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Amiruddin, Aswar
Department Of Civil Engineering, Universitas Borneo Tarakan, Indonesia
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Analisis Karakteristik Dan Laju Angkutan Sedimen Total Saluran Rawasari Indah Kota Tarakan Rahmat Faizal; Jean Timoti; Aswar Amiruddin
Borneo Engineering : Jurnal Teknik Sipil Volume 7 Nomor 1 Tahun 2023
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v7i1.4149

Abstract

Embung as one of the waterworks that serves as a reservoir for water, Embung Rawasari Indah is one of the 5 reservoirs in Tarakan yann city currently experiencing silting due to sedimentation process, which causes the water discharge flowing towards the reservoir to be not optimal. The purpose of this study was to determine the characteristics and discharge of total sediment transport in Rawasari indah Channel and obtain a comparison of three methods of calculating the total sediment transport in Rawasari Indah Channel. Based on the results of laboratory tests sediment classification is dominated by fine sand, very fine sand and medium sand. The results of the study obtained the average value of sediment transport discharge on Engelund and Hansen's method is 1.382998513 tons/year, the method is 15.88046241 tons/year, Laursen method is 2.000124533 tons / year. Based on the calculation results with the largest value, the method chosen as a benchmark in the calculation of sediment transport.
Neraca Air Sungai Karang Anyar Sebagai Sumber Air Baku IPA Kampung Bugis Rosmalia Handayani; Sutika Surya Indah Pertami; Aswar Amiruddin
Borneo Engineering : Jurnal Teknik Sipil Volume 7 Nomor 2 Tahun 2023
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v7i2.4768

Abstract

IPA Kampung Bugis service area includes West Tarakan Sub-district and Central Tarakan Sub-district. These two sub-districts are the ones with the highest population density in the city of Tarakan, so in terms of water supply, it is necessary to carefully consider to avoid water deficits if there is no rainfall in Tarakan. This study aims to calculate the water balance of the Karang Anyar River as the raw water source for the IPA Kampung Bugis. The method used for availability calculations is the NRECA method. From the analysis of the reliable discharge Q90 of the Karang Anyar River using the NRECA method, an average Q90 reliable discharge of 55 liters/second is obtained, while based on the analysis of water needs in 2031, it is 295,852 liters/second. These results indicate that the Karang Anyar River is unable to meet the water needs in the IPA Kampung Bugis service area in the city of Tarakan
Angkutan Sedimen Total Saluran Pembawa Embung Rawasari menggunakan Metode Empiris dan Software HEC-RAS 6.0 Aswar Amiruddin; Refina Fatriza; Rahmat Faizal
Borneo Engineering : Jurnal Teknik Sipil Volume 7 Nomor 3 Tahun 2023
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v7i3.4787

Abstract

The need for water will continue to increase, while the availability of water is limited; therefore, the provision of water must be pursued both by the government and independently. Rawasari Reservoir is one of the reservoirs in Tarakan City with a relatively stable volume and an effective storage capacity of 112,982 m3. The water source of Rawasari Reservoir comes from a channel that is a tributary experiencing sedimentation due to the sedimentation process. Based on this, the research team was interested in calculating sediment transport in the conveyance channel of Rawasari Reservoir using both empirical methods and the HEC-RAS 6.0 software. The methods used in this research are empirical using the Engelund Hansen and Laursen equations, as well as the use of HEC-RAS 6.0 software. Based on the analysis results, the sediment transport rate in the conveyance channel of Rawasari Reservoir calculated using the empirical method at STA 0+025 is 1,6427 x 10-9 ton/s for the Engelund Hansen method and 2,9898 x 10-9 ton/s for the Laursen method. The simulation of sediment transport in the bed of the conveyance channel of Rawasari Reservoir using the HEC-RAS 6.0 sediment transport model at STA 0+025 is 4,61x10-5 ton/s with the Engelund Hansen sediment transport function and 0,000306 ton/s using the Laursen sediment transport function.
A Study on the Effects of Climate Change on the Availability of Water and Kalangkangan Watersheds Yassir Arafat; I Gede Tunas; Aswar Amiruddin
Tadulako Science and Technology Journal Vol. 1 No. 1 (2020): TADULAKO SCIENCE AND TECHNOLOGY JOURNAL
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v1i1.15059

Abstract

Climate change has a huge impact on the availability of water resources. Based on the case, this research is deemed necessary to do. Water availability is an essential issue related to climate change. The most perceived impacts due to climate change are climate anomalies; the rainy season lasts shorter with increasing intensity and the dry season lasts longer than usual conditions. The body of water cannot accommodate high-intensity rainwater, so it flows quickly into the sea. Relatively, a long dry season results in drought. The vulnerability of the availability of water sources in the Kalangkangan watershed, Tolitoli Regency was indicated through the reduction in river discharge. This changes in discharge had the potential to be difficult in meeting the needs of irrigation or clean water. If there is no attempt to protect and repair the water sources, it is believed that the reduction in discharge will continue until it hits a critical condition. The availability of water from the rain - discharge simulation model in the Kalangkangan watershed for wet conditions (Q20%) had a maximum discharge of 20.62 m³ / sec in June (decade II), and an average discharge of 13.59 m³ / sec. For normal conditions (Q50%) the maximum discharge was 19.47 m³ / sec in June (decade I), the minimum discharge was 5.35 m³ / sec in June (decade I) and the average discharge was 11.13 m³ / sec. For dry conditions (Q80%), the minimum discharge was 5.18 m³ / sec in May (decade I) and the average discharge was 9.05 m³ / sec
ANALISIS KETERSEDIAAN DAN KEBUTUHAN AIR BAKU PADA EMBUNG SUNGAI BILAL KABUPATEN NUNUKAN MENGGUNAKAN METODE F.J. MOCK Nurdiansyah, Nurdiansyah; Faizal, Rahmat; Amiruddin, Aswar
Civil Engineering Scientific Journal Vol 2, No 2 (2023): Civil Engineering Scientific Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/cesj.v2i2.4169

Abstract

ABSTRACT : Due to population growth and the region's fast development, domestic and non- domestic water consumption has grown in Nunukan Regency. To meet the clean water demand, the government has built the Bilal River Reservoir, which initiated a study of the Bilal River Reservoir to be carried out to determine the reservoir's reliability in meeting the demand for clean water in line with population growth. This study analyzed water availability and the demand for raw water in the Bilal River Reservoir. In the analysis of water availability, the Modified Penman approach is used to analyze evapotranspiration, while the F.J. Mock method was used to study effective debit. From the analysis of raw water availability using the F.J. Mock with 90% reliability, The biggest Q90 was in January at 119 liters/sec, and the smallest was in December at 15 liters/sec. As well as the results of the largest water demand analysis in 2031 in the West Nunukan Village zone of 19,947 liters/sec and the smallest in 2022 in the Central Nunukan Village zone of 6,249 l/s.Keywords: Bilal River Reservoir, Water Availability, Water Demand, F.J. Method Mock ABSTRAK: Meningkatnya aktivitas penduduk ditambah dengan berkembangnya pembangunan yang semakin pesat menyebabkan kebutuhan air untuk domestik maupun non domestik yang meningkat di Kabuapten Nunukan. Dalam rangka upaya pemenuhan kebutuhan air bersih, pemerintah Kabupaten Nunukan membangun Embung Sungai Bilal. Kajian terhadap Embung Sungai Bilal perlu dilakukan untuk mengetahui keandalan embung dalam memenuhi kebutuhan air bersih sejalan dengan pertumbuhan penduduk. Penelitian ini bertujuan untuk menganalisis ketersediaan air dan kebutuhan air baku pada Embung Sungai Bilal. Pada analisis ketersediaan air perhitungan Evapotranspirasi menggunakan metode Penman Modifikasi dan Debit Efektif menggunakan metode F.J. Mock. Dari hasil analisis ketersediaan air baku dengan menggunakan metode F.J. Mock dengan keandalan 90%. Q90 terbesar pada bulan Januari sebesar 119 ltr/dtk terkecil pada bulan Desember sebesar 15 ltr/dtk. Serta hasil analisis kebutuhan air terbesar pada tahun 2031 zona Kelurahan Nunukan Barat sebesar 19,947 lt/dtk, terkecil pada tahun 2022 zona Kelurahan Nunukan Tengah sebesar 6,249 lt/dtk.Kata kunci: Embung Sungai Bilal, Ketersediaan Air, Kebutuhan Air, Metode F.J. Mock
ANALISIS DEBIT BANJIR DRAINASE JALAN PATTIMURA KOTA TARAKAN DAN PENGARUHNYA TERHADAP KAPASITAS SALURAN Ruslan, Ruslan; Amiruddin, Aswar; Faizal, Rahmat
Civil Engineering Scientific Journal Vol 3, No 1 (2024): Civil Engineering Scientific Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/cesj.v3i1.5041

Abstract

ABSTRACT: Tarakan City has a large problem of land conversion which results in a decrease in the infiltration area. Jalan Pattimura, Pamusian Kelurahan is one of the points in Central Tarakan District that has the potential for flooding due to high rainfall intensity. The purpose of this study is to calculate the flood discharge Q25, Q50 and Q100 and to evaluate the channel capacity against the flood discharge. The method used to calculate the discharge is the modified rational method. The design flood discharge with a return period of 25, 50 and 100 years in the catchment area of drainage channel 1 is calculated using the modified rational method is 0,112 m3/sec for Q25, 0,115 m3/sec for Q50 and 0,117 m3/sec for Q100. Furthermore, the design flood discharge in the catchment area of drainage channel 2 is calculated using the modified rational method is 0,111 m3/sec for Q25, 0,113 m3/sec for Q50 and 0,115 m3/sec for Q100. Based on the evaluation of the existing channel conditions of Jalan Pattimura, Pamusian Kelurahan, Tarakan City, it was obtained that the existing channel capacity with the existing channel height is able to pass a discharge of 0,366 m3/sec for Drainage Channel 1 and 0,312 m3/sec for Drainage Channel 2 so it can be concluded that the current channel is still able to pass the discharge Q25, Q50 and Q100 years. Keywords: Drainage, flood discharge, channel capacity ABSTRAK: Kota Tarakan memiliki masalah alih fungsi lahan yang besar yang berakibat pada berkurangnya daerah resapan. Jalan Pattimura, Kelurahan Pamusian merupakan salah titik di Kecamatan Tarakan Tengah yang memiliki potensi banjir akibat intensitas hujan yang tinggi. Tujuan penelitian ini untuk menghitung debit banjir Q25, Q50 dan Q100 dan melakukan evaluasi kapasitas saluran terhadap debit banjir. Metode yang digunakan untuk menghitung debit adalah rasional modifikasi. Debit banjir rencana periode ulang 25, 50 dan 100 tahun pada daerah tangkapan saluran drainase 1 dihitung menggunakan metode rasional modifikasi adalah 0,112  m3/dtk untuk Q25, 0,115 m3/dtk untuk Q50 dan 0,117 m3/dtk untuk Q100. Selanjutnya, debit banjir rencana pada daerah tangkapan saluran drainase 2 dihitung menggunakan metode rasional modifikasi rasional adalah 0,111  m3/dtk untuk Q25, 0,113 m3/dtk untuk Q50 dan 0,115 m3/dtk untuk Q100. Berdasarkan evaluasi terhadap kondisi saluran eksisting Jalan Pattimura, Kelurahan Pamusian, Kota Tarakan diperoleh kapasitas saluran eksisting dengan tinggi saluran yang ada saat mampu melewatkan debit 0,366 m3/dtk untuk Saluran Drainase 1 dan 0,312 m3/dtk untuk Saluran Drainase 2 sehingga dapat disimpulkan saluran yang saat ini masih mampu melewatkan debit Q25, Q50 dan Q100 tahun.Kata kunci: Drainase, debit banjir, kapasitas saluran
ANALISIS KEBUTUHAN DAN KETERSEDIAAN AIR BAKU EMBUNG BOLONG KABUPATEN NUNUKAN MENGGUNAKAN METODE NRECA Faizal, Rahmat; Firdaus, Wildan; Amiruddin, Aswar
Civil Engineering Scientific Journal Vol 2, No 1 (2023): Civil Engineering Scientific Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/cesj.v2i1.4146

Abstract

ABSTRACT: Raw water in Embung Bolong, Nunukan Regency, is currently experiencing a decline or depreciation due to low rainfall in Nunukan Regency, so it is necessary to conduct research on the availability of raw water, including the use of environmental conditions in Embung Bolong. Calculation of evapotranspiration using the Penman Modification and Effective Discharge method using the NRECA method includes data from related agencies in the form of rainfall data, air humidity, air temperature, wind speed, and length of sunlight. Based on the results of the analysis, the total water requirement for 2031 is 4.229 lt/s for the West Nunukan Village zone, 22.633 lt/s for the Central Nunukan Urban Village zone, 20.228 lt/s for the East Nunukan Urban Village zone, 6.475 lt/s for the South Nunukan Urban Village zone , 6,304 lt/s for the Selisun Village zone and the mainstay discharge Q90 reviewed from the last 10 years from 2012 to 2021, the largest water availability occurs in June, which is 50,645 lt/s and the smallest water availability occurs in April, namely of 0.224 l/sec.Keywords: Embung Bolong, Nursery IPA, Water Demand, Water Availability, NRECA MethodABSTRAK: Air baku di Embung Bolong Kabupaten Nunukan kini mengalami penurunan atau penyusutan yang disebabkan rendahnya curah hujan di Kabupaten Nunukan sehingga perlu dilakukan penelitian mengenai ketersediaan air baku termasuk pemanfaatan kondisi lingkungan di Embung Bolong. Perhitungan evapotranspirasi menggunakan metode Penman Modifikasi dan Debit Efektif dengan menggunakan metode NRECA meliputi data dari instansi terkait berupa data curah hujan, kelembaban udara, suhu udara kecepatan angin, dan lama penyinaran matahari. Berdasarkan hasil analisis, diperoleh jumlah kebutuhan ait tahun 2031 sebesar 4,229 lt/dtk untuk zona Kelurahan Nunukan Barat, 22,633 lt/dtk untuk zona Kelurahan Nunukan Tengah, 20,228 lt/dtk untuk zona Kelurahan Nunukan Timur, 6,475 lt/dtk untuk zona Kelurahan Nunukan Selatan, 6,304 lt/dtk untuk zona Kelurahan Selisun serta debit andalan Q90 yang ditinjau dari 10 tahun terakhir terhitung dari tahun 2012 sampai dengan tahun 2021 diperoleh ketersediaan air terbesar terjadi pada bulan Juni yaitu sebesar 50,645 lt/dtk dan ketersediaan air terkecil terjadi pada bulan April yaitu sebesar 0,224 lt/dtk.Kata kunci: Embung Bolong, IPA Persemaian, Kebutuhan Air, Ketersediaan Air, Metode NRECA
Studi Abu Sekam Padi Sebagai Bahan Subtitusi terhadap Beton Mutu Tinggi Halim, Zainal Arifin; Amiruddin, Aswar
Borneo Engineering : Jurnal Teknik Sipil Volume 8 Nomor 2 Tahun 2024
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v8i2.5245

Abstract

Concrete is one of the preferred materials for construction due to its easy application in terms of implementation methods, execution, and maintenance. One of the developments in concrete technology today is the use of waste materials such as industrial cement waste, agricultural waste, steel industry waste, and others. One agricultural waste that is being attempted to be utilized as an additive in concrete is rice husk ash (ASP), which is organic waste from the combustion process. The objective of this research is to calculate the optimal percentage of rice husk ash as a cement substitute and to determine the compressive and tensile strength values of concrete using rice husk ash at the optimal substitution percentage. To obtain the optimal percentage of rice husk ash as a substitute, an initial test was conducted by reducing the cement portion by 5%, 10%, 15%, and 20%. The optimal percentage obtained was 5.7723%. For the results of the compressive strength test and tensile strength test of concrete with the optimal percentage of rice husk ash, the values were 32.083 MPa and 3.081 MPa, respectively.
Kajian Parameter Hidrologi DAS Rawasari Kota Tarakan Menggunakan HEC-HMS Amiruddin, Aswar; Widiyanti, Aneza Ferdani
Jurnal Sains dan Teknologi Tadulako Vol 10 No 2 (2024): Agustus 2024
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jstt.v10i2.697

Abstract

Kota Tarakan merupakan kota pulau, sehingga dalam penyediaan air bersih mengandalkan sistem konservasi dengan membangun beberapa embung untuk menampung air saat musim hujan. Permasalahan saat ini yang terjadi di Kota Tarakan adalah meningkatnya pertambahan jumlah penduduk yang berpengaruh pada peningkatan alih fungsi lahan dan berkurangnya daya resap air pada setiap daerah tangkapan air di Tarakan. Diperlukan perencanaan yang didukung oleh studi awal terkait analisis hidrologi daerah tangkapan Embung Rawasari. Penelitian ini bertujuan mengkaji parameter hidrologi dan debit limpasan langsung pada daerah aliran sungai (DAS) Rawasari dengan periode ulang 10, 20 dan 50 tahun. Metode yang digunakan pada penelitian ini adalah menggunakan model HEC-HMS sebagai tools yang membantu mengalasis hujan limpasan. Berdasarkan simulasi HEC-HMS diperoleh beberapa parameter DAS seperti luas DAS sebesar 2.99 km2 dengan panjang sungai 1.4 km. Hasil lain yang diperoleh dengan menggunakan HEC-HMS ini adalah nilai debit aliran sebagai alihragam hujan menjadi aliran dimana debit puncak aliran yang diperoleh sebesar 2.672 m3/dtk untuk periode ulang 10 tahun, 2.885 m3/dtk periode ulang 20 tahun dan 2.987 m3/detik periode ulang 50 tahun
Studi Transformasi Gelombang Di Pesisir Timur Pulau Tarakan Dengan Metode Shore Protection Manual (SPM 1984) Untuk Rencana Awal Bangunan Pengaman Pantai Hidayat, Wahyu; Utomo, Edy; Amiruddin, Aswar
Borneo Engineering : Jurnal Teknik Sipil Volume 8 Nomor 3 Tahun 2024
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v8i3.5905

Abstract

Tarakan Island is a part of North Kalimantan Province. The coastline of Tarakan Island is long + 28 km. Some areas have sandy beaches that slope towards the sea. This area is known as Amal Beach. On the coast In Amal Baru, there has been damage to the coastline caused by abrasion with a level of damage reaching 66,67%, which was heavily damaged and 33,33% was moderately damaged. The rate of change in this coastline is classified as 2-5 m/year.. There is damage in the Amal Baru beach area caused by abrasion. Therefore, protection is needed along the Amal coast in the form of beach safety buildings. However, in planning coastal safety buildings. Sea waves are one of the important parameters that need to be taken into account. Direct collection of ocean wave data has a high level of technical difficulty and expensive operational costs. This can be overcome by conducting wave forecasting, so that you can find out wave characteristics such as height, direction and duration of the wave. In this research, the SPM (Shore Protection Manual) method was used to calculate wave forecasting based on wind data over a 10 year period obtained from ECMWF (European Center for Medium-Range Weather Forecasts). Data from forecasting results using the SPM method obtained a maximum wave height value of 2.10 meters with a period of 7,63 seconds which occurred in 2016. Meanwhile, the predicted wave height in the next 25 years using the Weibull method was 2,34 meters with a period of 7,74 seconds. The high value of breaking waves in the next 25 years is 1,69 meters and occurs at a depth of 4.03 meters with a wave incident angle of 28,90O.
Co-Authors Asta, Asta Awaludin Awaludin Awaludin, Awaludin Bagaskara, Johan Putra Bayu Kurniawan Dasar, Amry Edy Utomo, Edy Faizal, Rahmat Halim, Zainal Arifin Handayani, Rosmalia I Gede Tunas Ipayanti, Rantika Aulia Irianto Aras Irlan, Ade Okvianti Jean Timoti Jero Budi Darmayasa Kartina Kartina Kartina Khaerunnisa Khairunnisa Khairunnisa kustanrika, irma wirantina Moh Amin Muhamad Roem Muhammad Sofyan Nurdiansyah Nurdiansyah Rahmat Faizal Ramli Ramli Rasdi Rasdi, Rasdi Refina Fatriza Rosmalia Handayani Rr Mekar Ageng Kinasti Ruslan Ruslan Saparuddin Saparuddin Sukardi Nurdin Susilo, Yuly Desyana Sutika Surya Indah Pertami Teguh Hilmansyah Triyanti Anasiru Velizar Sujanes Wahyu Hidayat Widiyanti, Aneza Ferdani Wildan Firdaus Yassir Arafat Zunifa, Afara