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All Journal Journals Mining Engineering : Bina Tambang MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering
Fariz Aditya
Universitas Negeri Padang
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Industrial & Manufacturing Engineering

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Evaluasi Sistem Penambangan Coking Coal untuk mencapai nilai Crucible Swelling Number (CSN) 3-7 di Pit Haju PT Pamapersada Nusantara Jobsite Adaro Met Coal di Kalimantan Tengah Fariz Aditya; Raimon Kopa
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1284.552 KB) | DOI: 10.24036/bt.v3i3.101410

Abstract

PT Pamapersada Nusantara Jobsite Adaro Met Coal is one of the company's pilot projects in world-class coking coal mining. The right technology and coking coal mining system must be implemented because the quality produced greatly affects the customer's trust. Coking coal is a type of coal that is used as a fuel as well as a reducing agent in the iron / steel industry. One important indicator in distinguishing the quality of coking coal with thermal coal types is the CSN (Crucible Swelling Number) test. Coking coal must have a CSN value of at least 3. Coking coal can decrease in quality due to contamination during the mining process. Based on problem analysis there are 3 mining activities that can affect the quality of coking coal, namely: front loading preparation activities, loading and hauling activities and coal accumulation activities in ROM stock. After applicated improvement of  the mining system in each of these activities comprehensively and then pouring it into the SOP design for coking coal mining, the CSN value was increased by 66% and the ash value decreased by 43%.Keywords: Preparation Front Loading, Loading and Hauling Activities, Coal Accumalation Activities, CSN and Ash
Mine Slope Stability Analysis CV. Putra Idola Against the Padang-Painan Cross Road with GSI Method and Rock Mass Rating Aditya, Fariz; Heriyadi, Bambang; Saldy, Tri Gamela; Nauli, Fitri; Yanti, Syari Rahma; Marlina, Riam; Putra, Kyrie Eleison; Algozi, Rahmad; Akmal, Muhammad
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 7 No 2 (2025): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v7i2.437

Abstract

A slope is a sloping part of the ground surface that connects the higher areas with the lower areas. Slope stability relies heavily on rock mass characteristics, including the Rock Mass Rating (RMR) and Geological Strength Index (GSI) classifications, which are used to evaluate rock quality and slope stability. This research was conducted at the mine CV. Putra Idola which is located in Teluk Kabung Tengah Village, Bungus Teluk Kabung District, Padang City and Nagari Siguntur, XI Koto Tarusan District, Pesisir Selatan Regency, West Sumatra Province. The goal is to determine RMR and GSI values and identify potential slope instability. The methods used include geotechnical mapping with a 15.2-meter long scanline technique to identify burly structures as well as laboratory testing to obtain the physical and mechanical properties of rocks. The data obtained were analyzed to calculate the RMR and GSI values of different types of rocks at the research site. The results showed that the GSI values on the three slopes studied ranged from 53 to 75, while the RMR values ranged from 57 to 75. Based on this classification, the Fresh Andesite and Hornfels rocks are included in the "Good" category, while the Weathered Andesite rocks are included in the "Medium" (Fair) category. The results of this study provide important information for the mining industry in efforts to mitigate landslide risk and design safer slope designs. In addition, this study also emphasizes the importance of rock mass classification analysis in the evaluation of slope stability in open pit mining activities.
Co-Authors Algozi, Rahmad Heriyadi, Bambang Muhammad Akmal Nauli, Fitri Putra, Kyrie Eleison Raimon Kopa Riam Marlina A Saldy, Tri Gamela Syari Rahma Yanti