Derivation Method of Rating Curve and Relationships for Flow Discharge-Total Sediment at Small-Midium Streams in Agrarian Basin

농경유역 중소하천에서 유량과 총유사량의 관계식 유도방법

  • 이종석 (한밭대학교 건설환경공학과) ;
  • 김치곤 (한밭대학교 대학원 토목공학과) ;
  • 유의근 (한밭대학교 대학원 토목공학과)
  • Received : 2015.07.10
  • Accepted : 2015.08.07
  • Published : 2015.08.28


This study aims to derivate of the relationship and rating curve for the flow discharge-total sediment using the measured field data from the main points of small-medium stream reaches in agrarian basin. The total sediment of measured data are obtained by bed load added to suspended load which analyzed using the particle size distribution curve of sieve test and the dry or the filtration method from the collected samples by samplers (DH-48, D-74 and BLH-84, BL-84) at the stream bed and the depth-averaged concentration, respectively. These field data had been collected from August 2012 to September 2014 at the seven measuring stations of the national-local channel reaches of the four study streams in the Nonsan river systems of agrarian basin. As a result, the relationships and the rating curve for the flow discharge-total sediment are derived as a function pattern of power law by analyzing on a distribution characteristic of the database set and it will be used as a useful tool to analyze erosion, deposition, and transportation in theoretical research as well as in practical application of the hydraulic sedimentation engineering.


Hydraulic Sedimentation Engineering;Transportation;Total Load;Particle Size Distribution Curve;Agrarian Basin


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