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도시 물 순환 건전성을 위한 유수지와 침투기반 저류지의 복합설계기법

An Hybrid Approach for Designing Detention and Infiltration-based Retentions to Promote Sound Urban Hydrologic Cycle

  • 최치현 (부경대학교 환경공학과) ;
  • 최대규 (부경대학교 환경공학과) ;
  • 이재관 (국립환경과학원 낙동강물환경연구소) ;
  • 김상단 (부경대학교 환경공학과)
  • Choi, Chi-Hyun (Department of Environmental Engineering, Pukyong National University) ;
  • Choi, Dae-Gyu (Department of Environmental Engineering, Pukyong National University) ;
  • Lee, Jae-Kwan (Nakdong River Water Environmental Research Center, National Institute of Environmental Research) ;
  • Kim, Sang-Dan (Department of Environmental Engineering, Pukyong National University)
  • 투고 : 2010.03.19
  • 심사 : 2011.01.11
  • 발행 : 2011.01.31

초록

본 연구는 도시환경개선계획의 일환으로서 강우유출수 제어설비의 크기 결정과 관련된 복합 설계기법을 제안하고 있다. 제안된 복합설계기법의 목적은 도시 개발이전의 수문순환상태를 복원시키는 것에 있다. 먼저, 연속적인 강우기록으로부터 개개의 강우사상을 분리하기 위해 IETD를 결정한다. 그 다음에 NRCS-CN 방법을 적용하여 모든 강우사상에 대한 직접유출량과 침투량을 산정한다. 직접유출량과 침투량의 장기간 통계치는 개발이전, 개발이후, 개발이후 유수지 설계, 그리고 개발이후 제안된 복합설계의 경우에 대하여 각각 분석된다. 개발이전의 직접유출량과 침투량을 재현하기 위해서 유전자 알고리즘을 적용하여 유수지 및 침투기반 저류지의 크기가 산정된다. 제안된 복합설계기법은 자연 상태의 직접유출량과 침투량의 통계치를 재현하는데 매우 효과적인 것이 보여진다.

This article proposes a hybrid approach involved in determining the size of stormwater control facilities as part of a very large scale urban retrofit project. The objective of the proposed hybrid approach is to restore the pre-development hydrologic cycle. Firstly, an appropriate IETD is determined to isolate single storm events from the continuous rainfall record. Then, using the NRCS-CN method, direct runoff and infiltration volume are computed for every storm events. Long-term statistics of direct runoff and infiltration volume are analyzed in each case of pre-development, post development, post development with detention only, and post-development with the proposed hybrid approach. In order to preserve long-term statistics of direct runoff and infiltration volume in the case of pre-development, the size of detention and infiltration-based retention are estimated using the genetic algorithm. The result shows that the proposed hybrid approach is very useful for restoring statistics of natural direct runoff and infiltration volume.

키워드

참고문헌

  1. Kim, S. and Han, S., "Urban Stormwater Capture Curve Using Three-Parameter Mixed Exponential Probability Density Function and NRCS Runoff Curve Number Method," Water Environ. Res., 82, 43-50(2010).
  2. Guo, J. C. Y. and Urbonas. R. B., "Maximized detention volume determined by runoff capture ratio," J. Water Resour. Planning and Manage., 122, 33-39(1996). https://doi.org/10.1061/(ASCE)0733-9496(1996)122:1(33)
  3. Hammer, T., "Stream and Channel Enlargement due to Urbanization," Water Res., 8, 130-1540(1972).
  4. MacRae, C. R., "Experience from Morphological Research on Canadian Streams: Is Control of the Two-Year Frequency Runoff Event the Best Basis for Stream Channel Protection. Effects of Watershed Development and Management on Aquatic Ecosystems," ASCE Engineering Foundation Conference, Snowbird, UT, 144-162(1996).
  5. Booth, D. and Jackson, R., "Urbanization of Aquatic Systems: Degradation Thresholds, Stormwater Detection, and the Limits of Mitigation," J. Am. Water Res. Assoc., 33(5), 1077-1090(1997). https://doi.org/10.1111/j.1752-1688.1997.tb04126.x
  6. Maine Department of Environment protection, Stormwater management for Maine: best Management practices, Maine Dept. of Environmental Protection Nonpoint Source Training and Resource Center(1995).
  7. 최지용, "유역관리 효율화를 위한 불투수면 지표 개발과 적용," 한국환경정책평가연구원(2004).
  8. 김이형, "21세기 친환경 건설을 위한 low impact development (LID) 기술," 한국수자원학회지, 41(6), 47-57(2008).
  9. Prince George's County, Low-impact development hydrologic analysis, Prince George's County, MD Department of Environmental Resources(1999a).
  10. Prince George's County, Low-impact development design strategies: an integrated design apporach, Prince George's County, MD Department of Environmental Resources(1999b).
  11. 전지홍, 최동혁, 김태동, "지속가능한 도시개발을 위한 LID 평가모델(LIDMOD)개발과 수질오염총량제에 대한 적용성 평가," 한국물환경학회지, 25(1), 230-238(2009).
  12. Nix, S. J., Urban Stormwater Modeling and Simulation, Lewis Publishers, Boca Raton, FL(1994).
  13. Holland, J. H., Adaptation in Natural and Artificial Systems, Univ. of Michgan Press, Ann Arbor, Mich(1975).
  14. Goldberg, D. E., Genetic Algorithms in Search, Optimization, and Machine Learning, Addison-Wesley, New York, N.Y(1989).
  15. Gen, M. and R., Cheng., Genetic Algorithms and Engineering Design, John Wiley & Sons, New York, N.Y(1997).

피인용 문헌

  1. Study for Management of Non-point Source in Sooyeong River Watershed Using SWMM vol.14, pp.2, 2014, https://doi.org/10.9798/KOSHAM.2014.14.2.327
  2. Design of Water Quality Capture Volume for Infiltration Trench vol.15, pp.4, 2015, https://doi.org/10.9798/KOSHAM.2015.15.4.317