Penggunaan Program Hec-Ras Dalam Pengendalian Banjir Sungai

نویسندگان

چکیده

Berdasarkan pembagian wilayah sungai yang ada di kota Palembang terdapat 21 Sub-DAS, tetapi hanya 18 Sub DAS bermuara langsung ke Musi yaitu Rengas Lacak, Gandus, Lambidaro, Borang, Sekanak, Bendung, Lawang Kidul, Sungai Buah, Juaro, Batang, Sei Lincah, Keramasan, Kertapati, Kedukan Ulu, Aur, Sriguna, Jakabaring dan Plaju. Salah satu Palembang, setiap tahun selalu mengalami banjir antara lain daerah aliran Buah. Buah dengan panjang utama 7,93 km, banyak belokan (meander), mana pada dinding sungainya telah dibangun perkuatan. Tujuan penelitian ini adalah untuk melihat perubahan muka air menggunakan program HEC-RAS ver.4.1.0. Hasil menunjukkan, bahwa mempunyai kolam retensi Arafuru airnya melimpas stasiun 3+000 sebesar 0,90 m baik kanan maupun kiri tebing saluran. Pada 2+750 sampai 2+800 terjadi penurunan berkisar 0,70 0,80 m, sedangkan 2+700 kenaikan tersebut. Hal akibat pengaruh buka tutup pintu (flap gate)

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ژورنال

عنوان ژورنال: Jurnal deformasi

سال: 2022

ISSN: ['2477-4960', '2621-7929']

DOI: https://doi.org/10.31851/deformasi.v7i2.9646