Article Per Year (5 Year)
p-Index From 2021 - 2026
1.745
P-Index
This Author published in this journals
All Journal INDONESIAN MINING PROFESSIONALS JOURNAL Jurnal Himasapta INTAN Jurnal Penelitian Tambang Journal of Sciencce Technology and Visual Culture
Arief, Muhammad Zaini
Program Studi Rekayasa Geologi, Fakultas Teknik, Universitas Lambung Mangkurat
Aerospace Engineering Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering

Published : 11 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 11 Documents
Search

 1   2 
Analisis Kestabilan Lereng Tumpukan Batubara ROM pada PT Adaro Indonesia Kabupaten Tabalong Kalimantan Selatan Arni, Akbar; Hakim, Romla Noor; Arief, Muhammad Zaini
Jurnal Himasapta Vol 10, No 3 (2025): Jurnal Himasapta Volume 10 Nomor 3 Tahun 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jhs.v10i3.18169

Abstract

Dalam kegiatan pertambangan, batubara yang telah ditambang akan disimpan sementara di ROM (Run of Mine) sebelum diangkut ke pelabuhan dan dijual. Ketika tidak terjadi proses bargaining, batubara yang berasal dari pit akan terus menumpuk di ROM. Penumpukan ini menyebabkan bertambahnya luas dan tinggi tumpukan batubara seiring dengan berjalannya aktivitas penambangan. Peningkatan tinggi tumpukan tersebut berbanding lurus dengan meningkatnya potensi terjadinya longsor. Oleh sebab itu, diperlukan kajian geoteknik untuk menganalisis stabilitas lereng dan memperkirakan risiko longsor pada tumpukan batubara di ROM. Pengambilan dan pengumpulan data dilakukan secara berkala selama dua bulan agar data yang diperoleh bersifat representatif dan dapat digunakan sebagai dasar penelitian. Data yang dikumpulkan meliputi tinggi dan sudut kemiringan lereng tumpukan batubara, geometri tumpukan, jenis serta spesifikasi alat yang beroperasi di ROM, data uji laboratorium batubara, dan data hasil uji CBR. Hasil analisis menunjukkan bahwa tinggi maksimum tumpukan batubara yang aman diterapkan di ROM 19 adalah 15 meter dengan faktor keamanan (FK) ≥ 1,2. Desain geometri tumpukan batubara di ROM 19 menggunakan kombinasi lereng dengan dua bench, yaitu bench pertama setinggi 8 meter dan bench kedua setinggi 7 meter, masing-masing dengan sudut kemiringan 30° dan jarak antar-bench sebesar 8 meter. Kata-kata kunci: faktor keamanan, geometri lereng, kestabilan lereng, run of mine ABSTRACTIn mining operations, coal extracted from the pit is temporarily stored at the Run of Mine (ROM) area prior to transportation to the port and final sale. When no bargaining process occurs, coal continues to accumulate at the ROM, leading to an increase in both the height and area of the stockpile as mining activities progress. The increase in stockpile height is directly associated with a higher risk of slope instability and potential failure. Therefore, a geotechnical assessment is required to evaluate slope stability and to estimate the risk of failure in coal stockpiles at the ROM. Data collection was conducted periodically over a two-month period to ensure representative results for this study. The collected data included the actual height and slope angle of the coal stockpile, stockpile geometry, types and specifications of equipment operating at the ROM, laboratory test results of coal samples, and California Bearing Ratio (CBR) test data.The analysis results indicate that the maximum safe coal stockpile height applicable at ROM 19 is 15 m, with a factor of safety (FS) ≥ 1.2. The proposed stockpile geometry at ROM 19 adopts a combined slope configuration with two benches. The first bench has a height of 8 m with a slope angle of 30°, while the second bench has a height of 7 m with a slope angle of 30°, and the horizontal distance between the two benches is 8 m. Keywords: safety factor, slope geometry, slope stability, run of mine
Co-Authors Ahmad Juaeni Aldina Renata Ali Rahman Alio jasipto Arni, Akbar Damar Kusumanto Eko Santoso Eko Santoso Febriyanti, Sonia Hakim, Romla Noor Indradewa, Rhian Lasron Napitu Marselinus Untung Dwiatmoko Muhammad Kahfi, Muhammad Nursetyo C Putri, Karina Shella Rika Febriyani Riswan Riswan Robby Maulana Rudy Hendrawan Noor SANTOSO SANTOSO Sari Melati, Sari Simon Heru Prassetyo Uyu Saismana