The Analysis of Sediment Transport Using Yang Method, Engelund-Hansen Method, and Bagnold Method in Bah Bolon River, Simalungun Regency of North Sumatera

Abstract

The development of the construction that changes land use has resulted the decreasing of infiltration and erosion and the increasing of the sedimentation. So, the floated sediment in the river of Bah Bolon can interfere the performance of turbines of Microhydro Power Plant (MHP). The planning of sediment harvesting media requires data of total amount of sediment transport that occurs in the River of Bah Bolon. So the "The Analysis of Sediment Transport in River of Bah Bolon" needs to be done. Based on secondary data, there are two samples in this study. Sediment transport analysis using three methods, namely Yang Method, Method of Engelund and Hansen, and Bagnold Method. The analyzes show the results of the amount of sediment transport. In the first sample, the results of that three method analysis respectively are 1041.23 tons/year; 12.60 tons/year, and 241.63 tons/year. In the second sample, the results of the three method analysis respectively are 1210.36 tons/year; 11.49 tons/year; and 241.63 tons/year. The results were compared with the results of the calculation of Intan (2015) to conclude what method that is best applied in Bah Bolon River. By ratio analysis, Yang Method is the best method compared to other methods that analiyze the total sediment transport in the Bah Bolon River. The author is not recommend using Bagnold Method or Engelund and Hansen Method to calculate the amount of sediment transport in Bah Bolon river.