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NTIS 바로가기Journal of Korea Water Resources Association = 한국수자원학회논문집, v.48 no.9, 2015년, pp.729 - 741
박현진 (홍익대학교 대학원 토목공학과) , 양정석 (국민대학교 공과대학 건설시스템공학부) , 한재문 (홍익대학교 대학원 토목공학과) , 김동균 (홍익대학교 공과대학 토목공학과)
This study examined the applicability of MBLRP (Modified Bartlett-Lewis Rectangular Pulse) rainfall generation model for an urban flood simulation which is a type of Poisson cluster rainfall generation model. This study constructed XP-SWMM model for Namgajwa area of Hongjecheon basin, which is a two...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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서울을 비롯한 우리나라의 주요 도시들이 홍수에 취약한 이유는 무엇인가? | 서울을 비롯한 우리나라의 주요 도시들은 인구와 자산이 특정 지역에 집중되어 있는 사회적 특성과 여름철 장마, 태풍, 국지성 집중호우 등이 자주 발생하는 기후적 특성으로 인하여 홍수에 취약하다. 특히, 우리나라의 경우 제한된 자원으로 최대의 효율을 얻어야 하는 1960-80년대 도시 개발 당시의 제한으로 인해 우수관거 설계 시 침수에 대한 안전율이 충분히 확보되지 않았고, 이러한 상황이 단기간에 걸친 불투수 포장 지대의 급격한 증가와 맞물리면서 내수침수로 인한 피해가 컸다(Choi, 2003; Choi et al. | |
통계적으로 의미 있는 결과를 도출하려면 최소 100년 이상의 강우자료가 필요하다는 문제점을 대체하기 위한 방법은? | 이러한 몬테카를로 모의를 위해서는 오랜 기간에 걸쳐 관측된 강우자료가 가장 이상적인 입력 자료로 활용될 수 있겠지만, 통계적으로 의미 있는 결과를 도출하기 위하여 최소한 100년 치 이상의 시뮬레이션이 통상적으로 필요하다는 점을 고려했을 때, 이러한 길이를 초과하는 관측 강우자료를 확보하는 것은 불가능에 가깝다. 따라서 관측강우자료를 대체하기 위하여 관측강우와 통계적 특성이 유사한 가상의 강우를 생성하는 추계학적 강우생성모형(Burton et al., 2008; Kim et al., 2013a)이 활용된다. | |
서울의 2004년~2013년까지 홍수에 의한 피해액은 어떠하였는가? | , 2011; Park and Shin, 2014; Song et al., 2014)의 경우라 할지라도 2004년에서 2013년까지 홍수에 의한 피해액은 581억 원에 달하며, 이는 동 기간 서울에서 발생한 피해액의 90%에 달한다. 따라서 강우로부터 시작하여 지표침수에 이르는 내수 침수 메커니즘의 각 요소들을 명확히 이해하여 침수구간을 정밀하게 예측하고 이를 바탕으로 도시홍수에 대한 대책을 수립하는 것은 도시 홍수로 인한 인적, 물적, 정신적 피해를 저감시키는데 있어 반드시 필요하다. |
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