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All Journal Jurnal Teknik Mesin Jurnal Sains dan Teknologi Reaksi
Haqul Baramsyah
Universitas Syiah Kuala
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Materials Science & Nanotechnology Mechanical Engineering

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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
Co-Authors Deea Rizki Oziana Keefi Kienan Melya Gusnira Nilda Nurul Kamal Pocut Nurul Alam T. Zulfikar