도심 공공건물 저영향개발 계획 및 유출량 최적화 계획 : 서울 농업공화국(가칭)을 중심으로

Abstract

Purpose: The purpose of this research is to evaluate rainwater storage capacity of green roof system with management trains and to find optimized alternatives. Low Impact Development(LID) techniques has been introduced and researched in Korea mitigating urban flooding issues caused by rapid urbanization and climate change. The management train comprised of several LID components and its integrated capacity is required in real projects, so this research set up the optimization process and conducted it. Method: In this study, the Magok Community Farm was selected as the target site, and the appropriate size was optimized for efficient stormwater runoff treatment to each catchment area when applying multiple LID components combination through the train plan of LID techniques. Bio-retention Cell, Rain Barrel, Infiltration Trench, Vegetative Swale were selected among LID technology factors by reviewing rainfall data and soil conditions, and parameters of appropriate values were derived and applied for analysis through EPA SWMM model. Result: This paper showed that the appropriate size calculation of LID facilities is more effective in terms of efficient rainwater management. This study is expected to be used as a reference material for the future LID method linkage plan and calculation of an appropriate scale.