Evaluasi Kinerja Tampungan Waduk Selorejo Menggunakan Perangkat Lunak HEC-HMS
Performance Evaluation of Selorejo Reservoir Using HEC-HMS Software
DOI:
https://doi.org/10.25299/saintis.2021.vol21(01).6695Keywords:
Banjir, HEC-HMS, Periode Ulang, Tampungan, WadukAbstract
[ID] Permasalahan banjir merupakan permasalahan pengelolaan air yang sering terjadi di Indonesia. Untuk mengatasi permasalahan tersebut dibuat sebuah struktur yaitu waduk yang berfungsi sebagai pengendali banjir. Namun seiring waktu tampungan waduk akan semakin menurun akibat adanya akumulasi sedimen yang terbawa oleh air sungai yang masuk ke dalam waduk dan mengendap. Sehingga diperlukan evaluasi kinerja tampungan waduk tersebut, Permasalahan ini juga dialami oleh Waduk Selorejo yang terletak di Kabupaten Malang. Untuk melakukan evaluasi kinerja tampungan waduk digunakan bantuan perangkat lunak HEC-HMS yang dapat mensimulasikan debit banjir yang masuk beserta elevasi tampungan waduk. Berdasarkan hasil analisis tampungan Waduk Selorejo mampu untuk mengendalikan banjir periode ulang desain awal nya yaitu periode ulang 1000 tahun. Selain itu Waduk Selorejo juga mampu menampung debit banjir Probable Maximum Flood (PMF) apabila muka air awal waduk diturunkan sampai elevasi +605 m.
[EN] Flood problem is a water management problem that often occurs in Indonesia. To overcome this problem, a structure is created, namely DAM that functions as a flood controller. However, over time the reservoir storage will decrease due to the accumulation of sediment carried by river water that enters the reservoir. So it is necessary to evaluate the performance of the Rervoir storage. This problem is also experienced by the Selorejo DAM which is located in Malang Regency. To evaluate the performance of the reservoir storage, the help of HEC-HMS software is used which can simulate the incoming flood discharge along with the elevation of the reservoir. Based on the analysis, the Selorejo DAM is able to control the flood of its initial design period which is the 1000-year return period. In addition, the Selorejo Reservoir is also able to accommodate the Probable Maximum Flood (PMF) flood discharge if the initial water level of the reservoir is lowered to an elevation of +605 m.
Downloads
References
M. T. Abror, R. Setiawan, S. Darsono, and H. Nugroho, “Perancangan Waduk Mundingan di Kota Semarang,” vol. 4, no. 4, pp. 406–414, 2015, [Online]. Available: http://ejournal-s1.undip.ac.id/index.php/jkts.
M. A. Sudarmin, “Analisis Banjir Rancangan dan Kapasitas Pelimpah Bendungan Way Yori.”
Khoiriyah, “Evaluasi Keamanan Bendungan Waduk Cengklik Periode Ulang 1000 Tahun.”
M. Imamuddin, “Evaluasi Kapasitas Tampungan Setu Tarisi Kabupaten Majalengka,” 2016.
T. Tingsanchali and S. Tanmanee, “Assessment of hydrological safety of Mae Sruai Dam, Thailand,” in Procedia Engineering, 2012, vol. 32, pp. 1198–1204, doi: 10.1016/j.proeng.2012.02.077.
M. M. Abu-Abdullah, A. M. Youssef, N. H. Maerz, E. Abu-Alfadail, H. M. Al-Harbi, and N. S. Al-Saadi, “A flood risk management program of wadi baysh dam on the downstream area: An integration of hydrologic and hydraulic models, Jizan region, KSA,” Sustainability (Switzerland), vol. 12, no. 3, Feb. 2020, doi: 10.3390/su12031069.
Perusahaan Umum Jasa Tirta I, OPSLREJO.
C. Cahyono and W. K. Adidarma, “Influence analysis of peak rate factor in the flood events’ calibration process using HEC–HMS,” Modeling Earth Systems and Environment, vol. 5, no. 4, pp. 1705–1722, Dec. 2019, doi: 10.1007/s40808-019-00625-8.
Badan Standardisasi Nasional, SNI 2415: 2016 Tata Cara Perhitungan Debit Banjir Rencana. 2016.
Pusat Penelitian dan Pengembangan Pengairan, “Bendungan Besar di Indonesia.” 1995
Badan Standardisasi Nasional, SNI-7746:2012. Tata Cara Perhitungan Perhitungan Hujan Maksimum Boleh Jadi dengan Metode Hershfield. 2012.
J. P. J. Pietersen, J. O. Gericke, J. C. Smithers, and Y. E. Woyessa, “Review of current methods for estimating areal reduction factors applied to South African design point rainfall and preliminary identification of new methods,” Journal of the South African Institution of Civil Engineering, vol. 57, no. 1, pp. 16–30, Mar. 2015, doi: 10.17159/2309-8775/2015/v57n1a2.
K. Christian, D. Yudianto, and S. R. Rusli, “Analisis Pola Distribusi Hujan Terhadap Perhitungan Debit Banjir Das Cikapundung Hulu,” Jurnal Teknik Sumber Daya Air, vol. 3, no. 3, pp. 153–160, 2017.
Ginting S., “Karakteristik Hujan Ekstrim Untuk Prediksi Debit Banjir di Jakarta,” 2017.
J. Swingly and F. Sumarauw, ”Pola Distribusi Hujan Jam-Jaman Daerah Minahasa Selatan dan Tenggara,” Jurnal Sipil Statik, vol. 4, no. 11, pp. 675–686, 2016.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Copyright. This is an open access article which means that all content is freely available without charge to the user or his/her institution. Jurnal Saintis allows the author(s) to hold the copyright without restriction. The copyright in the text of individual articles (including research articles, opinion articles, and abstracts) is the property of their respective authors distributed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License which permits unrestricted use, distribution, and reproduction in any medium. Users are allowed to read, download, copy, distribute, search, or link to full-text articles in this journal without asking by giving appropriate credit, provide a link to the license, and indicate if changes were made.
