한국방재안전학회논문집 (Journal of Korean Society of Disaster and Security)

  • 제14권1호
  • /
  • Pages.51-59
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  • 2021
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  • 2466-1147(pISSN)
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  • 2508-285X(eISSN)
한국방재안전학회 (Korean Society of Disaster & Security)
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Hyper KANAKO 모형을 이용한 토석류 피해지 분석

Analysis of Debris Flow Affected Area Using Hyper KANAKO Model

  • 강배동 (강원대학교 방재전문대학원) ;
  • 전계원 (강원대학교 방재전문대학원) ;
  • 김영환 (강원대학교 방재전문대학원)
  • Kang, Bae Dong (Graduate School of Disaster Prevention, Kangwon National University) ;
  • Jun, Kye Won (Graduate School of Disaster Prevention, Kangwon National University) ;
  • Kim, Young Hwan (Graduate School of Disaster Prevention, Kangwon National University)
  • 투고 : 2021.01.25
  • 심사 : 2021.03.15
  • 발행 : 2021.03.31
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초록

국토의 64%가 산지로 이루어진 우리나라에서는 하절기에 집중되어 있는 태풍과 국지성 호우로 산사태와 토석류와 같은 산지 재해 피해가 빈번하게 발생하고 있다. 연구대상 지역은 2019년 10월 태풍 미탁에 의해 토석류 피해가 발생했던 지역으로 하류부에 위치한 주택이 전파되는 등 시설물에 많은 피해가 발생했다. 본 연구에서는 침식과 퇴적 작용을 고려할 수 있는 Hyper KANAKO 모형을 이용하여 토석류 피해가 발생한 지역에 대해 수치모의를 실시하였으며, 실제 피해 면적과 모형의 분석 결과를 비교하여 모형의 적용성을 검토하였다. 수치모의 결과 대상 지역의 토석류 피해 면적은 53,875 m2로 나타났으며, 최대 유동심은 2.4 m, 평균 유동심은 1.7 m로 분석되었다.

In Korea, where 64% of the soil is mountainous, typhoons and local rains concentrated in the summer season are frequent in mountainous disasters such as landslides and debris flow. The area of study was the area where the damage to the debris flow was caused by typhoon Mitag in October 2019, and all the houses located in the downstream area were damaged. In this study, numerical simulations were conducted on the area where the damage of earth and stone flow occurred using Hyper KANAKO model that can consider erosion and sedimentation, and the applicability of the model was examined by comparing the actual damage area and the analysis results of the model. As a result of the numerical simulation, the damage area of the debris flow in the target area was 53,875 m2, the maximum flow depth was 2.4 m, and the average flow depth was 1.7 m.

키워드

과제정보

This paper work was financially supported by Ministry of the Interior and Safety as Human Resource Development Project in Disaster Management.

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