Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Development of a Real Time Control Model for Urban Drainage Systems

도시 내배수시스템 실시간 운영모형의 개발

  • Jun, Hwandon (Department of Civil Engineering, Hanbat National University) ;
  • Lee, Yang Jae (Department of Digital City, Seoul Development Institute) ;
  • Lee, Jung Ho (Department of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Kim, Joong Hoon (Department of Civil, Environmental and Architectural Engineering, Korea University)
  • 전환돈 (한밭대학교 토목공학과) ;
  • 이양재 (서울시정개발연구원 디지털도시부) ;
  • 이정호 (고려대학교 건축.사회환경공학과) ;
  • 김중훈 (고려대학교 건축.사회환경공학과)
  • Received : 2007.06.26
  • Accepted : 2007.09.18
  • Published : 2007.09.30
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Abstract

To develop an efficient pump operating rule for a retard basin, it is necessary to estimate inflow to the retard basin accurately which is affected by the backwater effect at the outlet of the conduit. The magnitude of the backwater effect is dependent on the water depth of a retard basin; however, the depth is determined by the amount of inflow and outflow. Thus, a real time simulation system that is able to simulate urban runoff and the pump operation with the consideration of the backwater effect is required to estimate the actual inflow to a retard basin. With this system, the efficient pump operating rule can be developed to diminish the possible flood damage on urban areas. In this study, a realtime simulation system is developed using the SWMM 5.0 DLL and Visual Basic 6.0 equipped with EXCEL to estimate inflow considering the backwater effect. The realtime simulation can be done by updating realtime input data such as minutely observed rainfall and the depth of a retard basin. Using those updated input data, the model estimates actual inflow, the amount of outflow discharged by pumps and gates, the depth of each junction, and flow rate at a sewer pipe on realtime basis. The developed model was applied to the Joonggok retard basin and demonstrated that it can be used to design a sewer system and to estimate actual inflow through the inlet sewer to reduce the inundation risk. As results, we find that the model can contribute to establish better operating practices for the pumps and the flood drainage system.

Keywords

Acknowledgement

Supported by : 한국건설교통기술평가원

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