[논문]효과적인 도시 홍수 저감을 위한 그린-그레이 인프라 위치 설정에 관한 연구

배채영; 이동근

doi:10.13087/kosert.2022.25.6.65

효과적인 도시 홍수 저감을 위한 그린-그레이 인프라 위치 설정에 관한 연구
A Study on Optimized Placement of Green-Gray Infrastructure for Effective Flood Mitigation 원문보기

環境復元綠化 = Journal of the Korean Society of Environmental Restoration Technology, v.25 no.6, 2022년, pp.65 - 75

배채영 (수원시정연구원 도시공간연구실) , 이동근 (서울대학교 조경.지역시스템공학부)

Abstract ▼ AI-Helper

Urban flood management(UFM) strategy ought to consider the connections and interactions between existing and new infrastructures to manage stormwater and improve the capacity to treat water. It is also important to demonstrate strategies that can be implemented to reduce the flow at flooding sources and minimize flood risk at critical locations. Although the general theory of spatial impact is popular, modeling guidelines that can provide information for implementation in real-world plans are still lacking. Under such background, this study conducted a modeling research based on an actual target site to confirm the hypothesis that it is appropriate to install green infrastructure(GI) in the source area and to take structural protection measures in the impact area, as summarized in previous studies. The results of the study proved the hypothesis, but the results were different from the hypothesis depending on which hydrological performance indicators were targeted. This study will contribute to demonstrating the effectiveness of strategies that can be implemented to reduce the flow at flooding sources and minimize the risk of flooding in critical locations in terms of spatial planning and regeneration.

주제어

표/그림 (11)

그림 Figure 1. The location and elevation of the study area
그림 Figure 3. Research framework of the study
그림 Figure 2. Return period by duration time of 2010 flood event
표 Table 1. Summary of GI characteristics
표 Table 2. Overview of scenarios modeled in this study
그림 Figure 3. Source and impact area derivation for green-gray infrastructure placement
그림 Figure 4. Flood hydrograph in 2010 flood event for S1~S4 and baseline
표 Table 3. Summary of green-gray infrastructure implementation
표 Table 4. Overview of results by scenarios
그림 Figure 5. Flood and runoff reduction rate by scenarios
그림 Figure 6. Spatial analysis framework for FRM(left panel) and land cover map(MOE, South Korea, 2019)(right panel)

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