홍수피해 저감을 위한 Blue-Green Roof의 강우유출량 저감 능력 평가에 관한 연구 (A Study on Evaluation of the Ability to Reduce Stormwater Runoff of Blue-Green Roof for Flood Damage Reduction)

서지정보

· 발행기관 : 한국물환경학회
· 수록지 정보 : 한국물환경학회지 / 39권 / 1호 / 30 ~ 37페이지
· 저자명 : 이승원, 서지훈, 차성민

초록

This study aimed to evaluate the ability to reduce flood damage caused by abnormal rainfall events due to climate change by utilizing a blue-green roof (BGF), a type of rooftop greening technology. For two buildings with the same roof area, a BGF was installed in the experimental group, a general roof was configured in the control group, and rainfall runoff was compared. A total of 10 rainfall events were tested and analyzed by classifying them into three rainfall classes (less than 10 mm, less than 100 mm, and more than 100 mm). There w as a r eduction of 1 00% in t he c ase of 10 mm o r less of r ainfall, 84. 7% i n the case of 100 mm or less, and 39.8% in the case of 100 mm or more. Although this study showed that a BGF was effective in reducing rainfall runoff, additional experiments and analyses of various factors affecting rainfall runoff reduction are needed to generalize the results of the study. This research methodology may be used to develop a method for evaluating the resilience of a BGF to flood damage due to climate change.

영어초록

This study aimed to evaluate the ability to reduce flood damage caused by abnormal rainfall events due to climate change by utilizing a blue-green roof (BGF), a type of rooftop greening technology. For two buildings with the same roof area, a BGF was installed in the experimental group, a general roof was configured in the control group, and rainfall runoff was compared. A total of 10 rainfall events were tested and analyzed by classifying them into three rainfall classes (less than 10 mm, less than 100 mm, and more than 100 mm). There w as a r eduction of 1 00% in t he c ase of 10 mm o r less of r ainfall, 84. 7% i n the case of 100 mm or less, and 39.8% in the case of 100 mm or more. Although this study showed that a BGF was effective in reducing rainfall runoff, additional experiments and analyses of various factors affecting rainfall runoff reduction are needed to generalize the results of the study. This research methodology may be used to develop a method for evaluating the resilience of a BGF to flood damage due to climate change.

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