An Analysis of Runoff Reduction Effect of Infiltration Facilities in Urban Area

도시유역에서 침투시설의 우수유출저감효과 분석

  • 이재준 (국립금오공과대학교 토목환경공학부) ;
  • 김호년 (국립금오공과대학교 대학원 토목공학과) ;
  • 곽창재 (국립금오공과대학교 대학원 토목공학과) ;
  • 이상원 (국립금오공과대학교 대학원 토목공학과)
  • Published : 2007.02.22

Abstract

One of the structural measures for the peak flow reduction is infiltration facilities. There are many types in infiltration facilities - infiltration basin, trench, bed, porous pavement, percolated subdrain, dry well. In this study runoff reduction effect of infiltration trench is analyzed by WinSLAMM. Runoff reduction effect is investigated by each design rainfall and temporal pattern of rainfall particularly. The biggest reduction is shown in Yen and Chow's temporal pattern of design rainfall and the smallest reduction is shown in Huff's first quartile pattern. Runoff reduction rate is presented about 6 to 14 percentage, and the larger return period, the smaller runoff reduction rate.

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