농업용 저수지 증고에 따른 홍수조절효과 분석
Analysis of Flood Control Effects of Heightening of Agricultural Reservoir Dam
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초록
Annual average precipitation of Korea is 1,277 mm and around 2/3 of annual precipitation and 74 % of available water resourcesoccurred during monsoon period. In recent years, many agricultural reservoirs have been heightened to increase flood control capacity,reduce flooding damage at downstream areas, and provide sustainable environmental flow during drought period. Thus in this study,the flood control effects of heightening of reservoir banks were simulated with HEC-ResSim and HEC-RAS models. These modeswere applied to Bonghak reservoir and it was found that flood control effects were 3～4.5 % with 7 -m heightening. Also, withproper operation (1 m lower of full water level) of reservoir right before the monsoon period, flooding at downstream could beprevented even with design storm of 80 -year recurrence interval. As shown in this study, heightening of agricultural reservoir providespositive effects in flood control and flood damage reduction.
Abstract
Annual average precipitation of Korea is 1,277 mm and around 2/3 of annual precipitation and 74 % of available water resourcesoccurred during monsoon period. In recent years, many agricultural reservoirs have been heightened to increase flood control capacity,reduce flooding damage at downstream areas, and provide sustainable environmental flow during drought period. Thus in this study,the flood control effects of heightening of reservoir banks were simulated with HEC-ResSim and HEC-RAS models. These modeswere applied to Bonghak reservoir and it was found that flood control effects were 3～4.5 % with 7 -m heightening. Also, withproper operation (1 m lower of full water level) of reservoir right before the monsoon period, flooding at downstream could beprevented even with design storm of 80 -year recurrence interval. As shown in this study, heightening of agricultural reservoir providespositive effects in flood control and flood damage reduction.
참고문헌 (21)
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