A Study on Estimation by Depth Integrating Method of Sediment Discharge

수심적분법에 의한 유사량 추정연구

  • 서승덕 (경북대학교 농과대학) ;
  • 김활곤 (경북대학교 농과대학 수공학연구실) ;
  • 우효섭 (한국건설기술연구원 수자원연구실)
  • Published : 1996.02.01

Abstract

In Korea, total sediment discharge of a river has been estimated simply by using certain sediment transport formulas including, among others, Einstein's formula. Those formular, however, are known not to be reliable enough for the result calculated by them to be used directly to river planning and management. Therefore, the study used the Modified Einstein Procedure to the estimation of total sediment discharge, because this method is reliable estimated by measurement. Here, measurement of sediment discharge used depth integrating method. The major results obtained from the study for estimation by depth integrating method of sediment discharge in Naeseong stream are as follow; 1 The sedeiment characteristics of Naeseong stream are; The distribution of sediment grain size shows that silt and clay are 55% and sand is 45%. and the bed load sediment grain size is constituted that sand contained with the grain size from O.062mm to 2.0mm is 80% 2. The sediment rating formulas derived from the regression analysis between the sediment discharge and flow discharge are; Seogpo-Gyo : Qs=$0.017 \times 10^{-4} Q^{2.352}$, where discharge is l0cms $0.074 \times 10^{-4} Q^{2.066}$, where discharge is l0cms

Keywords

References

  1. 댐 설계를 위한 유역단위 비유사량 조사.연구. 건설부
  2. 경북대학교 박사학위론문 중소유역하천의 수문학적 특성이 유사량에 미치는 영향 김활곤
  3. 경북대학교 논문집 v.41 하천유역의 물리적특성과 농업용저수지의 내용적변화와의 상호관계 연구 서승덕
  4. 내성천 시험조사유역에서의 유사량실측 서승덕;김활곤
  5. 건기연 90-WR-112 수정아인쉬타인 방법의 한국 하천에서의 적용-하천 총유사량의 추정 한국건설기술연구원
  6. of Hyd,ASCE v.106 no.HY2 Sediment Suspended in Stream Flow Antsyferov,S.M.;Kos'yan,R.D.
  7. U.S.Geological Survey, Water Supply Paper 1357 Computations of Total Sediment discharge, niobrara River near Cody, Nebrska Colby,B.R.;Hembree,C.H
  8. Technical Bulletin 1026 The bed Load Function for Sediment Transportation in Open Channel Flows Einstein,H.A
  9. Sedimentation Engineering Vanoni,V.A.(ed.)