Main Article Content

Febrinasti Alia
Sakura Yulia Iryani
Nuzula Ramadhanti

Abstract

According to Public Works Office of Palembang City, Buah Watershed is listed as one of priority areas that require immediate flood management actions. Flat terrain, high rainfall intensity, tidal fluctuation worsens by massive land use change, are major causes that increase surface water runoff. Therefore, retention basins as one of technical solutions are expected to accommodate runoff discharge and reduce flood. This study aims to analyze the existing hydrological conditions of Buah watershed and to simulate the effectiveness of designed retention basins on peak flow reduction. Hydrological analysis using SCS Unit Hydrograph Model, HEC-HMS combine with spatial analysis using GIS in 26 subcatchment areas resulted on peak discharges range from 1,27 m3/s – 15,71 m3/s. Furthermore, there are ​​12 proposed retention basins within study area ranges from ​​0,580 Ha – 3,967 Ha that are designed to reduce the peak discharge. Simulation result of flood discharge reduction using HEC-HMS indicates that the effectiveness of retention basins in proposed locations varies from 0,03% - 80,05% depending on watershed areas, land availability, and the depth of retention basins.

Downloads

Download data is not yet available.

Article Details

How to Cite
Alia, F., Iryani, S. Y., & Ramadhanti, N. (2021). Analisis Kapasitas Kolam Retensi Untuk Pengendalian Banjir di DAS Buah Kota Palembang: Analysis of Retention Basin Capacity for Flood Control in the Buah Watershed of Palembang City. Cantilever: Jurnal Penelitian Dan Kajian Bidang Teknik Sipil, 9(2), 97-107. https://doi.org/10.35139/cantilever.v9i2.44
References
Al Amin, M. B. (2016). Analisis Genangan Banjir di Kawasan Sekitar Kolam Retensi dan Rencana Pengendaliannya, Studi Kasus: Kolam Retensi Siti Khadijah Palembang. Jurnal Perencanaan Wilayah dan Kota, 27, 69-90.
Alia, F., Al Amin, M. B., & Kurnia, A. Y. (2019). Evaluasi Aspek Teknis Prasarana Kolam Retensi untuk Pengendalian Banjir di Kecamatan Sukarame, Kalidoni, Kemuning dan Ilir Timur II Palembang. Seminar Nasional AVoER XI, Unsri, Palembang, 23 Oktober 2019.
Alia, F., Rhaptyalyani, & Ilmiaty, R. S. (2018). Perencanaan Kolam Retensi Untuk Pengendalian Banjir di RSMH Kota Palembang. Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil, 7(1), 13-20.
Horisky, C., Rahmadi, & Harahap, T. (2018). Pengaruh Perubahan Pola Pengunaan Lahan Terhadap Banjir di DAS Buah Kota Palembang.Seminar Nasional Hari Air Dunia 2018, Unsri, Palembang, 20 Maret 2018.
Kodoatie, R. J. (2013). Rekayasa dan Manajemen Banjir Kota. Yogyakarta: ANDI Offset.
Suripin. (2004). Sistem Drainase Perkotaan yang Berkelanjutan. Yogyakarta: ANDI Offset.
Triatmodjo, Bambang. (2008). Hidrologi Terapan. Yogyakarta: Beta Offset.
Daftar 20 Kota Rawan Banjir di Indonesia Viva. (2018, November). Diakses dari: https://www.viva.co.id/berita/nasional/1090275-daftar-20-kota-rawan-banjir-di-indonesia.