빈도별 홍수량에 따른 침수양상 및 대응방안 연구 - 미호강 하류 중심으로 -
A Study on Flood Patterns and Response Measures According to Flood by Return Period - Focusing on Miho River Downstream -
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
본 연구는 분석 대상 구간인 미호강 유역에 대한 수리·수문분석을 통해 홍수량에 따른 침수 양상을 모의·분석하였다. 우선적으로 강우분석, 홍수량 및 홍수위 산정하여 홍수유출 모델링(HEC-RAS 5.0)을 활용한 침수모의를 진행하였으며 이를 통해 시나리오별 침수면적 및 침수심을 산출하였다. 시나리오는 100년, 200년, 300년, 500년 빈도 홍수량으로 구성하였으며 빈도별 침수양상에 따른 대응방안을 구조적· 비구조적 대책으로 제시하였다. 구조적 대책방안으로는 하도준설, 노후저수지 개선 및 활용, 배수시설물 의 설계빈도 조정, 배수개선사업, 홍수조절지 설치 등이 있으며 비구조적 대책방안으로는 미호강의 홍수대응 매뉴얼 검토, 홍수위험지도 제작, 우회도로 및 대체도로 확보 등을 제시하였다. 향후에는 빈도 별 침수양상에 따른 대책방안을 수립하고 200년빈도에 대한 대책을 우선적으로 추진해야 할 것으로 판단된다.
Abstract
This study simulated and analyzed inundation patterns according to flood volume through hydraulic and hydrological analysis of the section of Miho River basin. Firstly, rainfall has been analyzed, flood volum, flood water level were extracted, and a flood simulation has been conducted using rainfall-runoff model (HEC-RAS 5.0), through which the flooded area and flood depth for each scenario were calculated. The scenario consisted of 100-year, 200-year, 300-year, and 500-year return period floods, and structural and non-structural measures were presented to respond to each frequency of flooding. Structural countermeasures include dredging of river channels, improvement and utilization of old reservoirs, adjustment of design frequency of drainage facilities, drainage improvement project, installation of flood control reservoirs, etc. Non-structural countermeasures include review of Miho River flood response manual, production of flood risk map, etc. Securing detours and alternative roads was suggested. In the future, it is judged that countermeasures according to the frequency of flooding should be established and 200-year frequency should be adopted.
참고문헌 (8)
- Greenwood, J. A., "Probability Weighted Moments : Definition and Relation to Parameters of Several Distributions Expressed in Inverse Form", Water Resources Research, 15(5), pp.1049~1064 (1979)
- Hosking, J. R. M., "L-moments : Analysis and Estimation of Distributions Using Linear Combination of Order tatistics", Journal of the Royal Statistical Society Series B, 52(2), pp.105~124 (1990)
- Hydrology Engineering Center, "Hec-Ras Analysis System User's Manual, Applications Guide, Hydraulic Referance Manual", U. S. Army Corps of Engineers, ~ (2001)
- Comprehensive Flood Management Plan for the Geum River, "Ministry of Land, Infrastructure and Transport", ~ (2008)
- Improvement and Supplement of Probability Rainfall, "Ministry of Land, Infrastructure and Transport", ~ (2011)
- Ministry of Land, Infrastructure and Transport, "Estimation of Design Flood Discharge", ~ (2012)
- Mihochen Basic River Plan, "Ministry of Land, Infrastructure and Transport", ~ (2018)
- National Disaster Management Research Institute, "Frequency Analysis of Rainfall Data Program (FARD)", ~ (2006)