- Volume 27 Issue 6
This study aims to analyze the hydrological characteristics of downstream areas by the dam discharge of Soyanggang dam by using HEC-RAS Model. As a result of analyzing the data of dam discharge divided into hydropeaking discharge and total discharge, it as found that the maximum hydro-peaking discharge and the maximum total discharge have been 254.4 CMS and 1567.7 CMS respectively for the past 11 years. When the hydro-peaking discharge was applied to HEC-RAS Model, there occurred some sections where the water level rapidly changed, but the velocity of moving water was quite stable in the range between 0.23 m/sec and 1.16m/sec. Besides, when the total discharge was applied to this model, the submersible bridge along the dam downstream was flooded, and in some sections, the water level increased over the flood plain. Accordingly, this study judged that it is required to necessarily consider all the influence made by an increase of Soyanggang Dam's discharge when waterfronts are installed or used at dam downstream areas.
dam discharge;hydro-peaking discharge;waterfront;downstream areas;hydrological safety
- Gary W. Brunner, "HEC-RAS user's manual" US. army hydrologic engineering center, 2010.
- 최은혁, 안선복, 지홍기, 이순탁, "HEC-RAS모형을 이용한 저류지의 부정류 해석" 대한토목학회 학술발표회 논문집, pp. 883-886, 2005.
- Hicks, F E and Peacock, T., "Suitability of HEC-RAS for Flood Forecasting" Journal Canadian Water Resources Journalk Vol. 30, No. 2, pp. 159-174, 2005. https://doi.org/10.4296/cwrj3002159
- 한국수자원학회, "제13회 수공학웍샾교재 HECRAS의 이론과 실무 적용" 2004.
- 건설교통부, "북한강 수계 하천정비기본계획(보완)" 2002.
- 건설교통부, "북한강, 소양강 하천정비기본계획" 1990.
- 한국종합기술, "소양강 하천환경정비사업 사전 모니터링" 한국종합기술, pp. 2-13, 2007.
- 장인수, 박기범, "HEC-RAS를 이용한 남한강 수계의 수리모델링에 관한 연구" 한국산업응용학회 논문집, 8권, 4호, pp. 213-220, 2005.
- 전계원, 전병희, 연인성, "소양강댐 방류량에 따른 하천의 수리특성 분석" 한국방재학회 학술발표대회논문집, pp. 715-718, 2008.
- 최승업 "댐건설이 주변지역에 미치는 영향과 대책-소양강 다목적댐을 중심으로"한국수자원학회지, 제35권, 제3호, pp. 8-13, 2002.
- 국가수자원관리종합정보시스템 홈페이지, www.-wamis.go.kr/