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All Journal Jurnal Teknik Mesin Journal of Science and Engineering Jurnal Sains dan Teknologi Reaksi
Haqul Baramsyah
Universitas Syiah Kuala
Arts Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Pengaruh Penerapan Metode Ripping pada Penambangan Batubara Terhadap Produktivitas Crushing Plant (Studi Kasus: PT Mifa Bersaudara, Aceh Barat) Haqul Baramsyah; T. Zulfikar; Nurul Kamal; Melya Gusnira Nilda
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18245

Abstract

PT Mifa Bersaudara is a coal mining company that operates in Meulaboh, Aceh Barat. The main activities are extracting coal from the ground, loading, hauling, and crushing the coal to a specific size. There are two crushing plants that currently running at the site, Fix Crusher 01 (FC01) and Fix Crusher 02 (FC02). The production target for these crushers are 550 tons/hours and 450 tons/hours, respectively. However, the crushers could not meet the target. The main problem is the number of boulder materials from mining front almost 8.22 %, exceeding the optimum percentage of crusher’s input. In order to fix this matter, the application of ripping method in mining the coal is needed. This method utilizes Bulldozer CAT D8R, equipped with ripper, to break down the coal seam. Based on the calculation, this method could decrease the percentage of boulder materials from 8.22% to 3.04%. It enhances the productivity of excavator from 229.71 tons/hours to 284.05 tons/hours. Then, the productivity of the crushers also increase from 545 to 552 tons/hours for FC01 and from 347 to 452 tons/hours for FC02. Therefore, the application of ripping method in excavating the coal seam could increase the productivity of coal crushing plant.   
ANALISIS SPASIAL TINGKAT BAHAYA TANAH LONGSOR DI KABUPATEN ACEH TENGGARA MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS Haqul Baramsyah; Keefi Kienan; Deea Rizki Oziana; Pocut Nurul Alam
Jurnal Sains dan Teknologi Reaksi Vol 24, No 01 (2026): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v24i01.9789

Abstract

Kabupaten Aceh Tenggara, located within the Leuser Ecosystem, carries a high risk of hydrometeorological disasters. This study aims to map landslide hazard level zonation using the Ministry of Agriculture, Forestry and Fisheries (MAFF)-Japan through Geographic Information System (GIS) platform. The parameters used include rainfall, land use, slope inclination, soil type, geological type, and landform. Analysis was conducted using overlay and scoring techniques. The results show that Southeast Aceh Regency has three hazard level categories: low (7.19% or 306 km²), moderate (89.78% or 3,806 km²), and high (3.03% or 130 km²). Areas with a high hazard level are dominated by forest areas with steep slopes (15%) and high rainfall (3,500 mm/year). This mapping is expected to serve as a foundation for spatial planning policies and disaster mitigation in the region. Key words: Landslides, MAFF-Japan Method, Aceh Tenggara, Geographic Information System, Mitigation
PENGARUH TOTAL RESISTANCE TERHADAP PRODUKTIVITAS DAN SPEED UNIT ALAT ANGKUT DI PIT 4 PT BARA ENERGI LESTARI Mila Mulidar; Yoessi Oktarini; Hendra Harisman; Moehammad Ediyan Raza Karmel; Zati Hulwani; Haqul Baramsyah; Firman
Journal of Science and Engineering Vol 9 No 2 (2026): Journal of Science and Engineering (JOSAE)
Publisher : Fakultas Teknik Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/josae.v9i2.12927

Abstract

PT Bara Energi Lestari merupakan perusahaan tambang batubara di Kabupaten Nagan Raya, Aceh yang menerapkan metode tambang terbuka (open pit) dengan target kecepatan alat angkut minimum 20 km/jam dan produktivitas 147 BCM/jam per kilometer. Penelitian ini bertujuan mengevaluasi geometri jalan angkut berdasarkan Kepmen ESDM Nomor 1827K/30/MEM/2018 serta nilai total resistance untuk meningkatkan kecepatan dan produktivitas alat angkut. Metode penelitian menggunakan analisis kuantitatif melalui perbandingan kondisi sebelum dan sesudah perbaikan jalan serta simulasi produktivitas dan cycle time pada jarak 1 km. Hasil penelitian menunjukkan adanya ketidaksesuaian geometri jalan berupa dua segmen overgrade pada ruas coal getting, 25 segmen lebar jalan yang belum memenuhi standar pada Overburden 1, dan lima segmen pada Overburden 2. Nilai total resistance masing-masing sebesar 3.970,55 lb, 11.400,23 lb, dan 7.662,25 lb. Kecepatan aktual pada ruas coal getting telah memenuhi target (22,46 km/jam), sedangkan Overburden 1 (18,96 km/jam) dan Overburden 2 (19,96 km/jam) belum memenuhi standar perusahaan. Setelah perbaikan jalan pada Overburden 1, kecepatan meningkat menjadi 21,97 km/jam dan produktivitas mencapai 92,87 BCM/jam.
Co-Authors Deea Rizki Oziana Firman Hendra Harisman Keefi Kienan Melya Gusnira Nilda Mila Mulidar Moehammad Ediyan Raza Karmel Nurul Kamal Pocut Nurul Alam T. Zulfikar Yoessi Oktarini Zati Hulwani