한국방재안전학회논문집 (Journal of Korean Society of Disaster and Security)

  • 제16권1호
  • /
  • Pages.13-22
  • /
  • 2023
  • /
  • 2466-1147(pISSN)
  • /
  • 2508-285X(eISSN)
한국방재안전학회 (Korean Society of Disaster & Security)
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2차원 모델을 이용한 도시침수지역에서의 LID기법 적용효과 분석

An Analysis of the Application Effect of LID Technology in Urban Inundation Using Two-Dimensional Model

  • 정민진 (강원대학교 방재전문대학원 도시환경재난관리전공) ;
  • 김주호 (강원대학교 방재전문대학원 도시환경재난관리전공) ;
  • 장창덕 ((주)씨앤디) ;
  • 전계원 (강원대학교 방재전문대학원 도시환경재난관리전공)
  • Minjin Jung (Graduate School of Disaster Prevention, Kangwon National University) ;
  • Juho Kim (Graduate School of Disaster Prevention, Kangwon National University) ;
  • Changdeok Jang (CND Co.) ;
  • Kyewon Jun (Graduate School of Disaster Prevention, Kangwon National University)
  • 투고 : 2023.03.08
  • 심사 : 2023.03.27
  • 발행 : 2023.03.31
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초록

2022년 8월 수도권에 기록적인 폭우로 기후변화 대비의 중요성이 증대됨에 따라 선제적 홍수대비의 중요성이 커지고 있다. 저류지나 침사지 등으로 홍수조절에 대응하고 있으나 대형화하고 있는 재난에 대비하기 위하여 정부는 저영향개발 사전협의제도 등을 통해 우수유출저감대책을 마련하고 있다. 본 연구에서는 도심지 하천인 도림천유역의 신림2배수구역에 대해 이차원 모형인 XP-SWMM을 활용하여 Low Impact Development(LID) 기법인 투수성 포장을 적용하였을 때의 침수심을 모의하였다. 또한 기왕 일최대강우에 대한 강우유출 저감효과 분석 및 적용성을 검토하였으며, 도시지역 침수저감 방법으로 효과가 있는 것으로 판단하였다. 저감효과가 과대평가된 한계가 있으나, 구조적 침수대책이 수립된 후에 일부 침수가 발생하는 작은 규모의 침수지역에 대한 대책으로 저영향개발기법이 유의미한 대책이 될 수 있을 것으로 생각된다.

The importance of preemptive flood preparation is growing as the importance of preparing for climate change increases due to record heavy rains in the Seoul metropolitan area in August 2022. Although it is responding to flood control through reservoirs and sediment sites, the government is preparing excellent spill reduction measures through a preliminary consultation system for Low Impact Development (LID). In this study, the depth of flooding was simulated when LID technologies were applied to the Sillim 2-drain region in Dorimcheon Stream basin, an urban stream, using XP-SWMM, a two-dimensional model. In addition, the analysis and applicability of the effect of reducing rainfall runoff for the largest rainfall in a day were reviewed, and it was judged to be effective as a method of reducing flooding in urban areas. Although there is a limitation in which the reduction effect is overestimated, it is thought that the LID technologies can be a significant countermeasure as a countermeasure for small-scale flooded areas where some flooding occurs after structural flooding measures are established.

키워드

과제정보

This research was support by a (2022-MOIS63-002) of Cooperative Research Method and Safety Management Technology in National Disaster funded by Ministry of Interior and Safety (MOIS, Korea).

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