methods and Practices, by Bear, J., et al. Eds., Kluwer Academic, pp. 73-125.