Physical Model Approach of Erosion and Sedimentation Movement in Front of Sluice Gate in the JSC Main Channel

Rico Andro Belli, Achmad Syarifudin


The urban drainage system which always experiences flooding in the city of Palembang every year is the Jakabaring watershed. The Jabaring watershed is one of 33 points of frequent flood areas in Palembang City. This is because, until now, the Jakabaring River Basin (Watershed) area does not yet have pumping facilities. So that it often becomes a customer for flooding.For this reason, a physical model research is needed in the laboratory, namely with a standard flume with various variations in speed, time and sediment material in the form from river/channel of Jakabaring Sport City (JSC).The results showed that the maximum relative erosion (de/t) occurred in front of the main gate of the JSC channel of 0.04. This means that in 30 minutes, there is an erosion of 12 cm in the model. The maximum relative sedimentation (dd/t) in front of the main JSC channel floodgate occurs at a maximum relative distance (x/t) of max 10, which is 0.05. This means that in 30 minutes, there will be sedimentation in the channel as big as 15 cm in the model.


The Jakabaring watershed; langhaar method; erosion rete; sedimentation rate

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