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All Journal Jurnal Pertambangan JGE (Jurnal Geofisika Eksplorasi) Jurnal Geomine JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal GEOSAPTA International Journal of Applied Sciences and Smart Technologies Abdimas Galuh : Jurnal Pengabdian Kepada Masyarakat Madaniya JNANALOKA Jurnal Pengabdian Masyarakat (ABDIRA) Jurnal PkM (Pengabdian kepada Masyarakat) Idea Pengabdian Masyarakat Matriks Teknik Sipil Journal of Geology and Exploration Journal of Mining Insight Journal of Engineering Science and Technology Applications
Alam Budiman Thamsi
Universitas Muslim Indonesia
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Journal : Journal of Engineering Science and Technology Applications

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Efisiensi Kerja Pemboran Eksplorasi Pada PT Vale Indonesia: Efficiency of Exploration Drilling Work at PT Vale Indonesia Hasbi Bakri; Alam Budiman Thamsi; Sahabuddin Sahabuddin
Journal of Engineering Science and Technology Applications Vol. 1 No. 1 (2023): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v1i1.70

Abstract

Exploration activities nickel (Ni) which is one of the stages, is where the exploratory drilling work efficiency is one of the main factors that can describe how good a job has been done. The purpose of this study is to analyze the efficiency of exploration drilling. This research method is done by direct observation in the field. The data that was obtained was a record time of any activities during the working day in the form of exploration drilling activity, inserting the inner tube in the core barrel, an empty lap, then taking out further drilling in the core barrel inner tube, prepare the inner tube, add pipes, and re-inserting the inner tube core barrel. There are other activities that the problems of the inner tube not landing. The inner tube can not rise, smoothing supplies drilling, pulling out the pipe, moving the drilling tool and equipment, preparation of drilling, transportation, accessibility, preparatory work crew, safety talk/meeting, checking tool, refueling, wait for dozer, crew return preparations, waiting for a supervisor/geologist, waiting for the crew, weather problems, rest, waiting to go home, repair, and water issues. This study obtained an efficiency increase of 44.43% in drilling work. Concluded the drilling work efficiency is still below the working efficiency standards applied by the company by 50%.
Perbandingan Kadar Endapan Nikel Laterit Pada Front Penambangan Dengan Stockpile Pada PT Ceria Nugraha Indotama: Comparison of Laterite Nickel Deposit Levels on the Mining Front with Stockpile at PT Ceria Nugraha Indotama Ardhana, Muh. Reza; Thamsi, Alam Budiman; Anshariah, Anshariah
Journal of Engineering Science and Technology Applications Vol. 1 No. 2 (2023): Journal of Engineering Science and Technology Applications
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v1i2.182

Abstract

PT Ceria Nugraha Indotama is a company engaged in mining laterite nickel ore in Wolo sub-district, Kolaka district, Southeast Sulawesi province. In lateritic nickel ore mining activities, there is often a difference in levels of laterite nickel ore when it is still in the mining front and after being transferred to the stockpile. This research is to determine the proportion of differences in the levels of Ni, Fe, MgO and SiO2 on the mining front with the stockpile and to determine the factors that influence changes in nickel content. The method used in this study is the grab sampling method in front mining and stockpile. The results of this study are based on the results of the analysis, obtained data on the levels of Ni, Fe, MgO and SiO2 on the mining front with a stockpile, the Ni content has a difference of 0.05% and the Fe content has a difference of 0.34%, the two minerals have the highest grades on the mining front. mining and MgO content has a difference of 2.68% and SiO2 content has a difference of 8.87%, the two minerals have the highest grade in the stockpile. Factors that influence changes in nickel content are the heterogeneous distribution of ore, the position of the waste above the ore and the rainy weather that occurs in the field, operator and sampling skills.
Analisis Dampak Kenaikan Suhu Terhadap Penurunan Kualitas Batubara Muara Bengalun PT Mitrabara Adiperdana Tbk: Analysis of the Impact of Temperature Increase on the Decrease in Coal Quality of Bengalun Muara PT Mitrabara Adiperdana Tbk Bakri, Suriyanto; Thamsi, Alam Budiman; Muhdi, Irawan
Journal of Engineering Science and Technology Applications Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i1.194

Abstract

Umumnya, batubara di Indonesia dimanfaatkan sebagai bahan bakar yang biasa disebut batubara uap atau sebagai bahan baku industri baja. Meningkatnya permintaan bahan bakar batubara untuk industri menyebabkan PT Mitrabara Adiperdana Tbk., terus menerus meningkatkan produksinya. Batubara yang dihasilkan dari front penambangan pada umumnya tidak langsung dikirim ke konsumen sehingga batubara tersebut harus ditumpuk di tempat penumpukan yang disebut dengan istilah stockpile (Area timbunan). Permasalahan utama yang dihadapi PT Mitrabara Adiperdana Tbk., dalam penumpukan batubara pada stockpile adalah terjadinya peningkatan temperatur. Oleh sebab itu, perlu dilakukan analisis dampak apa saja yang terjadi pada area timbunan yang mempengaruhi kualitas batubara pada perusahaan ini. Metode penelitian diawali dengan mencari literatur laporan penelitian terdahulu dan data lainnya. Selanjutnya dilakukan observasi dan analisis kondisi di lapangan. Lokasi survey dilakukan di area PT Mitrabara Adiperdana Tbk., Kabupaten Malinau Kalimantan Utara. Pengambilan sampel dilakukan pada stockpile Muara Bengalon. Tahap ketiga dilakukan analisis data dalam menganalisis kualitas batubara di PT Mitrabara Adiperdana. Hasil penelitian menunjukkan bahwa terjadi peningkatan suhu batubara di stockpile. Pada pagi hari, suhu batubara berkisar antara 26,50ºC hingga 44,71ºC, sedangkan pada siang hari suhu meningkat menjadi 30,50ºC hingga 50,85ºC. Peningkatan suhu ini berdampak pada penurunan kualitas batubara, yang berpotensi menyebabkan swabakar
Analisis Dampak Aktivitas Industri Minyak Dan Gas Terhadap Sektor Ekonomi Di Kabupaten Seram Bagian Timur: Analysis of the Impact of Oil and Gas Industry Activities on the Economic Sector in East Seram Regency Asmiani, Nur; Rahareng, Sutriani; Thamsi, Alam Budiman; Aswadi, Muhammad
Journal of Engineering Science and Technology Applications Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i1.200

Abstract

PT Kalrez Petroleum Seram Ltd is a company engaged in the oil and gas mining sector. The company started operations in 2001 and is part of South Sea Petroleum Holdings Ltd, based in Hong Kong. This study aims to analyze the base sectors that can support economic growth and examine the potential of the mining and quarrying sector in supporting economic development in the region. The data used in this study is secondary data obtained from various related agencies, one of which is the Central Statistics Agency (BPS). The data analyzed includes the Gross Regional Domestic Product (GDP) of Eastern Seram Regency and Maluku Province based on constant prices by business field in the 2011-2020 period. This study uses Location Quotient (LQ) and shift-share analysis methods to identify the base sector and analyze the dynamics of economic growth. The results of the analysis show that the base sectors in this area include the fisheries, forestry, and agriculture sectors with an LQ value of 1.06; mining and quarrying sector with an LQ value of 11.37; real estate services with an LQ value of 1.13; and health services and social activities with an LQ value of 1.07. However, the growth of the value of GDP in the mining sector during the 2011-2020 period experienced a significant decrease, namely -6,323.94 million rupiah. Other growth indicators, namely the Proportional Growth Contribution (KPP) of -0.22 and the Regional Growth Contribution (KPPW) of -0.14, also show that the mining and quarrying sector is relatively slow in growth, although it remains competitive at the regional level. The decline in the value of KPP and KPPW with a negative sign (-) in the mining and quarrying sector confirms that this sector is experiencing suboptimal growth. Although its competitiveness is relatively still there, this persistent decline indicates the need for more attention to improving efficiency and innovation within the sector. This is important so that the mining and quarrying sector can contribute more to improving the regional economy in a sustainable manner. To support the development of this sector, strategic policies, investment in technology, and synergy between the government and industry players are needed to overcome existing challenges
Kajian Revegetasi Pada Aktivitas Reklamasi Lahan Bekas Tambang Batubara: Revegetation Study on Reclamation Activities of Former Coal Mine Land Nurwaskito, Arif; Akbar, Muhammad; Thamsi, Alam Budiman; Aswadi, Muhammad
Journal of Engineering Science and Technology Applications Vol. 2 No. 1 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i1.202

Abstract

Before carrying out mining, it must take into account the impact of mining activities, namely changes in the landscape, it is necessary to re-vegetate and replant. This research was conducted to find out and provide a solution to the problem of revegetation failure that often occurs to achieve revegetation success and to identify and improve the factors that cause many dead plants. The location of this research was conducted in Bantuas Village, Palarang District, Samarinda Municipality, East Kalimantan Province, the data collection technique was carried out by direct collection in the field by taking data on plant types and soil pH, data processing was carried out by processing the collected data by entering data into in excel software aims to make the data neatly arranged and the data analysis method used is qualitative. There are several factors that cause plants to die, namely due to an error in selecting plant species and not paying attention to acidic soil pH. The way to overcome this is by choosing plant types that are suitable for the revegetation area and using dolomite to neutralize acidic soil pH and to achieve success it is necessary to pay attention to plant types, maintenance, planting preparation, monitoring.
Analisis Uji Emisi Pada Asap Hasil Pembakaran Briket dari Campuran Batubara dan Limbah Plastik LDPE: Emission Test Analysis On Bricket Combustion Smoke From Mixed Coal And LDPE Plastic Waste Asmiani, Nur; Lestari, Ayu; Thamsi, Alam Budiman
Journal of Engineering Science and Technology Applications Vol. 2 No. 2 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i2.206

Abstract

This research was conducted by mixing coal and Low-Density Polyethylene (LDPE) waste. This study aimed to determine the smoke resulting from burning briquettes with a calorific value of 9,187 Kcal/gr. Judging from the emission levels of carbon monoxide (CO), sulfur dioxide (SO2), and nitrogen oxides (NO2), it becomes a consideration for the feasibility of briquettes be produced as alternative fuels, harmful or not for human health and the surrounding environment. They are first testing the quality of the briquettes and the smoke emissions from burning briquettes. From the test results, the sulfur content is 0.01%, the moisture content is 1.15%, the ash content is 10.22%, the volatile matters are 87.76%, and the calories are 9187.64 Kcal/gr. Then the smoke resulting from burning briquettes was tested for emission levels of carbon monoxide (CO), sulfur dioxide (SO2), and nitrogen oxides (NO2). The results obtained with a high value and exceed the maximum standard that has been set by PERMEN ESDM No. 047 of 2006, namely CO 13715 mg/Nm3 and SO 2550 mg/Nm3, while the NO 2 produced does not exceed the maximum standard set by PERMEN ESDM No. 047 of 2006 which is 7 mg/Nm3. Based on the test results, it can be concluded that the briquettes produced have the potential to pollute the environment and are dangerous if inhaled at high levels by humans. The resulting briquettes are also unfit to be produced as an alternative fuel.
Analisis Perbedaan Kadar Nikel Antara Front Penambangan dan Stockpile Pada PT Rockstone Multi Mining Indonesia: Analysis of the difference in Nickel Grade Between the Mining Front and Stockpile at PT Rockstone Multi Mining Indonesia Maulana, Wahyu; Chalik, Citra Aulian; Thamsi, Alam Budiman
Journal of Engineering Science and Technology Applications Vol. 2 No. 2 (2024): Journal of Engineering Science and Technology Applications
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i2.207

Abstract

PT Rockstone Multi Mining Indonesia Central Sulawesi is one of the companies that manages laterite nickel ore into ferronickel (FeNi) products. This study aims to determine the percentage of nickel content found in the mining front to the stockpile and to find out what percentage of the change in nickel content from the mining front to the stockpile and analyze the factors of the change in the level from the mining front to the stockpile. This study uses the field observation method. In the mining front data , with a total of 17 domes, the average level of Ni Front of reclamation is 1.91 while the average level of Ni stockpile is 1.90. When summing up the average value of the mining front and stockpile levels , a decrease in nickel content of 0.01% was obtained. The factors that cause changes in nickel levels are waterlogging, dredging of the Stockpile floor, the use of used sacks for samples, unclean buckets, unclean dump truck tubs, sampling errors, and preparation errors.
Studi Kualitas Silika Menggunakan Metode Geokimia Daerah Tahi Ite Kabupaten Bombana, Provinsi Sulawesi Tenggara: Silica Quality Study Using Geochemical Method in Tahi Ite Area, Bombana Regency, Southeast Sulawesi Province Almarabi, Laode Muhammad Imaduddin; Bakri, Hasbi; Thamsi, Alam Budiman
Journal of Engineering Science and Technology Applications Vol. 3 No. 1 (2025): Journal of Engineering Science and Technology Applications
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v3i1.218

Abstract

Silica is a rock weathering mining material containing the main mineral, silica (SiO2). Quartz sand is widely used in Indonesia, such as in the glass industry, cement industry, refractory bricks, and as a furnace coolant. The purpose of the study was to determine the carrier minerals of quartz sand and associated minerals in the Tahi ite area of ​​Bombana Regency, to determine the geochemical composition of quartz sand, and to determine the quality of quartz sand based on the Indonesian National Standard (SNI). The location of this study is in Southeast Sulawesi Province, Bombana Regency. This research method uses XRD (X-ray diffraction) analysis and XRF (X-ray fluorescence) analysis which has Quartz (SiO2), Calcite (CaO3), Muscovite (Al3HKO12Si3), Kaolinite (Al2H4O9Si2), Albite (AlNaO8Si3), Chabazite (CaK2Na2Mg). Silica deposits have elements (SiO2) 46.50% and Aluminum Oxide compounds (Al2O3) 24.33% and have larger elements (SiO2) 58.28% and Aluminum Oxide compounds (Al2O3) 25.80%.
Studi Losstime pada Kegiatan Produksi Pengupasan Tanah Penutup Pit Diamod PT Ceria Jasatambang Pratama: Study Of Lost Time in the Production Activities of Cover Soil Stripping at The Diamod Pit of PT Ceria Jasatambang Pratama Ningsih, Apriyana; Thamsi, Alam Budiman; Firdaus
Journal of Engineering Science and Technology Applications Vol. 3 No. 2 (2025): Journal of Engineering Science and Technology Applications
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v3i2.296

Abstract

PT Ceria Nugraha Indotama, precisely in the diamond pit managed by the contractor PT Ceria Jasatambang Pratama, there are 2 overburden stripping fleets, based on the production target data for March 2025, fleet 1 is 7,731 Bcm and fleet 2 is 3,257 Bcm with actual production of fleet 1 being 4,243.29 Bcm and fleet 2 being 5,365.00 Bcm. This research aims to find out the value and what are the losstime components of the load excavation tool in the overburden soil stripping activity at pit diamond 01 and pit diamond 02 of PT Ceria Jasatambang Pratama in March 2025. This activity is very important to support the smoothness of the nickel ore mining process. The research was conducted with field observation methods as well as primary and secondary data processing using microsoft excel software. The results of the study showed that the actual loss of time that was identified came from five main components, namely: rain and slippery roads (slippery), late starting work early shifts, breaks that started too early, delays in returning to work after a break and stopping work too early. Total losstime for one month in fleet 1 was recorded as 65 hours (average 2,2 hours per month), while fleet 2 was 60 hours (average 2,00 hours per month). This value shows that most of the effective working time is wasted due to these obstacles. The actual productivity of each fleet is calculated based on work efficiency, cycle time, swell factor and fill factor. Fleet 1 produces productivity of 812,25 tons/day and fleet 2 of 1,410,05 tons/day. This result shows the non-achieval of the production target in fleet 1, which is caused by the difference in bucket capacity on the loading and unloading equipment and the high loss time value. Suggested loss time reduction efforts include improving work discipline, implementation of P5M activities (five-minute talk), daily inspection (P2H), and regulation of refueling and slippery activities. This research is expected to be the basis for decision making in improving the operational efficiency of overburden mining. The average monthly value for fleet 1 was 2.2 hours with the losstime component being influenced by taking breaks too early, while for fleet 2 it was 2.00 hours, with the most influential losstime component consisting of starting late after a break.
Karakteristik Mineralogi Batubara Desa Tiktok Kecamatan Baraka Kabupaten Enrekang: Mineralogical Characteristics of Coal in Tiktok Village, Baraka District, Enrekang Regency Firaldy S; Budiman, Agus Ardianto; Thamsi, Alam Budiman
Journal of Engineering Science and Technology Applications Vol. 3 No. 2 (2025): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v3i2.297

Abstract

Coal is a solid, combustible sedimentary rock formed from the decay of ancient plants. Coal is brown to black in color and undergoes physical and chemical changes that increase its carbon content. The purpose of this study was to determine the mineral composition of the coal in the area. The sampling method used channel sampling, based on research conducted using XRD, obtained results: the upper sample was composed of quartz (69.8%), graphite (30.2%), the middle sample was composed of quartz (37.6%), graphite (33.8%), and albite (28.8%), and the lower sample was composed of albite (41.2%), quartz (30.0%), and graphite (28.8%).
Co-Authors A. Arizal A. F. Heriansyah A. Maulana A. S. Munir Abdul Salam Munir Agus A Budiman Agus Ardianto Budiman Ahmad Fauzie Ahmad Gazali, Ahmad Alfian Nawir Alfian Nawir Alfian Nawir Almarabi, Laode Muhammad Imaduddin Andi Fadli Heriansyah Andi Fahdli Heriansyah Anshariah Anshariah Anshariah Anshariah Anshariah, Anshariah Aprilia, Riska Dwi Ardhana, Muh. Reza Arif Nurwaskito AYU LESTARI Badduwahe, Harianto Bakri, Hasbi Bakri, Hasbi Bakri, Suriyanto Bakri, Suryanto Budiman, Agus Ardianto C. A. Chalik C. D. Sangadji Chalik, Citra Aulian Dirgahayu Lantara Djamaluddin Djamaluddin E. P. Umar F, Firdaus F. Firdaus F. N. Yusuf Farizah Dhaifina Amran Febrianto Wajar, Kurniawan Firaldy S Firdaus Firdaus F Firdaus Firdaus Firman Nullah Yusuf Fitri Amalia H. Anwar Habibie Anwar Habibie Anwar Harmitun, Harmitun Harwan Harwan Harwan, Harwan Hasbi Bakri I. Nur Idris Juradi, Muhammad Irwan, Muhammad Reza Ardhana Irzal Nur, Irzal Izzulhaq Ainunnur L.O.M.Y. Amsah Limbanadi, Iftitah Vinny Aurelia M. Aswadi Maharza, Agvir Fajri Mais Ilsan Miftah Farid Muhammad Akbar Muhammad Aswadi Muhammad Furqan Al Faruqi Muhammad Idham Farid Muhammad Nur Alim Muhdi, Irawan Nasrullah Nasrullah Nawir , Alfian Nawir, Alfian Ningsih, Apriana Ningsih, Apriyana Nompo, Supardin Nur Asmiani Nurhawaisyah, Sitti Ratmi Nurliah Jafar Nurliah Jafar Nurliah Jafar, Nurliah Nurwaskito, Arif Pangeran Sulfahmi Prasetyawati Umar, Emi R. M. Ismail Rachman, Muhammad Fathur Rahareng, Sutriani Rahma, Kismu Ratmi Nurhawaisiah, Sitti Rauf Husain, Jamal Reynaldhi Yogi Pranata S. R. Nurhawaisyah Sahabuddin Sahabuddin Sanjaya, Harta Saputra, Isroq Aditya Ekyan Sri Widodo Sukamto, Purwoto Suryanto Bakri Syamsul Bakhri Tholib, Mohammad Tri Andriyani Kandora Tsalis Kurniawan Husain Tukloy, Muh. Yusril Affandy Wahyu Maulana, Wahyu Wakila, Muhammad Hardin Wardana, Lubis Widodo , Sri