CD Skripsi
Analisis Sebaran Angkutan Sedimen Pada Sungai Batang Kuranji Kota Padang Menggunakan Program Hec-Ras 6.1
Rivers have many benefits for human life, so it is very important to preserve the river. One of the problems that often occurs in rivers is sedimentation. Sedimentation that occurs continuously will cause siltation of the riverbed so that it can cause flooding due to reduced cross-sectional capacity of the river. Understanding these conditions, this study was conducted to examine the magnitude and distribution of sediment transport that occurs in rivers. The river that is the location of the study is the Batang Kuranji River which is located in the city of Padang, West Sumatra. In this study, the HEC-RAS version 6.1 was used to model and simulate the sediment transport process at the study site. Simulations were carried out with a duration of 100 days and three flow conditions, discharge at return times of 2, 5 and 10 years. The sediment transport function used is the Meyer-Peter-Muller equation. The results indicate the occurrence of sedimentary material deposits scattered throughout the study location. The total volume of sediment deposit in maximum discharge conditions for 2, 5 and 10 years, respectively, is 6.978 m3, 2.989 m3 and 132 m3. The highest sediment deposit occurred in the simulation with a 10-year return period discharge at RS 14 (STA 1+350) which was 5.141,533 m3. After analysis, the high sediment deposit in the river segment is caused by the effect of decreasing flow velocity.
Keywords: Sediment Transport, HEC-RAS, Simulation, Meyer Peter-Muller.
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