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Alam Budiman Thamsi
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Journal of Mining Insight
Published by CV. Insight Publisher
ISSN : -     EISSN : 29885264     DOI : https://doi.org/10.58227/jmi.v1i1
Core Subject : Engineering,
Engineering
Journal of Mining Insight (JMI) adalah publikasi yang berfokus pada topik-topik terkait industri pertambangan, termasuk eksplorasi, penambangan, pengolahan, dan pemasaran mineral dan logam. Journal of Mining Insight memuat artikel-artikel tentang penelitian dan pengembangan teknologi yang berkaitan dengan industri pertambangan, serta isu-isu lingkungan, kesehatan dan keselamatan kerja, regulasi, dan perkembangan ekonomi dalam industri tambang. Focus and Scope kegiatan eksplorasi, studi kelayakan, eksploitasi (perencanaan, rancangan, aktivitas, pemantauan) penambangan, pengolahan, reklamasi dan pasca tambang.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 60 Documents
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Analisa Pengaruh Batuan Asal Terhadap Profil Nikel Laterit Menggunakan Analisis XRF Dan Petrografi Di Daearah Kolaka Utara Husain, Jamal Rauf; Harwan, Harwan; Mustakim, Mustakim
Jurnal of Mining Insight Vol 1 No 3 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i3.210

Abstract

Nickel is one of the metals needed by humans. In general, nickel can be formed primarily or secondarily, known as nickel laterite. Nickel deposits in Indonesia are only found in the form of nickel laterite. The parent rock of nickel laterite deposits is ultrabasic rock, especially from the types of harzburgite, dunite, and other peridotites. The data collection technique used is to take data related to the research, both primary and secondary data. Primary data includes outcrop data (megascopic description) at the research location, exploration drill data to determine the thickness of the nickel laterite layer and the content of its elements and rock sample data for petrographic thin section analysis. Sampling was carried out in block A. While secondary data includes data on the general condition of the company, and a map of the research location. 1. The original rock analyzed petrographically is serpentinezed harzburgite. The minerals contained are orthopyroxene, olivine, clinopyroxene, and opaque minerals. The weathering level of the nickel laterite profile in the limonite zone is higher than the saprolite zone because in the saprolite zone most of the rocks are small in size and the original rocks affect the nickel laterite profile that is formed, but are still supported by other factors, namely topography, climate, geological structure, vegetation and time.
Analisis Karakterisitik Geokimia Batugamping Menggunakan Metode X-Ray Difraction dan X-Ray Fluorescence di Kabupaten Buton Selatan Sulawesi Tenggara ramadhan shaddad, Aqsal; Bakri, Hasbi
Jurnal of Mining Insight Vol 1 No 3 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i3.213

Abstract

Limestone is a sedimentary rock formed from calcium carbonate deposits and has a high content of calcium carbonate. It is used in the cement, fertilizer, glass, and construction industries. Research was conducted in the South Buton Regency, Southeast Sulawesi, using the geochimical methods of X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF). The aim of this study was to identify the minerals in limestone and analyze their geochemical characteristics. The research results showed the dominance of calcite minerals in the limestone of the area, with a high content of pure calcium carbonate (CaCO3). The study also observed the presence of other elements in the limestone. The analysis indicated low levels of elements such as Mg, CaF2, Ru2O, Fe2O3, Ag2O, and SrO. The XRD method was useful for mineral identification in limestone, while XRF analyzed the elemental content quantitatively. This research provides a deeper understanding of the mineral characteristics and composition of limestone in the South Buton Regency. This information is valuable for the development of the cement, fertilizer, glass, and construction industries. Additionally, the study also revealed the potential for other minerals in the limestone of the research area.
Perancangan Sequence Triwulan Ketiga Penambangan Batubara pada PT Garda Tujuh Buana Tbk Provinsi Kalimantan Utara Febrianto Wajar, Kurniawan; Thamsi, Alam Budiman; Chalik, Citra Aulian
Jurnal of Mining Insight Vol 1 No 3 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i3.214

Abstract

Mine design facilitates the achievement of the desired production target and provides an overview of the mining progress plan for a period of time. The purpose of this study is to determine the mining sequence design and production scheduling obtained by using data processing software and mine planning software, namely minescape software used for pit design design. The pit design is based on the results of geometric analysis, assuming that the mine is theoretically free from landslides with a slope height of 10 m, a slope width of 5 m, and a slope inclination of 45°. The area of the pit design in the third quarter is 26.76 hectares and the total coal amounted to 866,887.38 tons. For the third quarter production scheduling, for coal loading, 4 digging tools will be operated serving 43 loading tools with a total production of 284,939.12 tons with total working hours of 305.65 hours. So the estimated plan for 4 digging tools and 43 loading tools can meet the production target of the sequence design that has been made.
Analisis Perbandingan Kadar Nikel (Ni) dan Besi (Fe) pada Lokasi Pengeboran dan Lokasi Penambangan PT. Almharig Mineral Provinsi Sulawesi Tenggara Jafar, Nurliah; Kadar, Muhammad Ilham; Alrasyid, Vandy Fadli
Jurnal of Mining Insight Vol 1 No 3 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i3.215

Abstract

One of the obstacles in nickel mining is the change in nickel (Ni) and iron (Fe) content from drilling data that does not match the content at the mining location. The study aims to determine the percentage change in nickel (Ni) and iron (Fe) content from drilling data with the mining location. The research method includes processing samples from drilling results and results at the mining location in the laboratory to determine the comparison of content. The next stage is processing and analyzing content data to determine the average nickel and iron content. The results of the identification of drill point data produced an average content of Ni = 1.90% and Fe = 22.86%. While the average content at the mining location is Ni = 1.86% and Fe = 20.55%. Furthermore, the difference in content at the drilling location and at the mining location can be seen, namely Ni = 0.04% and Fe = 2.31%. From the research results, it can be concluded that the levels of identification results at the drilling location have different levels compared to those at the mining location, where the percentage comparison of nickel levels is 0.04% while iron is 2.31%.
Evaluasi Jalan Angkut untuk Produksi Penambangan Area Pit 6 B Pada PT Jhonlin Baratama Kalimantan Asmiani, Nur; Widodo, Sri; Usman, Arfa
Jurnal of Mining Insight Vol 1 No 3 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i3.216

Abstract

Road access is an important factor in the achievement of coal and OB transport targets. Therefore, transport activities must be accompanied by road conditions that are suitable to be used as production routes in accordance with the standards adopted by Bina marga and AASTHO. The purpose of this study is to determine the geometry of mining road and the supporting factor of smoothness and safety at PT. Jhonlin Baratama. The data used in this study are data of road haul road, radius and superelevation, cross slope and road slope. After this data is obtained then processed using software Minescape 5.7 to obtain the count of road length, road width, and elevation. MS Software. Excel to know the evaluation data of high difference, road grade, cross slope, radius and superelevation. Processed data were analyzed based on standards of Bina marga and international AASTHO to determine the feasibility of road geometry. From the results of study that has been done, it is known that the existing haul road already meets the minimum width requirement for a straight road that is 9 m for Hino 320 and 19 m for HD465-7. On the two-lane haul road and on the bend, for Hino 320 already meets the minimum width standard whereas for HD 465-7 it is necessary to add the width of the bend in segment C, F, G, H and I the width addition is intended to prevent dump truck waiting when passed. There are also some road segments whose slope exceeds the standard, which is 8% and does not have a cross slope that has the potential to cause puddles.
Analisis Mine Dewatering pada Penambangan Nikel PT Makmur Lestari Primatama Kecamatan Langgikima Kabupaten Konawe Utara Provinsi Sulawesi Tenggara ma'rief, Al’Faizah; Harwan; Widodo, Sri
Jurnal of Mining Insight Vol 1 No 4 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i4.252

Abstract

The problem that is often faced in mining activities in open pit mines is high rainfall that can hamper mining operations. Mine Dewatering is a handling of mine water problems by removing water that has entered the mining area (by utilizing differences in height and gravitational force) through drainage channels to temporary storage ponds (sump). This system is commonly applied for handling runoff from rainwater. The purpose of this study is to find out the volume of water entering the mining front, analyze the ideal sump volume to hold runoff water and analyze the ability and duration of pumping to slice water that is in the sump. The average rainfall obtained from data for 2019-2022 is 81 mm/day. The calculation of planned rainfall is determined using a gumble distribution, the calculation of planned rainfall based on the repeat period over 2 years is 201,658 mm/day. Based on the results of the study, the average rain time was 11.97 hours, rainfall intensity was 6,572 mm/hour, runoff coefficient was 0.9 and the rain catchment area was 692,000 m2. So that the runoff water discharge that enters the sump is 4,093.04 m3/hour, the total volume of water entering the sump is 98,233 m3/day. The ideal sump volume to hold runoff water is 71,813.36 m3. The pumping discharge is 1,841.62 m3/hour, the length of sump drying time with an estimated pumping time of 20 hours/day is 9 days.
Penentuan Karakteristik Batubara Berdasarkan Analisis Proksimat pada PT Tribhakti Inspektama Kabupaten Tanah Bumbu Kalimantan Selatan Dzakir, La Ode; Aldiyansyah; Heriansyah, Andi Fahdli
Jurnal of Mining Insight Vol 1 No 4 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i4.253

Abstract

The role of coal as a substitute energy source for oil and gas is getting bigger, especially to increase the pace of development and economic growth. Therefore, Indonesia's coal production and consumption will continue to be increased, especially as direct fuel for power plants, large and medium-sized industries, and home industries. The purpose of this research is to study the characteristics of coal based on proximate analysis while the purpose of this research is to determine the quality of coal based on proximate analysis. The results of the analysis on coal carried out at the PT Tribhakti Inspektama laboratory regarding proximate analysis in the Batu Licin sub-district, Tanah Bumbu Regency, South Kalimantan for moisture, the average value of the 6 samples obtained 18,72% results using the formula that has been determined, the average value for ash analysis was 3,30%, the total average value for volatile matter was 41.02% and for fixed carbon based on the results of analysis in the laboratory the average value was 36.97% then, from the analysis results when compared with the table regarding coal classification according to ASTM, coal in the Batu Licin sub-district, Tanah Bumbu Regency, South Kalimantan is included in the quality of lignite and from the test results the coal can meet the requirements for the cement and metal industry.
Analisis Geokimia Batugamping Daerah Desa Binuang Kecamatan Balusu Kabupaten Barru Provinsi Sulawesi Selatan Harwan, Harwan; Hafsyam, Muhammad; Juradi, Muhammad Idris
Jurnal of Mining Insight Vol 1 No 4 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i4.254

Abstract

Limestone is a type of sedimentary rock with the main mineral composition being calcite with the chemical formula CaCO3. Limestone found in nature is generally yellowish white, white, gray and black. This research aims to determine the geochemical characteristics of limestone in Binuang Village, Balusu District, Barru Regency and what the chemical composition of limestone in Binuang Village, Balusu District, Barru Regency. The research method uses XRD analysis and XRF analysis methods. in mineralogical analysis using the X-Ray Diffraction method, all limestone samples in 4 stations in the Binuang Village area were composed of minerals such as Calcite (CaCO3) containing 100% calcite. Based on the results of analysis using the X-Ray fluorescence method, all limestone samples at 4 stations showed CaO element values of 52.7-55.4%, LOl of 39.2-43.6%, Fe2O3 of 1.4-2.53 %, MgO is 1.17-1.29%, as well as several other compounds whose percentage is below 1% such as P2O5, SiO2, Al2O3, MnO, K2O, Na2O and TiO2. So the limestone in this study can be categorized as high quality (high grade limestone) because it has a CaO content of > 49%. This means that the limestone samples found in the Binuang Village area, Barru District, South Sulawesi Province have met good quality standards for raw materials for making cement and can be used as an addition in the steel smelting process.
Kontrol Kualitas Batubara Pada Proses Pengangkutan di Site PT BCMP Kabupaten Tanah Bumbu Kalimantan Selatan Amir, Muh. Karnoha; Shaddad, Aqsal Ramadhan; Dzakir, La Ode
Jurnal of Mining Insight Vol 1 No 4 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i4.255

Abstract

Coal is formed from organic deposits undergoing conversion through the coalification process. Coal is a solid object containing carbon, hydrogen, and oxygen in chemical combination with a small amount of sulfur and nitrogen elements, which are found in the earth's crust derived from plant remains that have undergone metamorphosis over a long period of time. The purpose and objective of this research is to control the process of transporting coal from the stockpile to the coal haulinvessg el and to determine the quality of the coal in the stockpile and coal haulage vessel. The ash value in the stockpile is 3.98% and the coal haulage is 4.13% so that there is an insignificant increase, then the total sulfur in the stockpile is 0.11% and the coal transport vessel 0.10% is a non-significant decrease. then the total moisture in the stockpile obtained a value of 42.15% and coal hauling ships 42.25% an insignificant increase. fixed carbon in the stockpile obtained a value of 31.94% and coal ships 32.11% an insignificant increase. Then the volatile matter in the stockpile obtained a value of 43.21% and coal transport vessels 42.59% an insignificant decrease. And moisture in the stoockpile obtained a value of 20.87% and coal hauling vessels of 21.17% an insignificant increase, then the calori value obtained in the stockpile value of 4.856 and coal hauling vessels of 4.824 there was an insignificant decrease in calories. From the results of the quality of the coal above, it shows that during the process of transporting coal from the stockpile to the coal hauler, the coal quality parameters did not experience a quality drop or significant quality change, so during the coal transportation process there were no factors that affected the quality change significantly.
Analisis Pengolahan Emas Menggunakan Sistem Hidraulik Mekanik di Daerah Rarowatu Kabupaten Bombana Provinsi Sulawesi Tenggara Bakri, Hasbi; Anshariah; Asri, Al
Jurnal of Mining Insight Vol 1 No 4 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i4.256

Abstract

Each processing using hydraulic system produces waste, tailing, containing gold. This research aimed to find out the cause of the losing and to find out the appropriate hydraulic system. It was conducted by taking data on the slope of the sluice box, the speed of materials flow, processed materials, and production results per day. The obtained data were then analyzed throughout comparing the values in the five research sites. The result indicated that in pit one the slope of sluice box was 150 with the flow speed was 2.05m/s resulted in 0.180 kg gold from 26.3 m3. In pit 2, the slope and the speed were 15o and 2.05 m/s respectively which this resulted in 0.180 kg gold of 26.3 m3. In pit 3, the slope and the speed were 12o and 1.92 m/s which resulted in 0.159 kg gold of 31.2 m3. In pit 4, the slope and the speed were 13o and 1.99 m/s which resulted in 0.148 kg gold of 28.3 m3. In the last pit, the slope and the speed were 15o and 2.01 m/s which resulted in 0.197 kg gold of 32.4 m3. The comparison indicated that the series of the hydraulic system which had ideal working efficiency was the one which had 2 m/s speed flow with the slope of sluice box was 15o. The slope was much better than 13o and 12o. The influencing factors for the loss were the speed of the flow and the slope of the sluice box

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