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All Journal Jurnal Rekayasa Sipil JURNAL SUMBER DAYA AIR Jurnal Teknik Sipil
Zevri, Asril
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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Studi Potensi Kapasitas Tampungan Embung Simarubak Ubak Di Kabupaten Humbang Hasundutan Zevri, Asril
Jurnal Rekayasa Sipil Vol. 18 No. 1 (2022)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.18.1.42-51.2022

Abstract

Peningkatan jumlah penduduk dengan perubahan musim yang cukup esktrem di Kabupaten Humbang Hasundutan mengakibatkan jumlah ketersediaan air tidak terkendali dan sangat terbatas untuk memenuhi kebutuhan air baik itu kebutuhan air irigasi dan air baku. Salah satu solusi yang dilakukan yaitu dengan konservasi melalui pembangunan kolam tampungan atau embung. Potensi kolam tampungan embung yang dapat ditingkatkan salah satunya yaitu Embung Simarubak Ubak di Kecamatan Dolok Sanggul dikarenakan catchment area yang cukup luas dan elevasi topografi yang curam. Tujuan dari penelitian untuk menghitung potensi kapasitas tampungan Embung Simarubak Ubak berdasarkan simulasi antara jumlah ketersediaan air (inflow) dengan kebutuhan air (outflow). Pendekatan metodologi dilakukan secara kuantitatif dengan menghitung jumlah ketersediaan air (inflow) berdasarkan curah hujan bulanan, evapotranspirasi, debit andalan sedangkan kebutuhan air (outflow) dihitung untuk menentukan kebutuhan air irigasi dan air baku. Simulasi kapasitas tampungan dianalisa dengan metode analitis numerik antara jumlah inflow dan outflow dalam kurun waktu satu tahun. Hasil analisa simulasi kapasitas tampungan Embung Simarubak Ubak yaitu 93,394.77 m3 dapat memenuhi kebutuhan air baku penduduk sebanyak 1623 jiwa dengan luas daerah irigasi potensial seluas 94.51 Ha.
Pemodelan Daerah Genangan Banjir Ekstrem Bendung Sungai Piam Kabupaten Langkat Provinsi Sumatera Utara Zevri, Asril
JURNAL SUMBER DAYA AIR Vol 21, No 1 (2025)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v21i1.915

Abstract

The construction of the Piam River weir is one of the efforts to support food security for the community, especially in Langkat Regency. Increased water levels in the rainy season with high intensity and long duration can cause rapid changes in the return flow with large volumes in the upper reaches of the river. Changes in the return flow can cause flooding in the river plain, resulting in a risk of loss to the community. One of the initial nonstructural efforts in flood mitigation is to delineate flood inundation areas through hydraulic simulation modelling based on the 100-year return period maximum flood discharge, longitudinal and transverse river profiles, and weir profiles. Modelling simulations were carried out using HEC RAS Software in a 2-dimensional manner based on 100-year return period flood discharge data as boundary conditions upstream, DEMNAS as a base map of the river geometry profile, and weir dimensions as boundary conditions downstream. The results of modeling the flood inundation area with a 100-year return period flood discharge of 239.66 m3/det show that the maximum potential flood water level reaches 3 m inundating the plain area up to 500 m from the river bank. The flood inundation area that occurs reaches 390.21 ha so that flood control efforts are needed by building embankments and normalizing the river upstream of the weir.
KAJIAN KAPASITAS TAMPUNGAN AIR EMBUNG BOLON PARANGINAN SELATAN KECAMATAN MUARA KABUPATEN TAPANULI UTARA Zevri, Asril
JURNAL TEKNIK SIPIL Vol 13, No 2 (2024): Volume 13 Nomor 2 November 2024
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jts.v13i2.39635

Abstract

this study aims to analyze the volume of the storage capacity of the Bolon Paranginan Selatan storage as a solution to meet the water needs of both irrigation and raw water due to the increase in population and the need for food in Muara District, North Tapanuli Regency. The study was conducted in the Bolon Paranginan Selatan storage with the water source coming from rainfall that flows within the catchment area of the storage. The method approach is carried out quantitatively based on the simulation of the storage volume capacity between inflow and outflow. The research methodology is carried out by analyzing monthly rainfall, monthly dependable discharge with a probability of 80%, irrigation water demand discharge, population projections, raw water demand discharge, and numerical analytical simulation of storage capacity. The results showed the large volume of storage capacity of the Bolon Paranginan Selatan is 12.034,71 m3 with the height of 3 m from the bottom of the storage for the utilization of raw water needs of 6768 people and the potential area of irrigation area reaching 30,671 Ha with an increase in cropping patterns to twice the planting period.
ANALISIS TINGGI MUKA AIR BANJIR DAS BELAWAN DENGAN MENGGUNAKAN SOFTWARE HECRAS Zevri, Asril
JURNAL TEKNIK SIPIL Vol 7, No 1 (2018): Volume 7, Nomor 1, Mei 2018
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jts.v7i1.8382

Abstract

Abstract: Belawan River Basin is one of the watershed, which currently change the land use because of the increasing population and industrial development. Rainfall with high intensity can cause rapid runoff, causing flood around the plains of the river cross section. The purpose of this research is to determine the flood water level of Belawan Watershed and flood discharge return period. Scope of activity in this research is analyzing daily rainfall Belawan watershed with the flood-discharge return period. Scope of activity in this research is analyzing maximum daily rainfall Belawan Watershed, and simulating flood water level with HECRAS. The result of the study shows that the potency of Belawan watershed flood water level is caused by flood discharge at 25 to 100 years especially in the middle to downstream of river cross section that is between 0.7 m and 3.3 m.Keywords: Flood Discharge, Flood Level, Belawan Watershed, Software HECRAS.Abstrak: Daerah Aliran Sungai Belawan adalah salah satu DAS yang pada saat ini mengalami perubahan tata guna lahan seiring bertambahnya jumlah penduduk dan perkembangan industri. Curah hujan yang tinggi dapat mengakibatkan limpasan sehingga menimbulkan tinggi muka air banjir di sekitar dataran penampang sungai. Tujuan dari penelitian ini adalah untuk mensimulasi tinggi muka air banjir DAS Belawan dengan debit banjir periode kala ulangnya. Lingkup kegiatan dalam penelitian ini yaitu menganalisa curah hujan harian maksimum rata-rata DAS Belawan dan menganalisa debit banjir kala ulang 2 sampai dengan 100 tahun, mensimulasi tinggi muka air banjir dengan HECRAS. Hasil studi menunjukan potensi tinggi muka air banjir DAS Belawan terjadi akibat debit banjir periode kala ulang 25 sampai dengan 100 tahun khususnya di bagian tengah sampai hilir penampang sungai yaitu berkisar antara 0.7 m sampai dengan 3.3 m.Kata kunci: Debit banjir, Tinggi Banjir, DAS Belawan, Software HECRAS.
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