relation: https://repository.itny.ac.id/id/eprint/5395/
title: Analisis fragmentasi hasil peledakan dengan metode kuz-ram dan split dekstop di PT Dahana site PT Bara Prima Patama Kecamatan Kemuning,  Kabupaten Indragiri Hilir, Provinsi Riau
creator: JULIANA, SANTI
subject: TN Mining engineering. Metallurgy
description: PT Bara Prima Pratama is a mining company that uses the blasting method to dismantle overburden so that the material can be easily carried to the next process. The problem that occurred at PT Bara Prima Pratama was the result of fragmentation from the blasting that had been carried out not in accordance with the size standards set by the company. This study aims to analyze the results of fragmentation in the field and compare the results of the distribution of fragmentation to produce recommendations for blasting geometry. The targeted fragmentation size is 1/3 of the 180 cm Doozan PC 500 excavator bucket, which is ≤ 60 cm in size with a minimum percentage of 80%. Based on the actual geometry with a burden of 4.78 m, spacing of 5.76 m, depth of blast holes 6.56 m, Powder Charge 3.06 m, Powder Factor 0.17 kg/m3 and stemming 3.50 m, fragmentation analysis was carried out using the photography using split desktop software v4.0 and Kuz-Ram calculations. Fragmentation analysis with split desktop obtained an average percentage of 47.31%. While the analysis of fragmentation according to Kuz-Ram calculations obtained an average percentage of 50,54%, which means that the resulting fragmentation size percentage is not optimum enough. Based on the calculation of the fragmentation distribution that does not meet the company's target, it is recommended that the proposed geometric design based on the R.L. Ash. The proposed blasting geometry is 3.23 meters burden, 4.53 meters spacing, 3.07 meters stemming, 6.68 meters depth of blast hole, 3.60 meters of filled column length, 5 inch diameter of blast hole, and powder factor 0.37. kg/m3 the final result of rock fragmentation with a size of ≤ 60 cm is 81.05% with a boulder percentage of 18.95%. According to ICI Explosive produces a blasting geometry with a burden of 3.54 meters, spacing of 5.02 meters, stemming of 3.05 meters, depth of the blast hole 7.62 meters, column length of 4.57 meters, diameter of the hole 5 inches, and powder factor 0.36 kg/m3 resulted in the final result of rock fragmentation with a size of ≤ 60 cm of 81.11% with a boulder percentage of 18.89%. Meanwhile, according to Andreson, it produces a blasting geometry with 3.20 meters of burden, 5 meters of spacing, 3.01 meters of stemming, 6.57 meters of blast hole depth, 3.56 meters of filled column length, 5 inch diameter of blast holes, and a powder factor of 0. 36 kg/m3 resulted in the final result of rock fragmentation with a size of ≤ 60 cm of 82.06% with a boulder percentage of 17.94%. Which with the three blasting geometries means that it can meet the percentage targets or existing company targets = PT Bara Prima Pratama  merupakan perusahaan pertambangan yang menggunakan metode peledakan untuk membongkar overburden agar material dapat mudah dilakukan ke proses selanjutnya. Permasalahan yang terjadi di PT Bara Prima Pratama adalah hasil fragmentasi dari peledakan yang telah dilakukan tidak sesuai dengan standar ukuran yang telah ditentukan oleh perusahaan. Penelitian ini bertujuan untuk                        menganalisis hasil fragmentasi di lapangan dan melakukan perbandingan hasil distribusi fragmentasi hingga menghasilkan usulan rekomendasi geometri peledakan. Fragmentasi ditargetkan berukuran 1/3 bucket excavator Doozan PC 500 yang berukuran 180 cm yaitu berukuran ≤ 60 cm dengan persentase minamal 80%. Berdasarkan geometri aktual dengan burden 4,78 m, spasi 5,76 m, kedalaman lubang ledak 6,56 m, Powder Charge 3,06 m, Powder Factor 0,17 kg/m3 dan stemming 3,50 m dilakukan analisis fragmentasi dengan metode photograpy menggunakan software split desktop v4.0 dan perhitungan KuzRam. Analisis fragmentasi dengan split desktop didapatkan persentase rata-rata sebesar 47,31%. Sedangkan analisis fragmentasi menurut perhitungan Kuz-Ram didapatkan persentase rata-rata sebesar 50,54% yang artinya persentase ukuran fragmentasi yang dihasilkan belum cukup optimum. Berdasarkan perhitungan distribusi fragmentasi yang tidak memenuhi target perusahaan, maka direkomendasikan rancangan geometri usulan berdasarkan metode R.L. Ash. Geometri peledakan yang diusulkan adalah dengan burden 3,23 meter, spasi 4.53 meter, stemming 3,07 meter, kedalaman lubang ledak 6,68 meter, Panjang kolom isian 3,60 meter, diameter lubang ledak 5 inch, dan powder factor 0,37 kg/m3 didapatkan hasil akhir fragmentasi batuan dengan ukuran ≤ 60 cm sebesar 81,05 % dengan persentase boulder sebesar 18,95 %. Menurut ICI Explosive menghasilkan geometri peledakan dengan burden 3,54 meter, spasi 5,02 meter, stemming 3,05 meter, kedalaman lubang ledak 7,62 meter, Panjang kolom isian 4,57 meter, diameter lubang ledak 5 inch, dan powder factor 0,36 kg/m3 didapatkan hasil akhir fragmentasi batuan dengan ukuran ≤ 60 cm sebesar 81,11 %  dengan persentase boulder sebesar 18,89%. Sedangkan menurut  Andreson menghasilkan geometri peledakan dengan burden 3,20 meter, spasi 5 meter, stemming 3,01 meter, kedalaman lubang ledak 6,57 meter, Panjang kolom isian 3,56 meter, diameter lubang ledak 5 inch, dan powder factor 0,36 kg/m3 didapatkan hasil akhir fragmentasi batuan dengan ukuran ≤ 60 cm sebesar 82,06 %  dengan persentase boulder sebesar 17,94 %. Yang mana dengan ketiga geometri peledakan tersebut artinya dapat memenuhi target persentasi ataupun target perusahaan yang ada.
date: 2023-01
type: Thesis
type: NonPeerReviewed
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identifier: https://repository.itny.ac.id/id/eprint/5395/1/COVER_merged%20%2812%29.pdf
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identifier: https://repository.itny.ac.id/id/eprint/5395/8/710018115_SANTII%20JULIANA_SKRIPSI.pdf
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identifier: https://repository.itny.ac.id/id/eprint/5395/9/710018115_SANTI%20JULIANA_JURNAL.pdf
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identifier: https://repository.itny.ac.id/id/eprint/5395/10/DAFTAR%20PUSTAKA.pdf
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identifier: https://repository.itny.ac.id/id/eprint/5395/11/LAMPIRAN.pdf
identifier:   JULIANA, SANTI  (2023) Analisis fragmentasi hasil peledakan dengan metode kuz-ram dan split dekstop di PT Dahana site PT Bara Prima Patama Kecamatan Kemuning, Kabupaten Indragiri Hilir, Provinsi Riau.  Other thesis, Institut Teknologi Nasional Yogyakarta.