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J. Korean Soc. Hazard Mitig. > Volume 19(7); 2019 > Article
풍수해방재
Journal of the Korean Society of Hazard Mitigation 2019;19(7):463-470.
DOI: https://doi.org/10.9798/KOSHAM.2019.19.7.463    Published online December 31, 2019.
연안도시 지역의 방재성능목표 설정 및 개선방안 고찰
최경민1, 이정호2, 함대헌3, 박윤경4, 송양호5
1정회원, 국립한밭대학교 건설환경공학과 석사과정
2정회원, 국립한밭대학교 건설환경공학과 교수
3정회원, 서울과학기술대학교 건설기술연구소 선임연구원
4정회원, 한국건설기술연구원 국토보전연구본부 도시물순환연구센터 박사후연구원
5정회원, 국립한밭대학교 건설환경공학과 연구교수
An Analytical Study of the Problems and a Plan for Improving of Disaster Prevention Performance in Coastal Cities
Gyungmin Choi1, Jungho Lee2, Daeheon Ham3, Yoonkyung Park4, Yang Ho Song5
1Member, Master Course Student, Department of Civil & Environmental Engineering, Hanbat National University
2Member, Professor, Department of Civil & Environmental Engineering, Hanbat National University
3Member, Senior Researcher, Institute of Construction Technology, Seoul National University of Science and Technology
4Member, Postdoctoral Fellow, Department of Land, Water & Environment Research Urban Water Cycle Research Center, Korea Institute of Civil Engineering and Building Technology (KICT)
5Member, Research Professor, Department of Civil & Environmental Engineering, Hanbat National University
Corresponding author:  Yang Ho Song,
Email: syho@daum.net
Received: 22 October 2019   • Revised: 23 October 2019   • Accepted: 1 November 2019
Abstract
The phenomenon and impact of abnormal weather caused by climate change is not limited domestically, and the frequency and magnitude of natural disasters are increasing. In Korea, heavy rainfall has occurred, and sea level rise is accelerating. This falls under domestic urban disasters, which cause severe damage due to multiple floods in the coastal cities. In this study, the risk of disaster in the coastal cities was examined using XP-SWMM. In order to tackle the risk of flooding due to sea level rise, we examined whether the performance targets for the prevention of disasters were appropriate. Performance targets for the prevention of disasters and various scenarios of sea level rise were applied to the urban drainage system in Changwon City, where flood damage had occurred due to sea level rise. In spite of the freefall conditions for the currently set performance targets for the prevention of disasters, it was confirmed that there is a greater risk of flooding due to sea level rise. The results of this study show the spatial variation of flood risk due to sea level change near the coastal cities. Furthermore, these results can be used as reference data for establishing countermeasures to tackle related disasters.
Key Words: Climate Change, Heavy Rainfall, Coastal City, Urban Sewer, XP-SWMM
요지
기후변화로 인한 이상기후 현상은 비단 국내에 국한되지 않고 전 세계적으로 나타나고 있으며 이로 인한 자연재해의 발생빈도와 크기가 증가하고 있다. 국내에서는 집중호우와 해수면 수위의 상승이 가속화 되어 기존의 도심지 내수재해 발생 유형과 맞물려 연안도시 지역에 복합적인 침수피해를 초래하고 있다. 본 연구에서는 XP-SWMM 모형을 이용하여 연안도시 지역의 재해발생 위험성을 고찰하고 해수면 상승에 따른 침수위험을 사전에 대비하기 위한 방재성능목표의 적정성을 검토하였다. 해수면 상승에 따른 침수피해가 발생했던 창원시 일대 우수관망을 대상으로 방재성능목표와 해수면 상승시나리오를 적용하였다. 현재 설정된 방재성능목표에 대한 자연유출 조건에서도 일부 침수에 노출되어 있음을 확인하였으며 해수위 상승에 따른 침수위험도가 증가하는 것을 확인하였다. 본 연구를 통해 제시한 결과들은 연안도시 인근의 해수면 변화에 따른 침수위험도를 시공간적인 변화 양상으로 살펴볼 수 있으며 나아가 관련 치수대책 수립시 참고자료로 활용이 가능하다.
핵심용어: 기후변화, 집중호우, 연안도시, 우수관거, XP-SWMM


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