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INTAN Jurnal Penelitian Tambang
Published by Universitas Papua
ISSN : 26553473     EISSN : 27232727     DOI : https://doi.org/10.56139/intan.v4i2.85
Core Subject : Economy, Science, Engineering,
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering
Fokus dan lingkup Jurnal INTAN adalah Pertambangan baik dalam pengelolaan dan pengusahaan mineral atau batubara yang meliputi eksplorasi, konstruksi, penambangan, pengolahan dan/atau pemurnian atau pengembangan dan/atau pemanfaatan, pengangkutan dan penjualan, kegiatan reklamasi dan pascatambang, kebijakan-kebijakan ekonomi, lingkungan, dan sosial di bidang pertambangan mineral dan batubara. Jadi Jurnal Intan merupakan media untuk menyalurkan pemahaman tentang aspek-aspek sains, teknologi, ekonomi, sosial dan lingkungan dari dunia pertambangan berupa hasil penelitian lapangan atau laboratorium maupun studi pustaka.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 124 Documents
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ANALYSIS OF THE INFLUENCE OF GRAIN SIZE ON INCREASING CALORIES OF LOW RANK COAL USING THE BROWN COAL UPGRADING METHOD: ANALISIS PENGARUH UKURAN BUTIR TERHADAP PENINGKATAN KALORI BATUBARA PERINGKAT RENDAH DENGAN MENGGUNAKAN METODE UPGRADING BROWN COAL Krisanto Yardin Panggeso; Windhu Nugroho; Shalaho Dina Devy; Agus Winarno; Revia Oktaviani
INTAN Jurnal Penelitian Tambang Vol. 6 No. 2 (2023): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v6i2.186

Abstract

Upgrading Brown Coal aims to reduce the water content in coal so that the calorific value of coal will increase. The methods used in the upgrading process are inherent moisture, volatile matter, ash content, and fixed carbon. The results after upgrading the calorific value of coal by varying the coal size and heating time showed that the most optimum coal calorific value was in sample B1 size 100 mesh with a mixture composition of 50 grams of coal, 100 ml of used cooking oil and 100 ml of diesel, namely with a calorific value of 7388. 86 Cal/gr. The greater the composition value of used cooking oil and diesel, the smaller the inherent moisture value. In sample A with a mesh size of 50 with a composition of 50 grams of coal, 100 ml of used cooking oil, and 100 ml of diesel, the inherent moisture value was 6.7132%. Sample B with a mesh size of 100 with a composition of 50 grams of coal, 100 ml of used cooking oil, and 100 ml of diesel obtained an inherent moisture value of 6.9858%. The smaller the composition of used cooking oil and diesel, the smaller the ash content value, in the sample the mesh size is 50 with a value of 2.0771%, and in sample B the mesh size is 100 with a value of 1.9070%. The effect of coal size on the upgrading process is to increase the maximum calorific value of the 50 mesh size of the coal.
UTILIZATION OF 100% WASTE OIL IN DELTA E EMULSION EXPLOSIVE MIXTURE FOR COAL OPEN MINE: PEMANFAATAN WASTE OIL 100% DALAM CAMPURAN BAHAN PELEDAK EMULSION DELTA E UNTUK TAMBANG TERBUKA BATUBARA Santika Pradhana; Shenny Linggasari; Relinda Este; Dicky Ervando
INTAN Jurnal Penelitian Tambang Vol. 6 No. 2 (2023): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v6i2.188

Abstract

The limitation of coal reserves poses a challenge for the mining industry to optimize coal extraction. Innovations are constantly being sought to enhance efficient productivity while considering environmental sustainability. The innovation of utilizing waste oil up to 100% as a substitute for fuel in the emulsion production process is expected to improve environmental quality without compromising blasting quality. The results showed that the fragment size (P80) in the 85% waste oil trial was 227.8 mm, while in the 100% waste oil trial, it was 325.1 mm. The recovery rate in the 85% waste oil trial location was 95.7%, whereas in the 100% waste oil trial location, it was 95.9%. The measured VoD in the 85% waste oil trial was 4636 m/s, while in the 100% waste oil trial, it was 4632 m/s. VOD numbers show that explosives performed well with no decrease in quality. No fumes appearance shows proper chemical reaction within explosives detonation. 100% waste oil usage is proven to deliver optimum blast results, hence providing efficiency on fuel saving and delivering additional value on recycled hazardous waste produced from mining activity.
HYDROGEOCHEMICAL AND STABLE ISOTOPE ANALYSIS OF KEBAR HOT SPRINGS MANOKWARI DISTRICT, WEST PAPUA PROVINCE: ANALISIS HIDROGEOKIMIA DAN ISOTOP STABIL MATA AIR PANAS KEBAR KABUPATEN MANOKWARI PROVINSI PAPUA BARAT Andrew Karubaba; Irwan Iskandar; Syafrizal
INTAN Jurnal Penelitian Tambang Vol. 6 No. 2 (2023): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v6i2.189

Abstract

In simple terms, geothermal classification is determined according to reservoir equilibrium, fluid type, and temperature. Based on the reservoir temperature, geothermal systems are separated into two different systems: dynamic system (convection) and static system (conduction). This system structure is also affected by topography which is further specified as a high-temperature fluid reservoir. The relationship between the characteristics of the hot springs and geothermal potential is instructive to be analyzed. The objective of the analysis is to determine critical parameters: The chemical composition of the water and the source of origin of the water. Hydrogeochemical studies including analysis of major element analysis; ratio stable isotopes δ18O and δ2H of samples from springs, rivers, and wells used to determine the character of hot springs. The primary element examination shows that the sample ions composition from the hot springs is dominated by three types of rock sources: shale; sandstone; and quartzite rocks. It also reveals that sample hot springs can be considered thermal water (based on the Piper Diagram), and classified as water and rock interactions dominant based on the Gibbs diagram.
LAND ARRANGEMENT PLANNING ON RECLAMATION LAND OF PT. MEGA MULTI ENERGY, NORTH BARITO, CENTRAL KALIMANTAN: PERENCANAAN PENATAAN LAHAN PADA LAHAN REKLAMASI PT. MEGA MULTI ENERGI, BARITO UTARA, KALIMANTAN TENGAH Stephani Sandan; Mohammad Nurcholis
INTAN Jurnal Penelitian Tambang Vol. 6 No. 2 (2023): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v6i2.190

Abstract

PT. Mega Multi Energi (PT MME) operates in the coal mining industry which causes land changes, so planning for land reclamation is carried out. This research aims to determine the slope, landform management, and reclamation planning. Results of slope stability analysis to design single slope and overall slope dimensions. A detailed topographic survey has been carried out by PT. MME uses LiDAR mapping with a total work area of ± 5000 Ha. This technology uses the latest advanced LiDAR or Light Detection and Ranging sensor which is designed for activities in the form of topographic surveys and 3-dimensional imaging, operated by plotting millions of laser beam points on objects at one time and then modeling them in the form of a 3-dimensional point cloud. The rocks that make up the slopes in the mining area of PT. MME is dominated by claystone and sandstone. An individual slope design with a height of 10 meters and a slope of 60° shows a safety factor (FK) value of > 1.5. Landform regulation is intended to reduce the speed of runoff, erosion sedimentation, and landslides, the shape and design of the slope must be gentle. Implementation of the reclamation plan starts with land preparation, erosion and sedimentation control, topsoil management, and revegetation.
BUILD UP RATE DIVERSIFICATION IN PLANNING OF DIRECTED WELL DRILLING TRAJECTORIES IN WELL "X" FIELD "Y", WEST PAPUA: DIVERSIFIKASI BUILD UP RATE DALAM PERENCANAAN LINTASAN PENGEBORAN SUMUR TERARAH DI SUMUR “X” LAPANGAN “Y”, PAPUA BARAT Leonardo Davinci Massolo
INTAN Jurnal Penelitian Tambang Vol. 7 No. 1 (2024): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v7i1.214

Abstract

Well "X" in a West Papuan field is intended to be drilled directionally due to geological constraints that hinder vertically drilling trajectory. The drilling operation required standard deflection tools using bent sub which compensates drilling BUR (Buildup Rate) around 0-3 degrees/100 ft. Four BUR test variations were used in this study: 1.50/100 feet, 20/100 feet, 2,50/100 feet, and 30/100 feet. The maximum inclination angles α0max obtained with a target as deep as 9000 feet and a horizontal deviation of 3500 feet were 30.42, 29,240, 28,620, and 28,230. Out of the four scenarios in this analysis, scenario 4 with a BUR of 30/100 ft was found to be the most ideal due to its shortest length of curve in the buildup portion, after taking into account economic aspects and the drilling time necessary. However, along with the choice of a high inclination angle in a directional well, it can potentially cause technical issues such as high drag force, dogleg severity, cutting buildup, etc.
ANALYSIS OF SHOT CONCRETE MATERIAL MIXTURE ON UNDERGROUND MINE BUFFER: ANALISIS CAMPURAN MATERIAL BETON TEMBAK PADA PENYANGGA TAMBANG BAWAH TANAH BODIAN DAVIN PANGGABEAN BODIAN
INTAN Jurnal Penelitian Tambang Vol. 7 No. 1 (2024): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v7i1.226

Abstract

To increase the stability of the opening hole, it is done by increasing the strength of the rock around the opening hole through support. The buffering method used at PT Antam underground is shotcrete. Shotcrete is a cement mixture that is passed through spraying equipment and shot at high speed on the surface of the walls and roof of the tunnel. The research was conducted in the underground area, panel 20. The problem in panel 20 is testing the mixing results that do not reach the target. To answer this problem, tests were carried out on the quality of shotcrete material which included testing the aggregate grain size, moisture content, and mud content. From the results of testing the quality of the material, it was found that there were still coarse aggregates that did not meet the standard requirements of ASTM D-1140 grain arrangement, moisture content in sand ranged from about 2.6% to 6.3%, moisture content in sample VIII was still high, reaching 20.1%, mud content reached 12.3% and 17.5% greater than the percentage value of normal mud content of 5%. The existence of testing the physical properties of this shotcrete mix material to control the quality of the targeted shotcrete and later not harm when it is applied in the field.
RECLAMATION COST CALCULATION OF PT. X IN SORONG CITY, SOUTHWEST PAPUA PROVINCE: PERHITUNGAN BIAYA REKLAMASI PT. X KOTA SORONG PROVINSI PAPUA BARAT DAYA Sinaga, RInda Wati Iriani
INTAN Jurnal Penelitian Tambang Vol. 7 No. 2 (2024): INTAN: Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v7i2.205

Abstract

Reclamation is an effort carried out throughout the mining process to organize, restore, and enhance the quality of the environment and ecosystem, so that the area can function again according to its intended purpose. In the mining industry, companies are required to conduct reclamation. Before carrying out reclamation, the company must calculate the required reclamation costs. PT. X is one of the companies engaged in andesite mining, which is administratively located in Saoka Village, Maladumes District, Sorong City, Southwest Papua Province. After completing the mining activities, PT. X will carry out reclamation by planting pine trees during the period from 2024 to 2028. Based on this, it is necessary to calculate the reclamation costs to determine the expenses the company will incur for this activity. The reclamation cost calculations are based on the Minister of Energy and Mineral Resources Decree Number 1827/K/30/MEM/2018, which outlines the guidelines for implementing Good Mining Engineering Principles. Reclamation costs consist of both direct and indirect costs. Based on the research findings, the total direct and indirect costs that PT. X must incur for reclamation activities from 2024 to 2028 are IDR 359,238,257 and IDR 119,972,490, respectively. Therefore, the total reclamation costs PT. X will incur for the reclamation activities from 2024 to 2028 amount to IDR 479,210,747
ESTIMATION OF MAGNETIC MATERIAL POTENTIAL USING THE ORDINARY KRIGING METHOD IN SAIRO VILLAGE, MANOKWARI REGENCY, WEST PAPUA PROVINCE: ESTIMASI POTENSI MATERIAL MAGNETIK MENGGUNAKAN METODE ORDINARY KRIGING DI KAMPUNG SAIRO KABUPATEN MANOKWARI PROVINSI PAPUA BARATESTIMASI POTENSI MATERIAL MAGNETIK MENGGUNAKAN METODE ORDINARY KRIGING DI KAMPUNG SAIRO KABUPATEN MANOKWARI PROVINSI PAPUA BARAT Nababan, Dasdo Rudi Darsono
INTAN Jurnal Penelitian Tambang Vol. 7 No. 2 (2024): INTAN: Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v7i2.231

Abstract

The calculation of magnetic material resources in the people's mining area in Sairo Village is very important so that the people know the amount of magnetic material in the area. The purpose of this study was to determine the amount of magnetic material and visualize how the distribution of the two materials in the area. The stages carried out to obtain the objectives are sampling, separation of magnetic material, calculating the percentage of magnetic material, statistical analysis, variogram analysis, visualization of resource distribution, ordinary kriging estimation, and resource classification. After calculating and classifying resources, the total resources for magnetic material were inferred = 0 m³, indicated = 24.368 m³, and measured = 74.994 m³.
ESTIMATION OF LOADING AND HAULING EQUIPMENT PRODUCTION AT PT. BAGUS JAYA ABADI, SORONG CITY, SOUTHWEST PAPUA PROVINCE: ESTIMASI PRODUKSI ALAT MUAT DAN ALAT ANGKUT DI PT. BAGUS JAYA ABADI KOTA SORONG PROVINSI PAPUA BARAT DAYA lamria, Renta; Hutapea, Ricardo O.M.
INTAN Jurnal Penelitian Tambang Vol. 7 No. 2 (2024): INTAN: Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v7i2.238

Abstract

Bagus Jaya Abadi is a mining company located in Sorong City, Southwest Papua Province that uses quarry mining to extract andesite rock. The effectiveness of production equipment, such as excavators and dump trucks, is essential to meet production targets. However, operational challenges and weather conditions often hinder the achievement of these targets. This study aims to calculate the daily production rates of Caterpillar 320D and Komatsu PC 200 excavators when loading Hino 300 and Hino 260 dump trucks and evaluate the work efficiency of these machines. Results indicate that daily production rates for different equipment combinations vary between 145.36 m³/day and 221.93 m³/day, depending on the pairing of machinery. These findings provide a foundation for the company to improve production efficiency and develop strategies to address existing challenges.
ANALYSIS OF FLOOD DISASTER POTENTIAL IN THE SAUKOREM AREA, AMBERBAKEN REGENCY, TAMBRAUW REGENCY, SOUTHWEST PAPUA PROVINCE: ANALISIS POTENSI BENCANA BANJIR DI DAERAH SAUKOREM DISTRIK AMBERBAKEN KABUPATEN TAMBRAUW PROVINSI PAPUA BARAT DAYA warijo, alfons; Mayzarah, Erikha M.
INTAN Jurnal Penelitian Tambang Vol. 7 No. 2 (2024): INTAN: Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v7i2.240

Abstract

Floods are hydrometeorological disasters that frequently occur in Southwest Papua Province, including Tambrauw Regency.  This research was conducted in January – July 2024 in Saukorem Village, Tambrauw Regency, West Papua Province. The research area is located at the coordinates 0° 34' 00" South Latitude - 133° 12' 00" East Longitude. This research employed the overlay method with weighting and scoring based on several key parameters such as distance from the river, land use, type of lithology, altitude, slope, and rainfall. The result reveals that the highest flood potential covers an area of 220,9 ha (hectares) or 2,8% of the total area. Moderate flood potential has 683 ha (hectares) representing 8,7% area, while the low flood area accounts for 1202.6 ha (hectares) or 15,3%. Area with negligible potential for flooding covering 4930.5 ha (hectares) with a percentage of 62,8%, followed by areas with no flood potential which cover 811.1 ha (hectares) or 10,4%.

Page 11 of 13 | Total Record : 124

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