An Efficient Management of Sediment Deposit for Reservoir Long-Term Operation (2) - Sediment Distribution and Reduction Method in Reservoir

저수지 장기운영을 위한 퇴적토사의 효율적 관리(2) - 저수지 퇴사분포 및 저감방안

  • Ahn, Jae Hyun (Department of Civil Engineering, Seokyong University) ;
  • Jang, Su Hyung (Research Center for Disaster Prevention Science and Technology, Korea University) ;
  • Choi, Won Suk (Department Institute of Construction Technology, Hyundai Engineering & Construction) ;
  • Yoon, Yong Nam (Water Resources Dept., Saman Corporation)
  • 안재현 (서경대학교 토목공학과) ;
  • 장수형 (고려대학교 방재과학기술연구센터) ;
  • 최원석 ((주) 현대건설 기술개발원(설계)) ;
  • 윤용남 ((주) 삼안 수자원부)
  • Received : 2006.08.24
  • Accepted : 2006.10.13
  • Published : 2006.11.30

Abstract

In this study, the reservoir sediment reduction methods for long-term operation are proposed by the analysis of both sediment deposit characteristics and sediment reduction effect by each method. To that end, a flowchart for sediment analysis in reservoir is established and sediment deposit is simulated by SMS-SED2D model. The sediment reduction methods which are sediment passing (sluicing), flushing, trapping, bypassing and mechanical removal are used. From the simulation results, the effective method for sediment reduction is operation which is coupled by both sediment passing with sand gate and sediment trapping with debris dam. And If sediment flushing will be used once a year after 50 years, conservation storage can be secured until 100 years after dam construction.

Acknowledgement

Supported by : 한국건설교통기술평가원

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