A Physical Model Approach to the Depth of Erosion in the Buah River, Palembang, Indonesia

Muhammad Nasrullah, Achmad Syarifudin


The research was conducted to see the flow phenomenon in the river with hydroulic modeling, namely by using the river/channel scale model in the Bina Darma River and Hydraulics laboratory.The Buah River, with the main river being 7.93 km long, has many meanders and a river wall reinforcement has been built. The average grain diameter (d50) used in this study was 0.025 mm based on the sieve analysis carried out as sediment material at the time of modeling. The results showed that the erosion depth at the bottom of the Buah river occurs at the beginning of the river/channel. Buah river is dominated by the river estuary, during the "running test" of 30 minutes, the greatest (maximum) erosion occurs so it is said that the optimum condition is erosion of 1.8 cm in the model and with a scale of 1: 100, the erosion that occurred in the field (prototype) was 1.8 m.


The Buah river; bed load; scale models; erosion depht

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DOI: http://dx.doi.org/10.52155/ijpsat.v31.1.4074


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