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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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Analisis Kemajuan Penambangan Batubara Menggunakan Surpac dan Prismoidal Di Kalimantan Timur Arsdin, Dian Dwi Apriliyani; Harwan, Harwan
Jurnal of Mining Insight Vol 2 No 1 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i1.257

Abstract

In general, coal mining in indonesia uses the open pit mining method, one of the critical success of this mining method is the stripping of over burden which is above the coal seam itself. Thus the purpose of this research is to calculate and analyze the progress of mining on the activities of over burden stripping. In this study measurement is done through cress, toe, and spot on coal mining using total station, from the measurement results are processed and then compared the volume of the stripped over burden by using surpac and prismoidal. The volume result of the mined over burden by surpac during the first week is 10,643 m3, second week 54,556 m3, and on the third week 63,596 m3, while the calculation result by prismoidal during the first week is 11,66 m3, second week 53,99 m3, and on the third week 64,64 m3. So from the comparison mining volume of stripping over burden between surpac and prismoidal on the first week 1.02, second week 0.56, and third week 1.05. Based on the comparison it is concluded that the surpac and prismoidal have calculation results tend to be similar in comparison.
Analisis Perbandingan Kadar Nikel Hasil Pengeboran dengan Hasil Penambangan pada PT Ghanesa Wana Utama Aldiyansyah; Husain, Jamal Rauf
Jurnal of Mining Insight Vol 2 No 1 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i1.259

Abstract

The process of mining nickel resources at PT Gahnesa Wana Utama has problems in the form of differences in nickel content between the drill data and mining results data. Therefore, this study aims to determine the proportion of nickel grade values from drilling to mining results and to determine the factors that cause changes in nickel content values from drilling and mining results. The research method is carried out by analyzing the results of drill data with mining results. The results of the study showed that the drilling results obtained an average grade value of 1.64%, while mining results obtained an average grade value of 1.42%. This study shows that there has been a comparison of the difference in Ni content based on the results of drilling and mining results, namely 0.22%. The causative factors of changes in nickel levels are stagnant water in the stockpile, use of used sacks for samples, dredging of stockpile floors that are less clean, operators who are less attractive in ore collection, sampling errors and preparation errors.
Efektifitas Metode V Shape Loading Dengan Cross Loading Terhadap Produktivitas Whell Loader Dzakir, La Ode
Jurnal of Mining Insight Vol 2 No 1 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i1.260

Abstract

The research was conducted in regency of Taliabu Island, North maluku province on mining problem studied in this research is to calculate the effectiveness of loading tool production using two methods, namely cross loading and V Shape loading. To solve the problem, firstly do the calculation on the productivity of each of the two methods, such as calculation of cycle time, Fill Factor, Sweel Factor and work efficiency of loading tools. The cycle time from V shape loading method is 30.07 seconds and the cross loading method is 37.40 seconds, the fill Factor for shape loading method is 83% while for the cross loading method is 84%, its Sweel Factor is 80% and the work efficiency from theV Shape Loading method is 79%, while the cross loading method is 76%. Based on results, the effectiveness of the production of V Shape loading method is 308,85 tons/hour while the cross loading method is 248,59 tons/huor.
Bentuk Desain dan Pemilihan Jenis Tanaman Lahan Pasca Tambang Nikel di Desa Tangofa Provinsi Sulawesi Tengah Sandi, Reski; Shaddad, Aqsal Ramadhan
Jurnal of Mining Insight Vol 2 No 1 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i1.262

Abstract

Environmental changes due to mining business are generally irregular, and most tend to be a steep relief. The objective of this research is to produce the reclamation design and to determine the right type of vegetation for planting in the former nickel mining area. This study employs qualitative research method which consist of field survey data collection, precipitation data, and size of the reclamation design as well as the history of the company being analyzed. Referring to the results of this study, the design of reclamation is vital in mine planning based on the principles as stipulated in the goverment regulation of the republic of indonesia no. 78 the year 2010. In relationt to the planned closure of the post-mining land. It is necessary to design the land after the mining activities expire considering that the land would be utilized by its allocation. Making a reclamation design used the bench method, by forming terraces since the relief was quite steep. Based on the calculation of geotechnical science by the company, the results of the slope was quite optimal with a value of SF ± 1,5 in the 3D design as reference drawings for reclamation design. Plants suitable for early revegetation is sengon, it is based on the analysis performed on 2 (two) soil chemical properties located in blok X for micro nutrient parameters. The soil pH at this location was categorized as a weak acid, and the nutrient content at the research site was classified high since it possessed higher than the averagae value based on laboratory results.
Desain Jalan Tambang PT. Vale Indonesia Tbk Sorowako Anwar, Habibie; Thamsi, Alam Budiman
Jurnal of Mining Insight Vol 2 No 1 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i1.263

Abstract

The main function of the mine road is to support the smooth of mining operation, especially in transportation activities, so the good mine road is necessary to design to improve hauling productivity. This research aimed to determine the ideal road geometry for the transportation activities. The data used in this research are topography map, transportation equipment specification data, SOP (standard operational procedure) of road design, and road geometry data. Data processing is conducted to make the calculation of road geometry using rational formula, then based on the result of the calculation, the design of mining road is made. The results of the research showed that the minimum road widths for the straight road are 22 m and for the bend are 28 m, then have the grade of 10% or 3.6°, have the cross slope with height of 3%, and for the bend with width 28 m. The good superelevation used is 6% m. In conclusion, the geometry of mine road at PT. Vale Indonesia, Tbk has been the ideal for fulfilling the hauling activities.
Evaluasi Kinerja Unit Produksi Asam Sulfat (WSA) pada Proses Produksi Gas Alam Bundang, Syarifullah; Amir, Muh. Karnoha
Jurnal of Mining Insight Vol 2 No 2 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i2.270

Abstract

Feed gas which is produced by the factory of gas processing generally contains acid gas with high concentrations of acid gas wich must be removed by reducing the contrentration of CO2 and H2S according to product specification of sweet gas of <4 ppm-mol H2S and 5 % CO2. The research on the unit of WSA aimed to compare the simulated data and actual performance data and trial simulation (combustion pressure, the inlet temperature of SO2 converter, and water excess. The method used to retrieve the actual data of each piece of equipment was the results of the analysis of the composition of the acid gas, the composition of the stack, and purity H2SO4. The results obtained showed that the conditions of the performance test and simulation are not significantly difference, yet the purity H2SO4 obtained from the simulation results higher than the performance test. Based on the results of observations showed that the higher the molar flow acid gas is the higher the flow rate of the inlet will be and influence to the products where the flow rate of H2SO4 will decline, when water excess is added, the purity of the product will increase, and the flow rate of product will decline. There are differences in the purity of H2SO4 from the performance test and simulation.
Studi Penentuan Sebaran Kadar dan Estimasi Sumberdaya Nikel Laterit Pada PT X Kabupaten Luwu Timur ma'rief, Al’Faizah; Aldiyansyah, Aldiyansyah
Jurnal of Mining Insight Vol 2 No 2 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i2.271

Abstract

I In nickel laterite mining, it is necessary to map grade distribution and estimates to be able to calculate resources before the mining process takes place. Resource estimation plays an important role in determining the quantity and quality of a deposit. On the basis of the foregoing, a study was conducted on exploration activities aimed at determining the amount of nickel laterite deposit resources. In this study, estimation of nickel laterite resources was carried out using the Inverse Distance Weighting (IDW) method. The purpose of this study was to determine the direction of distribution of grades and amount of nickel laterite deposit resources in the study area. This research was conducted using Microsoft Excel software, ArcGIS 10.8, surpac 6.5.1. Based on the results of the drilling database provided by PT X which totaled 20 drill points, the distribution of nickel laterite mineralization grades in the study area based on grade distribution maps, laterite nickel with grades <1 occupies the western and southeastern parts of the study area (green, yellow and red). , while the distribution of laterite nickel grades with grade values > 1 occupies the northeast, southwest and northwest (dark gray and purple colors). has nickel resources of 169.950 tons, with an average value of Ni content of 1,87% from the number of drill points of 20 with a spacing of 50 m.
Analisis Desain Ramp Tambang pada PIT B PT Pancaran Surya Abadi Kabupaten Kutai Kartanegara ramadhan shaddad, Aqsal; Nurwaskito, Arif
Jurnal of Mining Insight Vol 2 No 2 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i2.272

Abstract

Mining Design plays an important role in extracting reserves from mineral deposits. The mine design makes it easy to meet production targets and is ideal for horizontally shaped ore bodies such as coal. The purpose of this study is to determine the design of the ramp in the mining pit, determine the ramp pit and the type of ramp used. This research method uses mine planning surpac software and data processing excel software to make a ramp design, determine the type of ramp. The results of the research that has been carried out obtained a ramp design with the type of Constant berm ramp using a stepped geometry, namely the maximum overall slope of the high wall is 60° and the low wall is 45°, the step height is 8 m, and the step width is 3 m, the road width is 10 m, with a road grade of 12%. of these results assumes that the mine is theoretically free from landslides. So that the tool can work optimally both empty and loaded on an incline. The type of road used has the highest level of safety when compared to other types of mining roads.
Analisis Supply-Demand Energi Listrik Untuk Memenuhi Kebutuhan PLN Sulawesi Selatan Asmiani, Nur
Jurnal of Mining Insight Vol 2 No 2 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i2.273

Abstract

Electrical energy is one of the basic needs in modern human life. Electricity is very integrated into everyday life, work, or commercial. Indonesian society, urban, already depend on electric energy to run everyday life. The purpose of this study to determine the level of electricity consumption in South Sulawesi and to determine selling value of energy demand to PLN. Stages and research methods undertaken consist of the process stages of research, methods of data retrieval, data processing and stages of data analysis, and the stage of report generation. The data taken are primary data and secondary data, after the data collected data are analyzed to calculate the supply-demand of electrical energy needed by PLN. The composition of electricity demand in the base year (2013) consists of Commercial sector 999,485.90 MWH, industrial sector 859,482.75 MWH, government sector 248,237.97 MWH, social sector 202,789.65 MWH and household sector with 2,568,038,85 MWH. For the year 2015 also still dominated by the household sector with 2,568,038.85 MWH. This figure is the same from 2013. Likewise with the commercial sector which rose to 1,011,709.57 MWH and industrial sector to 861,117.44 MWH. government sector to 249,256.10 MWH and social sector to 204,689.38 MWH. To be able to meet the needs of electrical energy in South Sulawesi, is expected with the power plant PLTU PT. Bosowa Jeneponto Energy with total power generated of 128,877.37 MWH can supply electrical energy for PLN South and West Sulawesi in fulfilling the needs of 100 MW electricity energy every year for new customers, with the selling price of PLTU power plant PT. Bosowa Energy to PLN Rp 500 / Kwh.
Karakteristik Mineralogi Batugamping di Kecamatan Segeri Kabupaten Pangkep Provinsi Sulawesi Selatan Fitriana, Tati; Harwan, Harwan
Jurnal of Mining Insight Vol 2 No 2 (2024): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v2i2.274

Abstract

Batugamping disebut juga batukapur atau limestone merupakan batuan sedimen dengan kandungan mineral kalsium karbonat (kalsit) CaCO3 sebesar 90%, dolomit 3% dan sisanya adalah mineral clay. Penelitian ini bertujuan untuk mengetahui karakteristik mineral batugamping berdasarkan analisis petrografi dan mengetahui komposisi mineral batugamping berdasarkan analisis XRD serta mengetahui lingkungan pengendapan mineral batugamping. Metodologi penelitian didasari dengan melakukan pengujian berupa analisis XRD dengan menembakkan sinar X pada sampel untuk mengetahui komposisi mineral dan analisis petrografi menggunakan alat mikroskop menyinari berkas cahaya atau elektron pada sampel batuan pada suatu jalur optik untuk mengetahui mineral penyusun pada batuan. Berdasarkan analisis petrografi, pada sampel 1 menunjukan mineral kalsit, grain, opak, dan mud. dengan nama batuan packstone. pada sampel 2 menunjukan mineral kalsit, grain, opak, mud. dengan nama batuan wackstone. pada sampel 3 menunjukan mineral kalsit, grain, opak, mud. dengan nama batuan wackstone. pada sampel 4 yang menunjukan mineral kalsit, grain, mud. dengan nama batuan tersebut packstone. Komposisi mineral berdasarkan analisis XRD pada sampel 1 menunjukkan kandungan kalsit (CaCO3) sebesar 100%. Hasil analisis XRD pada sampel 2 menunjukkan kandungan kalsit (CaCO3) sebesar 100%. Hasil analisis XRD pada sampel 3 menunjukkan kandungan kalsit (CaCO3) sebesar 94,6% dan kandungan dolomite (CaMg(CO3)) sebesar 5,4%. Hasil analisis XRD pada sampel 4 menunjukkan kandungan kalsit (CaCO3) sebesar 100%.

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