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J. Korean Soc. Hazard Mitig. > Volume 18(7); 2018 > Article
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Journal of the Korean Society of Hazard Mitigation 2018;18(7):119-127.
DOI: https://doi.org/10.9798/KOSHAM.2018.18.7.119    Published online December 31, 2018.
건물군 인벤토리가 고려된 다차원법을 활용한 홍수피해액 산정
강동호1, 이석호2, 김길호3, 김병식4
1정회원, 강원대학교 방재전문대학원 도시환경방재전공 박사과정
2강원대학교 방재전문대학원 도시환경방재전공 연구교수
3한국건설기술연구원 국토보전연구본부 신진연구원⋅공학박사
4정회원, 강원대학교 방재전문대학원 도시환경방재전공 부교수
Estimation of Flood Damage Using Building Group Inventory and Multi-Dimensional Flood Damage Analysis
Dong Ho Kang1, Suk Ho Lee2, Gil Ho Kim3, Byung Sik Kim4
1Member, Ph.D Candidate, Department of Urban environment & Disaster management, Kangwon National University
2Ph.D, Research professor, Department of Urban environment & Disaster management, Kangwon National University
3Ph.D, Researcher, Korea Institute of Civil Engineering and Building Technology
4Member, Professor, Department of Urban environment & Disaster management, Kangwon National University
Corresponding author:  Byung Sik Kim, Tel: +82-33-570-6819, Fax: +82-33-570-6458, 
Email: hydrokbs@kangwon.ac.kr
Received: 5 November 2018   • Revised: 6 November 2018   • Accepted: 15 November 2018
Abstract
As a result of recent climate change, flood damage originating from local floods and typhoons has become more frequent, costing many lives and damaging property. Especially in city centers, a large amount of damage can occur due to inundation caused by river flooding. In this study, flood damage area was calculated using the Flo-2D flood inundation model, and the estimated flood damage was calculated using multi-dimensional flood damage analysis. In general, the flood damage rate can be calculated using the area ratio according to the land use in the affected administrative district. However, in this study the flood damage rate was calculated using the flood damage rate proposed in the multi-dimensional flood damage analysis. The estimated flood damage as a function of return period were estimated using the estimated flood damage rate. The flood damage rate estimated using the area ratio was estimated to be at least 51% with a maximum 75% lower than the flood damage rate estimated using the building group, and the total damage was underestimated when the area ratio was used. Therefore, it is necessary to estimate damages using building inventories presented in the multidimensional law for residential and industrial areas.
Key Words: Flo-2D, Multi-Dimensional Flood Damage Analysis, Flood Damage Rate, Flood Damage
요지
최근 기후변화로 인해 국지성 집중호우 및 태풍으로 제내지 침수로 인한 홍수피해가 빈번하게 발생하고 있으며, 많은 인명피해와 재산피해가 발생하고 있다. 특히 도심지에서 하천의 범람으로 인한 침수로 많은 피해액이 발생하게 된다. 따라서 본 연구에서는 도심을 흐르는 도시하천인 원주천유역을 대상으로 홍수범람모형인 Flo-2D모형을 이용하여 홍수피해면적을 산정하였으며 다차원법을 이용한 피해액 산정방법을 통하여 빈도별 예상홍수피해액을 산정하였다. 일반적으로 행정구역상 토지이용에 따른 면적비를 이용하여 침수편입률을 산정하나 본 연구에서는 다차원법에서 제시하는 침수편입률 산정방법을 이용하여 산정하였다. 산정 결과 면적비를 이용한 편입률이 건물군을 이용한 편입률 보다 최소 51%, 최대 75% 낮게 산정되었으며 면적비를 이용하였을 때 과소 산정되는 것으로 나타났다. 따라서 다차원법을 이용한 피해액 분석시 주거, 산업의 경우 다차원법에 서 제시되고 있는 건물군을 이용하여 피해액을 산정하는 것이 필요하다고 판단된다.
핵심용어: Flo-2D, 다차원법, 침수편입률, 홍수피해액


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