Using SWMM as a Tool for Flood Impact Assessment

• 영문명: Using SWMM as a Tool for Flood Impact Assessment
• 발행기관: 한국방재학회
• 저자명: Ly, Sidoeun Shin, Hyunseok Kang, Narae Kim, Hung Soo
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2014년, 145~145쪽, 전체 1쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2014.02.19

영문 초록

Climate change is not the only issue yet there are the combinations of many existing factors. Urbanization is one of them and is considering the major criteria. Due to the Rapid Urbanization, land use of the existing watershed is becoming impervious layer and even drainage network system is more complicated. Existing system might not be able to handle the amount of water during the storm events thus, hydrologic impact assessment is necessary for a planned development area in designing detention storage for urban drainage systems to minimize the effect of urbanization. It is advisable to reassess the existing structure to handle and to prevent the threat of flood in the future. For such assessment, single or two hydrologic models can be paired for pre- and post- development conditions. Typical pairings are the use of synthetic hydrograph methods for both conditions or synthetic hydrograph for pre-development and urban hydrology model for post-development condition. This study is aiming to assess the flood impact and suggest the proper technique for future flood prevention. To accomplish, the SWMM was adopted to development areas in Korea. The comparison of results can be done to show the new approach can resolve the irrationalities that can occur with the combination of two different models such as smaller peak flow and longer time to peak for post-development conditions. It is thought that the proposed method will improves the accountability of the flood impact assessment on future development areas.

키워드

Flood Impact Assessment Hydrologic model post-development condition SWMM Urbanization effect