Urban Drainage Management and Flood Control Improvement Using the Duflow Case Study: Aur Sub Catchment, Palembang, South Sumatra, Indonesia

Authors

Charlotte de Fraiture, Department of Land and Water Development, Water Science and Engineering, UNESCO IHE, Westvest 7 2611 AX Delft, The Netherlands
Robiyanto Hendro Susanto, Integrated River Lowland Coastal Development Management and Planning, Double Degree Program Pengelolaan Lingkungan, Universitas Sriwijaya, Palembang 30139, Indonesia
F.X. Suryadi, Department of Land and Water Development, Water Science and Engineering, UNESCO IHE, Westvest 7 2611 AX Delft, The Netherlands
Harrini Mutiara Hapsari Wahyu, Department of Architecture Engineering, Faculty of Engineering, Universitas Sriwijaya, Palembang 30128, IndonesiaFollow

Abstract

Urban flooding often times staggers the livelihood in an urban area, which most likely happens in the lowland urban area. Therefore, the existing urban drainage system should be improved in order to tackle the upcoming urban flooding events, which are more than likely to be more devastating than those in the previous years. The research location is in Palembang, Sumatra, Indonesia, where 30% of its urban part is a lowland area. The selected Aur Sub Catchment is located in Silaberanti. The main objective of this research is to improve the current drainage system in order to achieve the optimal design for urban drainage arrangement. This research was developed using Duflow Modelling Studio 3.8.3 in collaboration with ArcGIS 10.1 to schematize the drainage system and analyse the spatial and topographical condition of the research area. As a result, there are three development scenarios established by Duflow Modelling Studio in order to improve the drainage system in the research area. The first scenario is the current and extreme condition in the study area. The second scenario is the extreme condition, which is represented by the extreme rainfall. The third scenario is the improvement possibilities of the existing drainage system. There are three different types of improvements and modifications for the third scenario which are: canal dredging, canal dike/embankment, a pump installation, and a flap gate installation. In conclusion, based on three different scenario analyses, the most feasible, suitable, effective, and efficient alternative for overcoming the flooding in Silaberanti is a flap gate installation combined with dike construction in the flood risk sections of the river because it works automatically depending on the water level in the River.

Bahasa Abstract

Pengelolaan Drainase Daerah Perkotaan dan Perbaikan Pengendalian Banjir Menggunakan Studi Kasus Duflow: Sub-Daerah Tangkapan Air Aur, Palembang, Sumatra Selatan, Indonesia. Banjir di daerah perkotaan sering kali mengganggu laju penghidupan di daerah perkotaan, dan cenderung terjadi di daerah perkotaan dengan dataran rendah. Oleh karena itu, sistem drainase perkotaan yang ada harus ditingkatkan kualitasnya untuk mengatasi kejadian banjir perkotaan yang akan datang, yang kemungkinan besar efeknya akan lebih buruk daripada di tahun-tahun sebelumnya. Lokasi penelitian makalah ini adalah Palembang, Sumatra, Indonesia, dimana 30% daerah perkotaannya terdiri dari daerah dataran rendah. Sub-daerah tangkapan air Aur yang dipilih terletak di Silaberanti. Tujuan utama dari penelitian ini adalah untuk memperbaiki sistem drainase yang ada agar dapat mencapai desain optimal untuk pengaturan drainase perkotaan. Penelitian ini dikembangkan dengan menggunakan Duflow Modeling Studio 3.8.3 dan ArcGIS 10.1 untuk merancang sistem drainase dan menganalisis kondisi spasial dan topografi kawasan penelitian. Sebagai hasilnya, ada tiga skenario pembangunan yang dibuat oleh Duflow Modeling Studio untuk memperbaiki sistem drainase di daerah penelitian. Skenario pertama adalah kondisi saat ini dan kondisi ekstrem di wilayah studi. Skenario kedua adalah kondisi ekstrem, yang diwakili oleh curah hujan yang sangat tinggi. Skenario ketiga adalah kemungkinan perbaikan sistem drainase yang ada. Ada tiga jenis perbaikan dan modifikasi untuk skenario ketiga, yaitu: pengerukan kanal, konstruksi tanggul kanal, instalasi pompa, dan instalasi pintu flap. Makalah ini menyimpulkan, berdasarkan tiga analisis skenario yang berbeda, bahwa alternatif yang paling layak, cocok, efektif, dan efisien untuk mengatasi banjir di Silaberanti adalah instalasi pintu flap yang digabungkan dengan konstruksi tanggul di bagian-bagian sungai yang berisiko banjir karena pintu flap dapat bekerja secara otomatis tergantung pada permukaan air sungai.

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Recommended Citation

Fraiture, Charlotte de; Susanto, Robiyanto Hendro; Suryadi, F.X.; and Wahyu, Harrini Mutiara Hapsari (2017) "Urban Drainage Management and Flood Control Improvement Using the Duflow Case Study: Aur Sub Catchment, Palembang, South Sumatra, Indonesia," Makara Journal of Technology: Vol. 21: Iss. 2, Article 6.
DOI: 10.7454/mst.v21i2.3085
Available at: https://scholarhub.ui.ac.id/mjt/vol21/iss2/6