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Purwadi, Opik Taufik
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Civil Engineering, Building, Construction & Architecture

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Simulasi Tampungan Bendungan Sukamahi, Kecamatan Megamendung Kabupaten Bogor Kurniasih, Ayu; Wahono, Endro P; Zakaria, Ahmad; Purwadi, Opik Taufik
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 9 No. 3 (2021): Edisi September 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i3.1994

Abstract

Banjir yang sering terjadi di wilayah Jakarta dan sekitarnya yang hampir terjadi setiap tahunnya atau setiap musim penghujan datang menimbulkan kerugian harta benda, selain itu juga menggangu kegiatan perekonomian. Salah satu upaya untuk mengurangi pengaruh kerugian yang disebabkan oleh banjir di kota Jakarta tersebut yaitu membangun 2 (dua) buah bendungan di Daerah Aliran Sungai Ciliwung yang terletak di hulu sungai yang berada di Kabupaten Bogor, yaitu Bendungan Sukamahi yang berfungsi sebagai pengendalian banjir sungai ciliwung oleh sebab itu dilakukan simulasi tampungan menggunakan program HEC-HMS 4.5.Penelitian ini dibutuhkan beberapa analisis antara lain meliputi hujan harian maksimum, curah hujan rancangan, hujan efektif, hidrograf satuan banjir rancangan, dan simulasi tampungan menggunakan program HEC-HMS 4.5.Berdasarkan penelitian ini menunjjukan bahwa curah hujan yang mungkin terjadi (PMP) mrncapai 571,7967 mm, debit banjir 2, 5, 10, 20, dan 50 tahun mencapai 56,6853 m3/det, 72,8729 m3/det, 84,1311 m3/det, 110,5354 m3/det. Selain debit banjir, dalam penelitian ini berdasarkan terowongan tertutup didapat kapasitas pelimpah dan volume tampungan dalam kala ulang 50 tahun yaitu didapat tinggi muka air maksimum yaitu 597,4 m, dengan kelebihan 0,65 m diatas spillway dengan volume sebesar 969400 m3.Kata kunci : HEC-HMS, Bendungan, PMP, Simulasi Tampungan.
Perencanaan Embung Konservasi Di Taman Rusa Universitas Lampung Cindy, Amelia Sukma; Purwadi, Opik Taufik; Welly, Margaretta; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 7 No. 1 (2019): Edisi Maret 2019
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v7i1.1146

Abstract

University of Lampung has some of water patch such as small dams and retention basin which is needed optimalisazion to improve the function. Among of the small dams, there is small dam is located at Deer Park at University Of Lampung need to redesign. The purpose of redesign this small dam conservation is to increase its function as water conservation building. Water conservation building has functioned as rain harvesting and water reserves during the dry seasonThe methods are used to redesign this small dam conservation are hydrological , small dam conservation construction planning , analysis stability of  planned constructions and the last method is estimating building construction cost.  Small dam conservation planned height of 5 m,withabaseelevationat+104,7 thedamcrestelevation+112,5,00m.The flood debit of 426,279 m3/sec with cycle period 10 years.Spillway which used is Open Ogee type and basin specific energy building Vlugter type. Stability small dam conservation at Deer Park University of Lampung construction stated as safe. Cost estimated of design planning of conservation small dam is Rp. 5.918.096.000,00. Reservoir volume after planned to be 13.213,5627 m3. This volume has increased from the existing volume of the previous reservoir, which was only 5.981,3997 m3. It can be concluded, the ability of small dam conservation to rain harvesting and water reserves during the dry season increases. Keyword : Small dam, Conservation, University of Lampung
Co-Authors Ahmad Herison Ahmad Zakaria Ayu Kurniasih, Ayu cindy, amelia sukma Endro Prasetyo Wahono Margaretta Welly