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INTAN Jurnal Penelitian Tambang

intan
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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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INTERPRETASI DAN KORELASI DATA RESISTIVITAS UNTUK MENENTUKAN LAPISAN AKUIFER DI RT.002/RW.002 KELURAHAN AMBAN KABUPATEN MANOKWARI PROVINSI PAPUA BARAT Brian Rainstra Maay; Jance Murdjani Supit
INTAN Jurnal Penelitian Tambang Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Aquifer layer modeling is a comprehensive study of the condition of the subsurface layer which is applied conceptually and aims to provide an overview of the pattern of the aquifer layer. The purpose of this study is to know how to model the subsurface layer and to determine the depth of the aquifer layer based on the resistivity value in RT.002/RW.002 Amban Village, Manokwari Regency, West Papua Province. The configuration used in this study is a dipole-dipole configuration. The results show that there are three layers, namely clay with a thickness of 0 – 2.6 m, limestone 2.6 – 37.5 m and sandstone 37.5 – 44.5 m. The aquifer layer is in the third layer, namely sandstone. It is estimated that this layer is a free aquifer which is limited by an impermeable layer above and at the bottom of semi-waterproof at a depth of 25-44.5 m.

KINERJA BELT CONVEYOR PADA UNIT CRUSHING PLANT DI PT. NUR HAZANAH KARYA ABADI DISTRIK PRAFI KABUPATEN MANOKWARI PROVINSI PAPUA BARAT Abdonsons F. Ongirwalu; Yulius G. Pangkung
INTAN Jurnal Penelitian Tambang Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Belt conveyor is an equipment used for transfering material that is widely used in the mining industry. The equipment consists of belts made of various types of materials that are resistant when transporting solid materials. The research aims to figure out the performance of the belt conveyor operated by PT. Nur Hazanah Karya Abadi, to determine the actual and theoretical production of a conveyor belt, and to determine the efficiency of a conveyor belt. The results show the theoretical productions of each belt conveyor fraction is as followed: fraction 1 at 94,396 tons/hour, fraction 2 at 97,164 tons/hour, fraction 3 at 211,566 tons/hour, and fraction 4 at 73,587 tons/hour. The actual productions of each conveyor belt fraction are as followed: fraction 1 at 23,617 tons/hour, fraction 2 at 28,185 tons/hour, fraction 3 at 30,307 tons/hour, and fraction 4 at 8,447 tons/hour. The value of work efficiency on the conveyor belt is 35%. The performance of belt conveyor in PT. Nur Hazanah Karya Abadi, based on the calculation of production and work efficiency, has not really good yet.

ANALISIS NILAI RETURUN ON ASSET RETURN ON EQUITY PERUSAHAAN BATUBARA DI BURSA EFEK INDONESIA Try Bunga Manurung; Juanita R. Horman
INTAN Jurnal Penelitian Tambang Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Return on assets is a company's financial ratios related to profitability measuring the company's ability to generate profits or profits at a certain level of income, assets and share capital. Return on equity is part of the profitability ratio for this ratio shows the success of management in maximizing returns to investors. The data used are financial statement data published on the Indonesia Stock Exchange from 2018 to 2020, from which five companies selected as sample in this research. The results show that, based on the average return on assets, the five sampled companies are classified into very healthy criteria, with the ROA values of PT. Adaro Energy Tbk (5%), PT. Baramulti Suksessarana Tbk (17%), PT. Bayan Resources Tbk (27%), PT. Samindo Resources Tbk (17%), and PT. Harun Energy Tbk (8%). Moreover, based on the average return on equity, PT. Adaro Energy Tbk and PT. Harun Energy Tbk are classified into quite healthy criteria, with the percentages of 8% and 9%, respectively. Meanwhile, PT. Baramulti Suksessarana Tbk, PT. Bayan Resources, and PT. Samindo Resources Tbk are categorized into very healthy criteria, with the percentages of 27%, 49%, and 22%, respectively.

PEMANFAATAN AGREGAT KASAR PT. PULAU LEMON SEBAGAI BAHAN BETON PADA JEMBATAN WITO DAN TALUD WEDONI KABUPATEN MANOKWARI PROVINSI PAPUA BARAT Yosua Ambaa; Hendri P. Perangin-Angin
INTAN Jurnal Penelitian Tambang Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

PT. Pulau Lemon is one of the companies engaged in mining operation, with gravel as its mining material. Therefore, to anticipate the aggregate increase in material demand from the company, it is necessary to carry out a sieve analysis in order to produce the planned size (fraction) according to the needs of aggregate utilization. Based on the results of data processing, the highest sieving efficiency of sifting of coarse aggregate at Wito Bridge is found in sieve number 1, with the percentages of 0.61%. the smallest sieving efficiency is found in sieve number 2 and 1½, which is 0.00%. For the fine aggregate sieving efficiency at Talud Wedoni, the largest sieving efficiency is found in sieve number 1, with the percentages of 0.53%, while the smallest efficiency is in sieving efficiency with sieve number 2 and 1½, which is 0.00%. Moreover, the largest sieving efficiency at Wito Bridge is found in sieve number 4, which is 39.34%, while the smallest efficiency is found in sieve number 100 at 0.01%. The largest sieving efficiency at Talud Wedoni is found in the sieve number 4 at 12.45%, while the smallest efficiency is found in sieve number 100, with the percentages of 0.04%.

ESTIMASI PRODUKSI PENAMBANGAN PADA ALAT MEKANIS MEREK KOMATSU SECARA TEORITIS Fernando Pelipus Hehakaya; Yulius G. Pangkung
INTAN Jurnal Penelitian Tambang Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

This study resulted in theoretical production calculations from the handbook of Komatsu edition 30, which were calculated as coal activities, coal transportation, overburden stripping and overburden transportation. Theoretically production capacity for mechanical equipment production activities theoretically on hydraulic excavator PC 2000-8 for coal is 1,706.25 tons/hour while for overburden is 947.92 Bcm/hour, for PC 1250SP-8 1,086.75 tons/hour while overburden is 1,086.75 tons/hour. 603.75 Bcm/hour, for PC 600 overburden production obtained is 400.00 Bcm/hour while for coal is 720.00 Ton/hour and for PC 500LC-8R coal production is 630.00 Ton/hour while for overburden 350.00 Bcm/hour. The results of the calculations obtained for the HD 785-7 dump truck mechanical device for coal is 506.55 Ton/km while for overburden it is 281.42 Bcm/km, for HD 605-7R it is 332.78 Ton/km while overburden is 184.88 Bcm/km, for HD 407-7 overburden production obtained was 127.17 Bcm/km while for coal it was 228.91 Ton/km and for HD 325-7 coal production was 221.64 Ton/km while for overburden it was 123.13 Bcm/km.

KAJIAN TINGKAT AKURASI DAN KETELITIAN GEOMETRI PETA DASAR DARI HASIL PENGOLAHAN DATA FOTO UDARA UNTUK PEMANFAATANNYA DI SEKTOR PERTAMBAGAN Pangeran S. Panjaitan; Jance Murdjani Supit
INTAN Jurnal Penelitian Tambang Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Orthophoto is an aerial photo with a photographic recording process with the support of a detector or a film detector that has corrected its geometric errors using Digital Elevation Model (DEM) data. DEM data is a digital elevation model that represents the surface topography and Ground Control Point (GCP) or ground control points as a location point that is known or identified in real space on the ground surface. This can be used for mapping purposes without any scale inconsistencies throughout the photo coverage, and for getting a high-resolution scale map, that is corrected referring to geometric accuracy, which aims to be utilized in the mining sector as a base map on a large scale. From the results of the aerial photo data processing, the geometric accuracy of class I is at a scale of 1:500, which is used as a base map for the Mining Permit.

KINERJA PRIMARY FAN T1 TOG PT NHM Patrisia Pulu
INTAN Jurnal Penelitian Tambang Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

PT NHM is a gold mining company located in North Maluku Province that uses an underground mining system. The TOG mine has a relatively high groundwater temperature due to the contact of tectonic activity in the area with meteoric water from the surface. Therefore, the level of clean air required is relatively more so that mining activities in the tunnel can run effectively. To achieve this, the supply of clean air must be balanced with the amount of dirty air released using Axial fan Howden type AFSO 1200/2450 with 560 kW/690 V motors, which are installed in parallel with a fan diameter of 2,450 mm, speed of 989 rpm with a suction capacity of 315 m3/s. The performance of the primary fan T1 TOG in PT NHM was analyzed by calculating the psychometric value of air in the fan, the value of inlet volume, resistance, air power, and efficiency values. Based on the results of data processing, there were three different conditions. The inlet volume value of the 019 fan is 170.753 m3/s, with a resistance of 0.04 Ns/m8 and an efficiency value of 81%. Meanwhile, the inlet volume value of the 018 fan is approximately 173.27 m3/s, with a resistance of 0.04 Ns/m8 and the fan efficiency value of 85%. For the conditions when both fans are operated simultaneously, the inlet volume value is 306 m3/s, with a resistance value of 0.85 Ns/m8, and the value of fan efficiency of 91%. This means that the performance of the primary fan T1 TOG in PT NHM is in good condition even though the inlet volume produced has not reached the production target according to the company's needs of 315 m3/s.

HUBUNGAN STRATEGIS PADA EVOLUSI TEKNOLOGI LEPAS PANTAI DI INDUSTRI MIGAS Agus Denny Unggul Raharjo
INTAN Jurnal Penelitian Tambang Vol. 5 No. 1 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Offshore operation in oil and gas industry defined as any drilling and production operation located or operating on a body of water, at some distance from the shore relatively to what identified as onshore operation which is generally means in land operation. Offshore drilling and production operation was a relatively new industry compare to the history of oil industry itself. Technologies take major part in development of offshore project, technologies make what impossible become possible in offshore industry. Offshore drilling and production industry can be possible because of technology innovation. However the drive to explore offshore resources come from high demand on oil and gas as well as depleted resources in onshore resources. One suggested that there is strategic interaction among entities in oil industry, as for offshore operation the strategic interaction lead to evolution of offshore technology. The strategic interaction between two relatively same profiles oil related company will depend on the cost of technology. There is tendency in oil and gas industry, if one company successful in using a kind of technology the other companies will follow the pad. Technology takes a big part in offshore drilling and production industry. The strategic interaction in offshore industry related to the cost of technology.

PENERAPAN GAME THEORY DALAM PEMASARAN FRAKSI SIRTU PADA PT X DAN PT Y Arif Setiawan; Djusman Bin Aziz; Indra Birawaputra; Bambang Triyanto; Ismiyati
INTAN Jurnal Penelitian Tambang Vol. 5 No. 1 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

The increasing demand for sand and stone materials has resulted in competitions between mining companies in order to meet the need of the material for construction activities, from which it results in conflicts between two parties, two people, or groups of people. Part of the mathematical programming technique used to analyze the decision-making process of competition between two or more parties is Game Theory. The application of game theory is to produce the best strategy that will be used by a company to optimize the marketing of gravel fraction. Instruments or tools used in the research is a questionnaire that includes improving product quality, affordable pricing, improving service quality, establishing an effective corporate work process, and determining the place of inventory. The result is arranged in the form of a payoff matrix and analyzed using the Game Theory, that indicates the competition between PT X and PT Y. The analysis results show that the implementation of those strategies is the best way that can optimize marketing of gravel fraction, so that it can improve the position of profit or loss got saddle point from competition between PT X and PT Y, which is 11. The results also confirm the increase of profit of PT X, from 10 to 11 by applying effective work processes (probability 5:1). In addition, the loss of PT Y could decrease from 12 to 11 by applying strategies to improve the product quality of gravel fraction and determining the stock of the fraction (probability 1:1).

PEMBUATAN SODIUM LIGNO SULFONAT (SLS) CHEMICAL INJECTION PADA PROSES EOR MINYAK BUMI DENGAN METODE SULFONASI MENGGUNAKAN LIMBAH KULIT KACANG TANAH Nur Prasetyo Ponco Nugroho Nugroho
INTAN Jurnal Penelitian Tambang Vol. 5 No. 1 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Sodium lignosulfonate (SLS) is made by reacting lignin with the chemical compound Natium bisulfite (NaHSO3). In this study, lignin was processed from peanut shell waste, that is not economically valuable and tends to be garbage, into high economic value materials. The nutshells are dried, crushed and cooked in an autoclave (gaping vessel) then added Sodium bisulfite (NaHSO3). The use of temperature and pressure that has been varied in the autoclave and the continuous stirring process will produce a thick black liquid smelling pungent with acidic pH. To get a solution that has a neutral pH added NaOH drop by drop. After the pH is neutral, weigh the porcelain cup dry and clean, put the lignin liquid in the porcelain cup, weigh the lignin liquid along with the porcelain cup. Next, the lignin liquid along with the porcelain cup is heated in the oven until the lignin liquid is free from the water content. Once drying process in the oven is finished, the lignin solids in the porcelain cup are weighed. The mass of the weighing minus the mass of the porcelain cup results in the mass of the SLS produced.

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Arif Setiawan

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

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Contact Name Arif Setiawan

Contact Email a.setiawan@unipa.ac.id

Phone +6281248459584

Journal Mail Official a.setiawan@unipa.ac.id

Editorial Address Jl. Gn. Salju, Amban, Kec. Manokwari Barat. Kabupaten Manokwari, Papua Barat. 98314

Location Kab. manokwari, Papua barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Arif Setiawan

Contact Email
a.setiawan@unipa.ac.id

Phone
+6281248459584

Journal Mail Official
a.setiawan@unipa.ac.id

Editorial Address
Jl. Gn. Salju, Amban, Kec. Manokwari Barat. Kabupaten Manokwari, Papua Barat. 98314

Location
Kab. manokwari,

Papua barat

INDONESIA