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Original Article

Analysis of Debris Flow Affected Area Using Hyper KANAKO Model

Hyper KANAKO 모형을 이용한 토석류 피해지 분석

Bae Dong Kang1
,
Kye Won Jun2*
,
Young Hwan Kim3
강 배동1
,
전 계원2*
,
김 영환3
1Master Course, Graduate School of Disaster Prevention, Kangwon National University
2Professor, Graduate School of Disaster Prevention, Kangwon National University
3Ph.D Course, Graduate School of Disaster Prevention, Kangwon National University
1강원대학교 방재전문대학원 석사과정
2강원대학교 방재전문대학원 교수
3강원대학교 방재전문대학원 박사과정
*Corresponding Author
31 March 2021. pp. 51-59
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Abstract

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.

Keywords
Debris flow
Hyper KANAKO
Numerical simulation
Flow depth

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.

키워드
토석류
Hyper KANAKO
수치모의
유동심
References
1
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Korean References Translated from the English

1
김기중 (2021). Hyper Kanako 모형을 이용한 토석류 피해지역 해석에 관한 연구. 석사학위논문. 강원대학교.
2
김남균 (2011). FLO-2D 모형을 이용한 토석류의 이동과 확산에 관한 연구. 석사학위논문. 강원대학교.
3
김승은, 백중철, 김경석 (2013). FLO-2D 모형을 이용한 우면산 토석류 유동 수치모의. 대한토목학회논문집. 33(3): 965-974. 10.12652/Ksce.2013.33.3.965
4
김영환 (2017). 토석류 수치모형을 이용한 사방댐 위치 변화에 따른 토사유출해석. 석사학위논문. 강원대학교.
5
임영협 (2017). KANAKO 2D를 이용한 토석류 수치모의 및 사방시설에의 적용 방안 연구. 박사학위논문. 강원대학교.
6
장창덕 윤영호, 전계원 (2011). Kanako-1D를 이용한 토석류재해지역의 수치모의. Crisisonomy. 7(6): 205-215.
7
탁원준 (2015). RAMMS를 이용한 토석류 이동과 확산범위 산정에 관한 연구. 석사학위논문. 강원대학교.
Information
  • Publisher :Korean Society of Disaster and Security
  • Publisher(Ko) :한국방재안전학회
  • Journal Title :Journal of Korean Society of Disaster and Security
  • Journal Title(Ko) :한국방재안전학회 논문집
  • Volume : 14
  • No :1
  • Pages :51-59
  • Received Date : 2021-01-25
  • Revised Date : 2021-03-12
  • Accepted Date : 2021-03-15
  • DOI :https://doi.org/10.21729/ksds.2021.14.1.51
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