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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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Pemantauan Dan Pengelolaan Air Pada Tambang Batubara PT Bukit Makmur Mandiri Utama Kabupaten Berau Provinsi Kalimantan Timur Sukamto, Purwoto; Widodo , Sri; Nawir , Alfian; Thamsi, Alam Budiman
Jurnal of Mining Insight Vol 1 No 1 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i1.32

Abstract

In the mining industry, especially coal mining of PAF materials which are the source of mine acid formation when interacting with water (H2O) and air (O2) Should be managed as best as possible to minimize acid mine water in the pit before the water is pumped out. This research aimed to determine the method used in handling AAT forming material and to discover whether the quality of wastewater from the settling pond is by wastewater quality standard. The stages and processes of research consist of four steps: data retrieval techniques, data processing, data analysis stages, and the report generation stage. The data taken are primary data, such as inlet and outlet pH and the types of PAF and NAF rock and secondary data, which are company profile data required in report writing. After the data is collected, the data is analyzed to determine the method used in PT. Bukit Makmur Mandiri Utama (BUMA) for AAT handling. In the prevention of the establishment of AAT PT. BUMA applies a capsulization method for handling AAT PT. BUMA has WMP. Water quality with pH parameters at inlet zone 4 and outlet 6, TSS ranged from 6 - 4, Fe <0.02, Mn 2.67 – 2.77. the conclusion of this research is handling the establishment of AAT PT. BUMA performs two ways: the capsulization method and provision of lime neutralizing materials; the water pH in the sediment pond that is four while the pH of water issued is 6, and the amount of lime required is 765,534 kg. Water flowed by PT. BUMA has met the wastewater quality standard set by Kep. Men LH no. 113 the year 2003.
Identifikasi Bahaya Dan Pengendalian Risiko Sebagai Upaya Mencegah Dan Mengurangi Risiko Kecelakaan Kerja Pada Tambang Batubara Provinsi Kalimantan Timur Azis, Muh. Heri; Anshariah, Anshariah; Nurwaskito, Arif
Jurnal of Mining Insight Vol 1 No 1 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i1.33

Abstract

Occupational safety and health is a problem that has always been related to the world of work since the beginning of the industrial world began is the emergence of work accidents in their activities that have the potential to cause hazards and work accidents such as property damage, lost time injury to cause fatality . The purpose of this study is to determine the identification of hazards and control the risk of work accidents based on the determination of the risk value of the source of hazard and appropriate control to reduce and eliminate the risk of hazards. The research method carried out is to descriptively describe the situation or object in facts with direct observation. The first thing to do is to find the source of danger using hazard source data, potential hazard data, and K3LH performance report data, then hazard identification and risk assessment based on OHSAS references. Hazards that have been identified are evaluated for risk level. The results of the study found the source of danger that often occurs, namely the concentration of very thick dust and the absence of warning signs. Based on the results of the study, the evaluation carried out is to identify hazards based on the source of hazards obtained in the field and assess and control the source of hazards to reduce the risk of work accidents. From the assessment results, 4 types of risks were obtained, namely four near-miss risks, four property damage risks, three lost time injury risks, and three fatality risks. Conclusions Based on the results of hazard identification and risk control, the hazards that must be prioritized are the risk of fatality and the risk of lost time injury.
Pengaruh Relief Topografi Terhadap Daerah Prospek Nikel Laterit Kecamatan Bahodopi Kabupaten Morowali Provinsi Sulawesi Tengah Astuti, Sri Epi; Anshariah, Anshariah; Anwar, Habibie; Djamaluddin, Djamaluddin
Jurnal of Mining Insight Vol 1 No 1 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i1.39

Abstract

Nickel laterite deposit is a result of weathering processes of  ultramafic rocks which carry Ni-Silicate. Generally the deposit is found from tropical to subtropical climates. The aim of this research was to find out the influence of the ground slope to the thickness zone of the nickel laterite based on the cross-section of the drill hole. The research method was to create the cross-section nickel laterite. The data ware obtained from assay data, coordinate, drilling points distribution, and cross-section of the drill hole. From cross-section of the drill hole, the data regarding the level of Ni and Fe were obtained. From the hole id 5A_0171, the lowest Ni level for limonite was 0.19%, and the highest level was 1.17% and for the Fe level, the lowest was 32.13% and the highest was 49.84% with the depth ranging from 0 to 18 metres. The lowest Ni level for the saprolite was 0.79% and the highest was 2.04% whereas for the Fe  level, the lowest was 9.97% and the highest was 15.77% with the depth ranging from 18 to 25 metres. The lowest Ni level for the bedrock was 0.29% and the highest was 0.56% whereas for its Fe level, the lowest was 6.91% and the highest was 8.67% with the depth ranging from 25 to 27 metres. The concluding data for the sloppy areas from the steep to slightslopes was that the limonite zone tended to follow the surface morphology pattern with the thickening occurrence in the steep slopes however the saprolite zone did not follow the surface morphology but it became thick in the steep slopes.
Perencanaan Kebutuhan Pompa Untuk Sistem Dewatering Tambang Emas Desa Bakan Kabupaten Bolaang Mongondow Putri Hamdan, Annisya; Anshariah, Anshariah; Bakri, Hasbi; Nullah Yusuf, Firman
Jurnal of Mining Insight Vol 1 No 1 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i1.40

Abstract

One of the most frequent problems in open pit mining methods is the presence of water puddles in the lowest elevation of the pit. This often causesthe delay of production activities.Therefore, it is a need to design a good drainage system planning to deal with it. In this regard, pumps were needed. The aim of this research was to determine the of needed pumps and the best type of pumps to remove water in the pit effectively. This research used maps of mining sequence planningwhich would be then analysed with software Surpac 6.5.1.This was to identifythe width of catchment area. Furthermore, the rainfall data wasanalysed using polygon Thiessen method. The next process is to determine the rainfall plan with Gumbel method. Next was to determine the rainfall intensity plan by using Mononobe equations. Following this was determine the total discharge using rational method. Finally, the process was ended with the determining of the pumps type and pumps spesification to dry the water puddles in the pit. the result indicated that in the sump of the 3rd quarter 2020 with 100 l / sec pumping flow, pumping time 14 hours, total head 76.26 m, recommended pump type is a Multiflo MFC 385 with a rotation speed of recommendation per minute of 1400-1500, and an efficiency of 60% -65%. For 4th quarter sump 2020 with 105l / sec pumping discharge, 20 hour pumping time, total head 105,91 m, recommended type of pump is Multiflo MFC 385 with rotation speed recommendation permenit 1600-1700, with efficiency 60%. For the 1st quarter sump 2021 with a pumping rate of 102 l/sec, the pumping time is 20 hours, total head is 122.26 m, the recommended type of pump is Multiflo MFC 385 with a rotation speed of recommendation per minute 1700-1800, with 50% -60% efficiency. It can be suggested that it is  necessary to add one more pump, Multiflo MFC 385, for the dewatering pit process.
Pembuatan Blok Model Estimasi Sumberdaya Nikel Laterit Dengan Metode Inverse Distance di Wilayah Blok “X” Pada PT. Vale Indonesia Tbk Burhanudin, Burhanudin; Rauf Husain, Jamal; Bakri, Hasbi
Jurnal of Mining Insight Vol 1 No 1 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i1.41

Abstract

Block model is an attempt to produce estimates of mineral deposition wich is used as a reference for the mining process. The research objective to provide volume and tonnage estimation. The research method using conventional methods Inverse Dictance, needed the data among which the assay data, the data collar, geological data, and survey data. Research carried out by the number of drill point as much as 275 points and a drill spacing of 50 meters and 25 meters generate the amount of resources that have been calculated in the block model in the amount of resources that the limonite layer of 1,210,938 tonnes with the average levels of Ni: 0.8%, Co: 0.08%, Fe: 42.3%, SiO2: 7.8% and MgO: 1.21%. And for saprolite tonnage of 445,090 tonnes with the average levels of Ni: 1.91%,Co:0.18%, Fe: 32.78%, SiO2: 25% and MgO: 7.08%.
PERANCANGAN PERANCANGAN PIT PENAMBANGAN BLOK 1 SECARA SHORT TERM PADA PT HARVEST CONTRUCTION MINING COMPANY Ma'ruf, Baso Amran; Anwar, Habibie; Nurwaskito, Arif
Jurnal of Mining Insight Vol 1 No 2 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i2.82

Abstract

This research was conducted at PT Harvest Construction Mining Services which is engaged in mining, especially in nickel ore mining as a mining consultant. Which is located in Mandiodo Village, Mandiodo District, North Konawe Regency, Southeast Sulawesi. This study aims to create a pit design and mining sequence design at PT Harvest Construction Mining Services, to make a production schedule based on daily ore production targets. Based on the results of the research, the pit limit was designed based on the estimation results of the block model with the parameters of bench height of 5 m, width of berm 2 m, CoG of 1.5%, and a minimum stripping ratio value of 1:3. Based on the pit limit design, the opening volume is 371,445 m3. Based on the mining pit limit, the pit limit design is divided into several smaller units using mining software. The results of the analysis of the distribution of mining sequences obtained four mining periods with each period per quarter. The first mining sequence obtained a total ore of 67,215 tons of overburden 104.383 tons, the second sequence obtained a total of 71,814 tons of ore with 39,081 tons of overburden, the third sequence with 72,735 tons of ore and 40,547 tons of overburden. The fourth sequence, which is the pit limit of mining, obtained a total of 67,033 tons of ore with a total overburden of 110,100 tons. The total ore to be mined is 278,797 tons.
Kajian Program Pengembangan Dan Pemberdayaan Masyarakat (PPM) Di PT Batu Mulyo Berjaya Kec. Kesugihan, Kab. Cilacap, Prov. Jawa Tengah Guntil Frans, Susana; Purnomo, Hendro; Ali Mohamad, Mustapa
Jurnal of Mining Insight Vol 1 No 2 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i2.151

Abstract

PT. Batu Mulyo Berjaya is one of the companies with IUP 543.32/3666 of 2020 which is engaged in mining and crushing andesite stones. Community Development and Empowerment Program at PT. Batu Mulyo Berjaya must focus on vulnerable or underpowered community groups by carrying out community development activities aimed at forming an independent society. The purpose of this study is (1) to find out the community development and empowerment programs that have been carried out by PT. Batu Mulyo Berjaya in Pesanggrahan village, (2) knowing the benefits felt by residents in Pesanggrahan village to community development and empowerment programs, (3) knowing the community development and empowerment programs that have not been carried out by PT. Batu Mulyo Berjaya to the community in Pesanggrahan village. The method of determining the sample was simple random sampling with a sample of 10 respondents. The results of the study show that the program implemented has referred to the Ministry of Energy and Mineral Resources 1824 K/30/MEM of 2018 concerning Guidelines for the Implementation of Community Development and Empowerment, where in the regulation there are 8 (eight) program areas, namely, education, health, increasing real income, economic independence, socio-culture, environmental management between the community and companies, the formation and strengthening of institutional organizations, and the development of supporting infrastructure for the program community development and empowerment. Furthermore, the public's perception of the community development and empowerment program carried out by PT. Batu Mulyo Jaya, from the results of the research, it can be seen from the community's satisfaction with the PPM program, and public knowledge about the PPM program implemented by the company.
Processing Critical Bond Lenght Berdasarkan Data Aktual Pull Out Test (Cablebolt) pada Area Tambang Bawah Tanah Grasberg Block Cave Di PT.Freeport Indonesia Mofu, Raynata Aprillia; Wijaya, R.Andy Erwin; Sutrisno, Agung Dwi
Jurnal of Mining Insight Vol 1 No 2 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i2.152

Abstract

PT. Freeport Indonesia is a company that mines, processes and explores ores containing copper, gold and silver in the highlands of Tembagapura, Mimika Regency, Papua Province with an area of 212,950 hectares. To improve the stability of the opening hole in underground mines, it is necessary to implement  a ground support  system in underground mines, one of which is used in  the Grasberg Block Cave (GBC) area of PT. Freeport Indonesia is a supporting support (Cable bolt). Therefore, it is necessary to further analyze the strength of the critical bond length  of the Cablebolt in the Grasberg Block Cave (GBC) area of the underground mine of PT. Freeport Indonesia. The purpose of this study is (1) to determine the strength of the bond length based on tensile test data, (2) to determine the elastic value of cable bolts. From the results of the tension and strain of the single cable bolt that has been obtained, the Ice Value and the maximum stress of the cable bolt are determined, the data is obtained with a tension value of 10.6263 N/mm2 and a stretch value of 0.00427. After obtaining the stress and tension values of the single cable bolt,  the Es value of the cable bolt with a value of 1403.45 Mpa is sought. From the results of the tension and tension of the twin  cable bolts that have been obtained, the Ice value of the cable bolts is obtained. From the experimental data, a tensile value of 3.8658 N/mm2 and a tensile value of 249.68 were obtained. After obtaining the stress and tension values of the twin cable bolts, the Ice value of the cable bolts with a value of 358.647 Mpa is sought. 
Analisis Laju Geokimia Penetralan Air Asam Tambang Dengan Metode Open Limestone Channel Dan Penambahan Biji Kelor Ratmi Nurhawaisiah, Sitti; Budiman Thamsi, Alam; Wardana, Lubis
Jurnal of Mining Insight Vol 1 No 2 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i2.174

Abstract

The environmental influence of coal mining activities is one of the changes in soil quality, air quality and surface water. Therefore, this research was carried out to find out whether mine acid water can be neutralized using a passive method by utilizing  the Lime Stone Channel system and adding moringa seeds by paying attention to variables that refer to the Constitution, namely pH (acidity), TSS (Total Suspended Solod) and heavy metal parameters of Manganese (Mn) and Iron (Fe). The research method was carried out by analyzing TSS (Total Suspended Solid) physical parameter test data, chemical parameter test data (Fe and Mn), and XRD (Limestone) data. The results of the study showed that it was known that  the Open Limestone Channel method and the addition of moringa seeds could neutralize the pH level and the benefits of moringa seeds were functional and useful for reducing or filtering the sludge contained in the samples, as well as limestone samples were useful for filtering or neutralizing the pH level in the mine acid water samples.
Desain Pit Penambangan Pada Tambang Nikel Desa Wailukum Kabupaten Halmahera Timur Arfansyah, Muh.; Anshariah, Anshariah; Nawir, Alfian
Jurnal of Mining Insight Vol 1 No 2 (2023): Journal of Mining insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i2.175

Abstract

One of the important aspects of mining planning is the activity of planning and designing mines based on feasibility studies and the final results of exploration of excavated materials. The purpose of this study is to design a mining pit design based on the level distribution pattern and ultimate pit limit. The data used in writing this thesis are assay data,  collar data, geological data, survey data, topographic maps, and coordinates of the research area. Data processing was carried out using Ms. Excell's software to import the database and change the data format to comma separated value, followed by the creation of a model of the pattern of laterite nickel deposits, determination of mining limits on laterite nickel deposit blocks, determination of mining methods, and design  of pit designs mining using Surpac 6.3 software. Based on the research that has been conducted, it can be concluded that based on the pattern of nickel content distribution and the recommendations of the results of the geotechnical study, the  design of the mining pit has the results of bench  geometry and overall slope, namely a bench height  of 5 meters with a width of 3.5 meters and an overall slope of 45º, in accordance with the recommendations of the geotechnical section.

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