Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Simulation of compound flooding using TUFLOW's 1D-2D coupling features

TUFLOW의 1-2차원 연계 기능을 활용한 복합 침수 모의

  • Hwang, Donggyu (Department of Civil Engineering, Graduate School, Pukyong National University) ;
  • Kang, Teauk (Industry-University Cooperation Foundation, Kyungsung University) ;
  • Jin, Yongkyu (Rural Research Institute, Korea Rural Community Corporation) ;
  • Lee, Sangho (Department of Civil Engineering, Pukyong National University)
  • 황동규 (부경대학교 대학원 토목공학과) ;
  • 강태욱 (경성대학교 산학협력단) ;
  • 진영규 (한국농어촌공사 농어촌연구원) ;
  • 이상호 (부경대학교 공과대학 토목공학전공)
  • Received : 2024.06.14
  • Accepted : 2024.06.21
  • Published : 2024.07.31
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Abstract

It is necessary to apply a rational urban flood simulation method to analyze the causes of frequent urban flooding and to develop appropriate countermeasures. Previous studies in Korea have performed flood simulations by inputting the results of manhole overflow from sewer systems and river overflow into two-dimensional flood flow simulation models. It, however, is reasonable to simulate flooding from river and manhole overflows in a complex manner. In this study, we used the 1D-2D coupling functionality of the TUFLOW module, which is a part of XP-SWMM, to simulate the compound flooding of rivers and urban areas. That method was applied to the lower basin of the Naengcheon River in Pohang City, Gyeongsangbuk-do, where both inland flooding and river overflow coincided due to Typhoon Hinnamnor on September 5 and 6, 2022, to verify its applicability.

빈발하고 있는 도시 지역 침수 피해의 원인을 분석하고 대책을 수립하기 위하여 합리적인 도시 침수 모의 방법을 적용할 필요가 있다. 기존의 국내 연구들은 하수 관거의 맨홀 범람과 하천의 범람 결과를 2차원 범람 유동 모의 모형에 입력하여 침수 모의를 수행하였다. 그렇지만 하천과 맨홀 범람의 침수 모의는 결합하여 분석하는 것이 합리적이다. 이 연구에서는 XP-SWMM을 구성하는 TUFLOW 모듈의 1-2차원 연계 기능을 사용하여 하천과 제내지의 복합 침수 모의를 수행하였다. 해당 방법을 2022년 9월 5일과 6일 태풍 힌남노로 인한 내수 침수와 하천 범람이 동시에 발생한 경상북도 포항시 냉천 하류 유역에 적용하여 적절성을 검증하였다.

Keywords

Acknowledgement

이 논문은 국립부경대학교 자율창의학술연구비(2024년)에 의하여 연구되었으며, 이에 심심한 감사를 표합니다.

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