Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
권호 표지
DOI QR코드

DOI QR Code

Improving the water yield capabilities using reservoir emergency storage and water supply adjustment standard

합천댐의 비상용량 및 용수공급 조정기준을 활용한 용수공급능력 제고

  • 안재홍 (아주대학교 건설교통공학과) ;
  • 이영목 (한국수자원공사) ;
  • 이재응 (아주대학교 건설시스템공학과)
  • Received : 2016.10.13
  • Accepted : 2016.11.21
  • Published : 2016.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

One of the most important purpose of multi-purpose reservoir is storing a large amount of water for utilization in a dry season. However, multi-purpose reservoirs that were constructed according to the limited hydrologic information available at the time of construction may encounter problems such as decreased water inflow due to climate change and an inability to cope with a water shortage. To solve these problems, in 2015, the Ministry of Land, Infrastructure and Transport suggested a revised water supply standard in case of water shortage for reservoirs. However, the revised standard has not been sufficiently discussed to determine its effectiveness. In addition, multi-purpose reservoirs in South Korea have secured and stored water for emergencies, but there is currently no way to utilize the stored water. Determining how to utilize the stored water effectively may be a useful method for preparing drought. Therefore, this article discusses the revised water supply standard as it relates to a water shortage in reservoirs and a method of utilizing the water stored for emergencies in multi-purpose reservoirs. The options for utilizing the water storage were evaluated using a water shortage safety degree index, and the results showed that the options may slightly and limitedly increase the water supply capacity. However, the evaluation also showed that a complex application of two options may overcome the exisiting problem and to supply water more effectively.

다목적댐을 건설하는 중요한 기능 중 하나는 대량의 수자원을 저수하여 건기에 적절하게 활용하는 것이다. 그러나 건설 당시 제한된 수문정보를 이용하여 건설된 다목적댐은 기후변화로 인한 유입량 감소와 같은 문제에 직면할 수 있어 물 부족이 발생할 경우 대처하는데 어려움이 있다. 국토교통부에서는 이러한 문제를 해결하기 위해 2015년 댐 용수부족 대비 용수공급 조정기준을 제시하였으나 아직 충분한 검토가 진행되지 않아 이에 대한 결과를 논하기엔 어려움이 있다. 또한 국내의 다목적댐은 비상용량을 확보하고 있으나 이를 활용할 수 있는 기준이 없다. 하지만 이를 효과적으로 사용한다면 가뭄에 대비할 수 있는 방안이 될 수 있을 것으로 판단된다. 따라서 본 연구에서는 댐 용수부족 대비 용수공급 조정기준과 다목적댐의 비상용량을 활용하는 방안을 검토하였다. 이수안전도 지표를 이용하여 대안들을 평가한 결과 대안별 용수공급능력이 다소 증가하지만 한계가 나타났다. 그러나 두 가지 대안을 복합적으로 활용할 경우 기존에 나타나던 문제를 보완하여 더욱 효과적인 용수공급을 할 수 있는 것으로 나타났다.

Keywords

References

  1. Cha, S. H., and Park, K. B. (2004). "A study on estimate of evaluation indices of water supply capacity for multipurpose dam." Journal of the Environmental Sciences, Vol. 13, No. 3, pp. 197-204. https://doi.org/10.5322/JES.2004.13.3.197
  2. Choi, S. J., Lee, D. R., and Moon, J. W. (2014). "Comparison of water supply reliability by dam operation methods." Journal of Korean Water Resources Association, KWRA, Vol. 47, No. 6, pp. 523-536. https://doi.org/10.3741/JKWRA.2014.47.6.523
  3. Hydrologic Engineering Center (2007). HEC-ResSim : Reservoir System Simulation User's Manual. U.S. Army Crops of Engineers.
  4. Hashimoto, T., Stcdinger, J. R., and Loucks, D. P. (1982). "Reliability, Resiliency, and vulnerability criteria for water resource system performance evaluation." Water Resources Research, Vol. 18, No. 1, pp. 14-20. https://doi.org/10.1029/WR018i001p00014
  5. Jin, Y. K. (2016). Reservoir Operation Applying a Discrete Hedging Rule with Ensemble Stream flow Prediction to Cope with Droughts. pukyong National University, Busan, Korea.
  6. K-water (2013). Practical Manual of Dam Operation.
  7. Kjeldsen, T. R., and Rosbjerg, D. (2004). "Choice of reliability, resilience and vulnerability estimator for risk assessments of water resources system." Hydrologic Sciences, Vol. 49, Issue. 5.
  8. Kwon, T. Y. (2014). Improvement of Reservoir Yield Evaluation Index for Multipurpose Reservoir. Ajou University, Suwon, Korea.
  9. Lee, D. H., Choi, C. W., Yu, M. S., and Yi, J. E. (2012). "Reevaluation of multi-purpose reservoir yield." Journal of the Korean Society of Civil Engineers, KSCE, Vol. 45, No. 4, pp. 361-371.
  10. Lee, G. M., and Yi, J. E. (2012). "Analysis of emergency water supply effects of multipurpose dams using water shortage index." Journal of Korean Water Resources Association, KWRA, Vol. 45, No. 11, pp. 1143-1156. https://doi.org/10.3741/JKWRA.2012.45.11.1143
  11. Ministry of Land, Infrastructure and Transport (2015). Dam water shortage contrast water supply adjustment standard.
  12. Ministry of Land, Transport and Maritime Affairs (2011). Dam design standard.
  13. Moon, J. W., and Lee, D. R. (2009). "Emergency water supply effect on improvement of water supply capacity in multi-purpose dam." Korean Society of Civil Engineers, KSCE 2009 Convention, pp. 3386-3389.
  14. Moy, W. S., Cohon, J. L., and ReVelle, C. (1986). "A programming model for analysis of the reliability, resilience and vulnerability of a water supply reservoir." Water Resources Research, Vol. 135, No. 6, pp. 414-425.
  15. Rittima, A., and Vudhivanich, V. (2003). "Storage-yield-resiliencereliability relationship of mun bon reservoir." Proceedings of 41st Kasetssart University Annual Conference, Bangkok, pp. 55-64.
  16. Srivastava, D. K., and Awchi, T. A. (2009). "Storage-yield evaluation and operation of mula reservoir." Journal of Water Resources and Management, Vol. 135, No. 6, pp. 414-425.
  17. Yoon, S. K., Kim, G. H., Yeo, K. D., and Shim, M. P. (2008). "A study on estimating emergency water supply benefits by dam." Korea Water Resources Association, KWRA 2008 Convention, pp. 1540-1544.

Cited by

  1. Improving Reservoir Operation Criteria to Stabilize Water Supplies in a Multipurpose Dam: Focused on Nakdong River Basin in Korea vol.10, pp.9, 2018, https://doi.org/10.3390/w10091236
  2. Development and Effective Analysis of Termination Criteria at Each Drought Response Stage in a Multipurpose Dam vol.18, pp.5, 2018, https://doi.org/10.9798/KOSHAM.2018.18.5.23