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A Study on the Cross Section Insurance to Provide for the Extraordinary Flood for the Reservoir of the Temporary Division Tunnel

가배수 터널을 이용한 이상홍수 대비 단면확보에 관한 연구

  • Baek, Won-Hyun (Province of Kyeongsangbukdo, Division of balance development) ;
  • Park, Ki-Bum (Department of Construction Information Andong Science College) ;
  • Jee, Hong-Kee (School of Civil, Urban and Environment Engineering, Yeungnam University)
  • 백원현 (경상북도 건설도시 방재국 균형개발과) ;
  • 박기범 (안동과학대학 건설정보과) ;
  • 지홍기 (영남대학교 토목도시공학부)
  • Published : 2008.07.31

Abstract

The object of this study is the safety insurance of the dam to provide for the extraordinary flood. The safety insurance of the reservoir was taken by the preparatory discharge using the temporary division tunnel used during the reservoir construction. In this study, the Sungju reservoir was simulated. The existing discharge facilities of the intake tower of the Sungju reservoir could nat have influence on the flood control. When the Sungju reservoir operated to begin preparatory discharge for 48 hrs by the temporary diversion tunnel that have discharge of an 20-years frequency, the water level was lowered about 20 cm. When the Sungju reservoir operated to begin the continuous discharge after the preparatory discharge, the water level was lowered over 1m but the downstream at risk was caused by the resulted. If it is possible to operate to begin the preparatory discharge of the reservoir for 24 hrs by the temporary diversion tunnel, that will improve the flood control faculty of the reservoir without other hydraulic structure and safety of the Sungju reservoir will be higher.

Keywords

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