ANALISIS KAPASITAS SALURAN DRAINASE RAWAN BANJIR KOTA BALIKPAPAN (STUDI KASUS SUB DAS SUNGAI AMPAL)
Keywords:
capacity drainage, run off, ampal sub-watershedsAbstract
The Damai ward on Jalan Mayor Pol. Zainal Arifin, has become one of the priorities for handling flood disasters in Balikpapan City. According to BPBD of Balikpapan City, with high rainfall it can submerge road as high as ± 20 cm to 1.5 m within 3 hours. The purpose of this study was to find out how much run-off is in the ampal sub-watersheds and to find out the appropriate drainage channel capacity for the ampal sub-watersheds.
The method used in this study is a rational method by counting the run off at the ampal sub-watersheds. In accounting runoff debIt, it had coefficient runoff for the ampal sub-watersheds, rain intentsity, and large area stream on the ampal sub-watersheds.
The results of this study indicate that the run off for the return period, 2, 5, 10, 25, 50 and 100 years for drainage channels in the study area are 0.0174 m3/s, 0.0205 m3/s, 0.0229 m3/s, 0.0267 m3/s, 0.0298 m3/s, 0.0334 m3/s. Capacity for drainage in the study area is 7,883 m3/s. Drainage capacities can accommodate the maximum incoming discharge. An elevation difference of 4m can be a flood factor.
References
Andriawan, A. (2021). Kajian Hidrologi pada Sistem Pengendalian Banjir. Rancang Bangun, Vol. 07, No. 01, 35-41.
Dewi Nusantara D. A. (2020). Analisis Kapasitas Saluran Sistem Drainase di Simo Katrungan Kidul Sawahan Surabaya. Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil, Vol. 03 No.1 Maret 2020.
Irmayanti. (2018). Analisis Koefisien Aliran Permukaan (C) Akibat Perubahan Tata Guna Lahan pada Daerah Aliran Sungai (DAS) Ular. Medan: Universitas Sumatra Utara
Kadar Yanti, R. M., & Indra Saputra, A. A. (2019). Pengendalian Banjir di Daerah Aliran Sungai (DAS) Ampal Kota Balikpapan: Analisis Kapasitas Sungai. Jurnal Aplikasi Teknik Sipil, Vol. 19, No. 01.
Kamiana, I. M. (2018). "Hidraulika: Teknik Perhitungan pada Aliran Terbuka dan Tertutup.Palangkaraya: Teknosain.
Nurhimawaty, Ishak, Y., & Firdaus. (2019). Analisis Kapasitas Saluran Drainase pada Sub Daerah Aliran Sungai Bagian Tengah Kota Palembang. Jurnal Teknik Sipil UNPAL, Vol. 09, No.01, 32-46.
Wigati R, Soedarsono, Mutia T. (2016). Analisis Banjir Menggunakan Software Hec-Ras 4.1, Jurnal Fondasi Volume 5 No 2, 51-61
SNI 2415:2016. Tata Cara Perhitungan Debit Banjir Rencana. Badan Standarisasi Nasional. (2016).
Indonesian Society of Applied Science (ISAS)
