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All Journal JURNAL PERTAMBANGAN Media Ilmiah Teknik Sipil STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering G-Tech : Jurnal Teknologi Terapan Jurnal Teknika : Jurnal Teoritis dan Terapan Bidang Keteknikan Indonesian Community Journal Jurnal Riset Teknik Pertambangan Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Cerdika: Jurnal Ilmiah Indonesia Innovative: Journal Of Social Science Research Jurnal Teknik Pertambangan (JTP) Diteksi : Jurnal Pengabdian Kepada Masyarakat Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Jurnal Teknologi Sumberdaya Mineral Jurnal Riset dan Pengabdian Interdisipliner
Noveriady
Universitas Palangka Raya
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Analisis Fragmentasi Hasil Peledakan Terhadap Pembongkaran Overburden Pada PIT 4 Middle di PT. Victor Dua Tiga Mega, Kalimantan Tengah Geraldho T. Simatupang; Noveriady Noveriady; Dody A. K. Wijaya
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 4 No. 2 (2026): Mei: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v4i2.1363

Abstract

Blasting is a critical method for overburden removal in open-pit coal mines, where fragmentation quality directly impacts loading efficiency and operational costs. This study aims to analyze the actual fragmentation resulting from overburden blasting at Pit 4 Middle of PT. Victor Dua Tiga Mega, Central Kalimantan, to predict fragmentation using the Kuz-Ram model, and to evaluate the conformity of both results against the company standard (boulder size ≤144.6 cm or ≥50 cm for analysis). The research employed a quantitative comparative method. Primary data included blasting geometry and photographs of muck piles from 10 blasting events, which were analyzed using WipFrag software to obtain actual fragmentation distribution. Secondary data comprised rock characteristics and explosive properties for Kuz-Ram prediction input. The results showed significant variation in actual boulder percentage (≥50 cm), ranging from 6.19% to 32.91% with an average of 16.05% (medium category). Statistical analysis revealed a very weak negative correlation (r = -0.21) between powder factor (PF) and boulder percentage, indicating that PF is not the dominant factor within the consistent application range (0.21-0.23 kg/bcm). Comparison with Kuz-Ram predictions showed that the model consistently over-predicted coarse material, with an average difference of +25.21%, suggesting the need for rock factor (A) recalibration. It is concluded that the blasting results are inconsistent, strongly influenced by uncontrollable factors such as geological conditions. Recommendations include geometri evaluation, particularly burden and spacing, and calibration of the Kuz-Ram model for more accurate future predictions.
Co-Authors Aftri Sa Putra Alexander Sinaga Alvionyta, Agnes Angelina Butarbutar, Fani Anisa Arini Putri, Desti Asri Fridtriyanda Aulia, Syarifah Azman, M. Khairul Betrio, Prayoga L. Betwin, Agre Deddy Nan Setya Putra Tanggara Deddy Tanggara Dedy Jupiter Sihombing Djanas Usup, Hepryandi L. Dody A. K. Wijaya Dody Ariyantho Kusma Wijaya Dody Aryantho Kusma , Wijaya Eka Taufiqur Rahman Erlangga Eka Wijaya Fahrul Indrajaya Febriani, Nia Ferdinandus Ferdinandus Ferdinandus Ferdinandus, Ferdinandus Fidayanti, Neny Gaol, Bintang B. T Lumban Geraldho T. Simatupang Grace Any Pasaribu Grunadi, Devin Tesario Hairi, Adria Hendrik Brianto Hepryandi L. Dj. Usup I Putu Putrawiyanta Immanuel Nababan Inso, Yos David Iqramina Sista Dewi Irga Loti Rante Irga loti Rante L., Prayoga Betrio Luwyk Djanas Usup, Hepryandi Marsel, Marsel Martua Risa Munthe Matius Yosefhin Meka, Lesly Martha Cecylia Mindo Tiorida Panjaitan Nababan, Bona Fransisko Nainggolan, Willy Kusuma Nasrullah Nasrullah Neny Sukmawatie Novalisae Nuansa Mare Apui Ganang P. C. Ishudi Pasaribu, Aldo Radot Hamonangan Prasetyo, Mikhael Dendi Purba, Aron Saputra, Rafiq Aldi Simamarta, Jhonatan G Sirait, Josua Sista Dewi, Iqramina Sri Rahmawati Sukmawatie, Neny Tumanggor, Ronal Berkat Usup, Hepryandi Luwyk Djanas Utama, Restu Virgiyanti, Lisa Wardani, Riana Sri Wijaya, Dody Ariyantho Kusma Wilmar Gabriel Mardongan Sinaga Wiryanto, Yustinus Hendra Yossa Yonathan Hutajulu Yulius Kahanjak Yunida Iasahnia Yunida Iashania Yunitae Kristianie Yusias Andri