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Paper Information

Journal:   AGRICULTURAL RESEARCH   2007 , Volume 7 , Number 3; Page(s) 91 To 101.
 
Paper: 

SELECTION OF SUITABLE METHOD TO ESTIMATE SUSPENDED LOAD AND BED LOAD IN AHAR CHAI, RIVER (UPSTREAM OF SATTARKHAN DAM)

 
 
Author(s):  SAMADIAN FARD S., GHORBANI M.A., HOSEINILER R., HOSEIN ZADEH DELIR A., FARSADI ZADEH D.
 
* 
 
Abstract: 
investigating of sediment rate in rivers is one of the important aspects in river engineering. To estimate suspended load and bed load in streams several relations have been presented during past decades. But the complexity of the sediment transport phenomenon has been the reason why the different methods have been developed. In this research, in order to select the most suitable method to estimate suspended and bed load, the hydraulic and geometric specifications of Ahar Chai river in Orang hydrometry station simultaneously with the suspended load were measured in specific dates by the expert team, using the sampling bottles and bed load by the Helley Smith apparatus.
Then, in realated laboratories the suspended and bed load were determined. The suspended load rate was calculated by using four methods and the bed load rate was done by using eight methods.
Fianally, by using the obtained results, Chang, Simons and Richardson method to estimate the suspended load with root square error of (RMSE) 861.269 and Meyer-Peter & Muller method to estimate bed load with value of RMSE 7.78628, has been suggested.
 
Keyword(s): AHAR CHAY, BED LOAD, HELLEY SMITH, SEDIMENT TRANSPORT, SUSPENDED LOAD
 
References: 
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