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Avoiding Flood by Improving Cross-Sectional Capacity through River Normalization
Abstract
Bekasi is one of the regions in Indonesia that often suffer from flooding. To overcome flooding problems in the Bekasi area, the Ciliwung Cisadane River Basin Center has begun a normalization project along the Bekasi River. This research aimed to evaluate the Bekasi River's cross-sectional capacity both before and after normalization. The analysis focused on the section where the Cileungsi and Cikeas rivers converge to the Bekasi weir. In this research, secondary data were employed, such as national digital elevation model data, detailed engineering designs of Bekasi River flood control activities, and rainfall data from the Cibinong Station that covers the period from 2006 to 2020. The result from planned flood discharge with the Nakayasu synthetic unit hydrograph method for a return period of 25 years on the Bekasi River was obtained at 665.81 m3/s. The results of hydraulic analysis before normalization with the HEC-RAS application show that flooding occurred at 102 out of 116 stations, with capacities of river cross-sections ranging from 453.49 m³/s to 665.71 m³/s at these overflow stations. Following the river normalization process, the cross-sectional capacity at all Bekasi River stations can accommodate flood discharge without any instances of overflow.
Keywords: Flood, HEC-RAS, Nakayasu, Normalization, Rainfall.
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Andayani, R., & Umari, Z.F. (2022). Debit banjir rancangan DAS Selabung dengan HSS Nakayasu. Jurnal Deformasi, 7(1), 21–31. https://doi.org/10.31851/deformasi.v7i1.7803
Ardiansyah, M., Suyono, Titisariwati, I., Cahyadi, T.A., & Kresno. (2021). Analisis perbandingan perhitungan curah hujan rencana berdasarkan periode ulang hujan dengan metode Gumbell, metode log Pearson III, metode Iway Kadoya studi kasus tambang andesit. Jurnal Inovasi Pertambangan dan Lingkungan, 1(2), 11–16. https://doi.org/10.15408/jipl.v1i2.22731
BSN (Badan Standardisasi Nasional). (2016). SNI 2415 Tentang Tata Cara Perhitungan Debit Banjir Rencana.
Bagaskara, D.F., Bisri, M., & Andawayanti, U. (2024). Studi evaluasi sumur resapan di Kelurahan Cipinang Besar, Kecamatan Jatinegara, Kota Jakarta Timur. Jurnal Teknologi dan Rekayasa Sumber Daya Air, 04(01), 78–90. https://doi.org/10.21776/ub.jtresda.2024.004.01.007
Damayanti, A.C., Limantara, L.M., & Haribowo, R. (2022). Analisis debit banjir rancangan dengan metode HSS Nakayasu, HSS ITB-1, dan HSS Limantara pada DAS Manikin di Kabupaten Kupang. Jurnal Teknologi dan Rekayasa Sumber Daya Air, 2(2), 300–313. https://doi.org/10.21776/ub.jtresda.2022.002.02.25
Djunit, N., & Aziz, M.R.A. (2020). Mitigasi bencana banjir (studi kasus di Kecamatan Rawalumbu Kota Bekasi). Jurnal Ilmiah Plano Krisna, 16(2), 220–231.
Feyen, J. (1980). Drainage of Irrigated Land. Batsford Academic and Educatonial Ltd, Katholieke Universitet Leuven, Center for Irrigation Engineering.
Herison, A., Romdania, Y., Purwadi, O.T., & Effendi, R. (2018). Kajian penggunaan metode empiris dalam menentukan debit banjir rancangan pada perencanaan drainase (review). Jurnal Aplikasi Teknik Sipil, 16(2), 77–86. https://doi.org/10.12962/j2579-891X.v16i2.3819
Husna, S.L., Safriani, M., & Farizal, T. (2022). Perbandingan analisis debit banjir menggunakan hidrograf satuan sintetis (HSS) Snyder dan Nakayasu pada Sungai Krueng Tripa. Jurnal Media Teknik Sipil Samudra, 3(2), 8–19. https://doi.org/10.55377/jmtss.v3i2.5695
Kodoatie, R.J., & Sugiyanto. (2002). Banjir, Beberapa Penyebab dan Metode Pengendaliannya dalam Perspektif Lingkungan. Pustaka Pelajar.
Krisnayanti, D.S., Bunganaen, W., Hangge, E.E., Munaisyah, F., & Khaerudin, N.D. (2018). Analisis nilai koefisien limpasan permukaan pada embung kecil di Pulau Flores bagian timur. Jurnal Sumber Daya Air, 14(2), 125–140. https://doi.org/10.32679/jsda.v14i2.325
Limantara, L.M. (2010). Hidrologi Praktis. CV Lubuk Agung, Bandung: 336 pp.
Margini, N.F., Nusantara, D.A.D., & Ansori, M.B. (2017). Analisa hidrograf satuan sintetik Nakayasu dan ITB pada sub DAS Konto, Jawa Timur. Jurnal Hidroteknik, 2(1), 41–45.
Rojali, A., & Elsari, P. (2020). Pemodelan banjir di Perumahan Pondok Gede Permai Bekasi. Rekayasa Sipil, 9(1), 6. https://doi.org/10.22441/jrs.2020.v09.i1.02
Ruhiat, D. (2022). Implementasi distribusi peluang gumbel untuk analisis data curah hujan rencana. Teorema: Teori Dan Riset Matematika, 7(1), 213–234. https://doi.org/10.25157/teorema.v7i1.7137
Soemarto, C. (1999). Hidrologi Teknik. Erlangga, Jakarta: 313 pp.
Soewarno, S. (1995). Hidrologi Aplikasi Metode Statistik untuk Analisa Data. Nova, Bandung: 269 pp.
Suripin, S. (2004). Sistem Drainase Perkotaan yang Berkelanjutan. [ISBN: 9797311376] Andi Offset, Yogyakarta: 384 pp
Triatmodjo, B. (2010). Hidrologi Terapan. [ISBN: 978-979-8541-40-7]. Beta Offset, Yogyakarta: 358 pp.
Upomo, T.C., & Kusumawardani, R. (2016). Pemilihan distribusi probabilitas pada analisa hujan dengan metode goodnes of fit test. Jurnal Teknik Sipil Perencenaan, 18(2), 139–148. https://doi.org/10.15294/jtsp.v18i2.7480
Yunida, R., Kumalawati, R., & Arisanty, D. (2017). Dampak bencana banjir terhadap kondisi sosial ekonomi masyarakat di Kecamatan Batu Benawa, Kabupaten Hulu Sungai Tengah, Kalimantan Selatan. Jurnal Pendidikan Geografi, 4(4), 42–52.
DOI: http://dx.doi.org/10.23960/jtep-l.v13i4.1023-1035
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