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Analysis of Design Flood at Buyeon Reservoir by using FCSR Method

  • Crisisonomy
  • Abbr : KRCEM
  • 2015, 11(1), pp.279-297
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general

강현모 1 Lee, Hyosang 2

1한국농어촌공사
2충북대학교

Accredited

ABSTRACT

The failure of small reservoirs in rural communities in Korea, such as Keuyeon reservoir in 2014, have been increased in recent decades. Especially small reservoirs in rural area, which had been built before 1960, remain as a difficult situation which can not cover sharp increase of rainfall in recent decades. This study analyses the design flood of small reservoir( Buyeon which located in Chungbuk) with recently adopted Flood Estimation Manual of Ministry of Land, Infrastructure, and Transport in Korea with FCSR(Flood Control System for Reservoir) method of Korea Rural Community Corporation. it aims to suggest a systematic analysis of the design flood for agricultural small reservoir, a evaluation method in accordance with the general catchment flood estimation method. This study estimates the design flood at Buyeon agricultural reservoir located in Chungbuk and compare the design flood(37.10 m3/s in 100 return period) in 1960 which was built in. Also the enhanced design flood and management regime in reservoir( in 200 year return period with 20% of safety increasing factor) is considered. The design flood of Buyeon is calculated as 42.2 m3/sec, 50.6 m3/sec with FCSR. It was the excess of capacity of about 5.1m3/s and 13.5m3/s compared to design flood in 1960 and enhanced design flood respectively. This study provides the basis for the foundation of a safe society in rural areas to estimate the design flood by enhanced recent flood estimation method.

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