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All Journal Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Proceedings ACES (Annual Civil Engineering Seminar) Jurnal Teknik Journal of Geoscience, Engineering, Environment, and Technology Jurnal Sinergitas PkM & CSR JURNAL SAINTIS Jurnal Ilmiah Rekayasa Sipil Unri Conference Series: Community Engagement Journal of Applied Materials and Technology Jurnal SENDI Lowland Technology International Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) SAINSTEK Jurnal Teknologi & Rekayasa Sipil
Bambang Sujatmoko
Universitas Riau
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Journal : Jurnal Ilmiah Rekayasa Sipil

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Identifikasi Kapasitas Tampang Minimum dan Stabilitas Mulut Muara Sungai Siak Propinsi Riau Sujatmoko, Bambang; Pratama, Rizki; Hendri, Andy; Rinaldi, Rinaldi
Jurnal Ilmiah Rekayasa Sipil Vol 21 No 1 (2024): April 2024
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v21i1.1316

Abstract

Changes in river mouth section capacity caused by instability of river mouth stability would influence flow conditions in upstream estuaries, as impacted by unsmooth drainage of river flow. Section river capacity and mouth river stability of Siak River would be evaluated by the output of tidal prism at the estuary. The tidal prism was predicted by Hecras software. Input data for hydrodynamic simulation consisted of river geometric data, river bed condition, and boundary condition (discharge and water level). The maximum daily rainfall data and Siak’s catchment parameter could predict flood discharge. Longshore sediment transport netto data could be calculated using wave depth data, wave velocity data and direction of wave around the mouth river. The results of the tidal prism calculation show that the existing cross-sectional area of the mouth of the Siak River estuary can only drain the volume of water due to discharge and tides in the 2-year return period (Amin = 3,115 m2 < A ada = 3,225 m2), while for discharge with other return periods, the capacity of the cross-section river is not sufficient. The excess discharge will flow upstream as a backwater. Siak River mouth stability is still relatively good and stable, with a stability number (S) of more than 388,0 (requirement: S > 150). The start of the backwater effect at KM+220 (60 km from the mouth of the river) caused a significant change in water level (0.94 m) due to the damming of the flow caused by the influence of tides and the bifurcation node of the river (delta).
Analisis Angkutan Sedimen Sungai Batang Kuranji Di Kota Padang Menggunakan HEC-RAS 6.1 Sujatmoko, Bambang; Mintio, Reygi Raica; Fauzi, Manyuk
Jurnal Ilmiah Rekayasa Sipil Vol 21 No 2 (2024): Oktober 2024
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v21i2.1597

Abstract

Sedimentation is one of the problems that often occurs in rivers. Sedimentation that occurs continuously will cause siltation of the riverbed so that it can cause flooding due to reduced cross-sectional capacity of the river. Understanding these conditions, this study was conducted to examine the distribution of sediment transport that occurs in rivers. The river that is the location of the study is Batang Kuranji River which is located in the city of Padang, West Sumatra. HEC-RAS version 6.1 was used to model and simulate the sediment transport process. Simulations were carried out with a duration of 100 days and three flow conditions, flood discharge at return times of 2, 5 and 10 years. The sediment transport function used is the Meyer Peter-Muller equation. The results indicate the occurrence of sedimentary material deposits scattered throughout the study location. The total volume of sediment deposit in flood discharge conditions for 2, 5 and 10 years, respectively, is 6,978 m3; 2,989 m3 and 132 m3. The highest sediment deposit occurred in the simulation with a 10-year return period discharge at RS 14 (STA 1+350) which was 5,141,533 m3. After analysis, the high sediment deposition in the Batang Kuranji river section is caused by a decrease in flow velocity due to the influence of tides at the river estuary.
Co-Authors ', Rinaldi AA Sudharmawan, AA Aisah kurnia utami amad, Ali Aminaton Marto Andika Satria Agus Andy Hendri, MT, Andy Anggraini Lenry Rahman Ari Sandhyavitri Bochari - Buchori Buchori Bunga Rabby Zalfi Citra Dewi Simbolon Darmawan, Igeny Dwiana Dedi Lesmana, Dedi Devita, Venni Doli Ananta Putra Elianora - Elsa Rina S Ermiyati Ermiyati, Ermiyati Fatharani, Aghnia Fauzi, Manyuk Ferdina, Muthia Ferry Virgiawan Firdaus Firdaus Freester, Joy Garsia, Dafit Ghofirin, Khoirul Ghofirin, Khoirul Gopal Adya Ariska Hadthya, Reinhart ' Hafiz Catur Anggoro Haji Gussafri Hendra Mulyadi Muslim Hugo Pratama Imam Suprayogi Irpan, Apdani Isdianto Isdianto Isdianto, Isdianto Ismeddyanto, Ismeddiyanto Joleha, Joleha Khairullah, M Khoirul Ghofirin Lita Darmayanti M Fadhil Nur M Rizal Zarkani M. Rizki E. Janrosl Malik Habibillah Mardani Sebayang Mathias Robianto Mega Putri Komalasari Meiki Prayudi Mintio, Reygi Raica Mohd Syarwan Mudjiatko Mudjiatko Mudjiatko, Mudjiatko Muhamad Yusa Muhammad Hadi Hasibuan Muhammad Khalilullah Muhammad Sukri Muhardi Nerrissa Arfiana Ongko, Andarsin Pratama, Rizki Putra, Jasman Adi Putri, Jeffilianti Tri Raeni Evanta Br. Tarigan Rahmad Sandi Rakhmad Ramadhan Randa Kurniawan Rellyadi Saputra Laset Reza Ahmad Fadhli Reza Ahmad Fadhli, Reza Ahmad Riandi, Daly Rianty Sihaloho Rinaldi Rinaldi Rinaldi Rinaldi Ririn Rindayani Robby Aulia Syuhada Rohman Rosyid Rosyid, Rohman S Siswanto Soewignjo Agus Nugroho Sovia Revina Sri Djuniati Suprasman Suprasman Sutikno, Sigit Sutopo Sutopo Syamsul Arifin Syarifah Sophia Vinka Zafani Vito Charly Wahyudi, Rioza Wendi Nofriandi Yenita Morena Yohanna Lilis H Yudha Andestian Yudha Andestian, Yudha Zahra, Vivi Widia Zahri, Rifqi Zikron Hirvan