Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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An Experimental Study of Reservoir Failure Phenomena According to Transitional Zone: Spillway Scour During Overflow

저수지 월류 시 여수토 접속부 세굴에 따른 붕괴 현상의 실험적 연구

  • 김영익 (충남대학교 농업생명과학대학 지역환경토목학과) ;
  • 연규석 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 김기성 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 정종우 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 김용성 (강원대학교 농업생명과학대학 지역건설공학과)
  • Received : 2011.01.23
  • Accepted : 2011.03.01
  • Published : 2011.03.31
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Abstract

This study is a preliminary investigation into the development of a construction method that will protect a reservoir even during over flows caused by severe flooding. Through hydraulic modeling tests, the destructive phenomena caused by spillway-junction scour during reservoir overflow were modeled, and the effects on the embankment during such an overflow and the spillway-junction movements are discussed. The reservoir destruction model used the Tanbu reservoir, located in Gangwondo Chuncheon-si Namsanmyeon (H＝22 m, L＝115 m), as the model reservoir and created an embankment with a 1/60 ratio. We review the spillway-junction safety factor during overflow and embankment movement following reinforcement measures for three different cases: no reinforcement, cemented sand and gravel (CSG) reinforcement and water-blocking sheet reinforcement. The results of this study confirmed that when the spillway-junction is exposed to soil, it is very vulnerable to overflow and that a water-blocking sheet or CSG reinforcement are very effective measures in preventing embankment destruction in the long-term period.

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References

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