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All Journal Jurnal Pertambangan PROMINE IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Himasapta JURNAL TEKNIK PATRA AKADEMIKA Jurnal Ekonomi, Manajemen, Akuntansi dan Keuangan Inovatif: Jurnal Ekononi, Manajemen, Akuntansi, Bisnis Digital dan Kewirausahaan Sinergi Polmed : Jurnal Ilmiah Teknik Mesin MINERAL Journal of Geology and Exploration
Edwin Harsiga
Program Studi Teknik Pertambangan, Fakultas Sains Dan Teknik, Universitas Bangka Belitung
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health

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Analisis Metode Perhitungan Kuantitas Batubara Di Stockpile ROM PT. XYZ: Analysis of Coal Quantity Calculations Methods in ROM Stockpile PT. XYZ Harsiga, Edwin; Hardianti, Siti; Hidayat, Ardhi Lufthansyah
MINERAL Vol 9 No 1 (2024): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v9i1.5547

Abstract

PT XYZ had a method called the on book method to determine the amount of coal tonnage in the ROM stockpile.. This method used the initial stock from the survey calculation resut at the beginning of each month, the incoming coal to the stockpile used truck count method, and the outgoing coal from stockpile used weighbridge calculation. PT XYZ used the survey calculation results at the beginning of the next month rather than on book method result to determine the difference. The Coal tonnages based on survey result data on April 2 was 34.225,454 tons. Whereas, for the on-book calculation, the stock at March 2 was 38.409,083 tons, the coal in 2 March - 2 April was 71.154 tons, and the coal out of 2 March - 2 April was 67.994,52 tons, so the final stock obtained was 41.568,56 tons. The difference from those two methods comparison was 7.343,11 tons. This research discover the factors causing the differences between two methods i.e. incompatible vessel capacity on the truck counts tonnage calculation, disorganized stockpile patterns, declining ROM stockpile base conditions, spilled material, total station tools and weighbridges which had not been calibrated yet.
Analysis of Differences in Overburden Volume Calculation Results Based on Survey and Truck Count Method at PT Bina Sarana Sukses Job Site Manambang Muara Enim Sihombing, Johanes Pauji; Harsiga, Edwin; Guskarnali, Guskarnali
Journal of Geology and Exploration Vol. 4 No. 2 (2025): Journal of Geology and Exploration, December 2025
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jge.v4i2.326

Abstract

PT Bina Sarana is a coal mining contractor located in Darmo village and Pulau Panggung village. Lawang Kidul district, Muara Enim regency, South Sumatera province. The calculation of overburden volume using survey and truck count method on May is a 16,394.177 BCM, percentage 11.57. The aim of this study is to determine the volume of overburden transported based on survey and truck count method, analyze the casual factor and reparation. This study use quantitative method, overburden production on June and July is 910,304.25 BCM and truck count is 975.984,86 BCM. The identification of problem conducted sampling test to know the casual capacity of vessel, CMT 96 is 23.26 BCM, CMT 106 is 25.30 BCM on June and CMT 96 is 23.21 BCM, CMT 106 is 24.87 BCM on July. The identification of problem used improving the calculation formula truck count, percentage routinely conducted sampling test to determine the actual capacity of vessel. The factor that influence of overburden volume known with survey and truck count method along June-July of 2024 are the discrepancy between actual load, the lack of bucket fill factor, the inaccurate of field survey data (inaccurate setting, tool centering, inaccuracy of detailed progress point). After the improvement, the result of overburden volume of truck count on June-July is 924,735.17 BCM, has a decrease in company’s calculation differences of 6.72 % to 1.5 % with the company determination 2.75 %.
Co-Authors A. A. Darmawan Aisyah Mey Ardiansyah Andini Puspita Rahayu Anna Amelia Louisa Ardhi Lufthansyah Hidayat Ariksa, Jeri Ayu Srimarta Delita Ega Andini Diana Purbasari Diana Purbasari eko indra novianto Franto Guskarnali, Guskarnali Harry Waristian Hidayat, Ardhi Lufthansyah Kadriadi, Kadriadi Lingga, Yesi Crystiyanti Hangelina Br Louisa, Anna Amelia Marwan Asof Marwan Asof maya Matofani Muhammad Dimas Thabrani Pebrianto, Rosihan Putri Virgania B. R. Pebrianto Rahmad Dani roby cahyadi Rosihan Pebrianto Rosihan Pebrianto S. Hardianti Saragi, Jandri Fan HT Sihombing, Johanes Pauji Silaban, Cindy Grestina Siti Hardianti Siti Hardianti Siti Hardianti, Siti Syamsul Komar Syarifudin Syarifudin Taufik Toha Trisna Perdana Waristian, Harry Yudi Setiawan Yunita Yunita