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All Journal Journals Mining Engineering : Bina Tambang Sumatra Journal of Disaster, Geography and Geography Education Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Mining Journal Jurnal Teknologi Informasi dan Pendidikan Science and Environmental Journals for Postgraduate Jurnal Ilmiah Multidisiplin Nusantara Gudang Jurnal Multidisiplin Ilmu Indonesian Mining Journal Menulis: Jurnal Penelitian Nusantara
Mulya Gusman
Universitas Negeri Padang
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Evaluasi Kinerja Long Belt Jalur 71 Untuk Pengangkutan Limestone di PT. Semen Padang Kecamatan Lubuk Kilangan Provinsi Sumatera Barat. Jeffrey Leonardi Nurkamal; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 7, No 1 (2022): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v7i1.117680

Abstract

. PT Semen Padang is one of the departments in the oldest cement company in Southeast Asia, namely PT Semen Padang. The mining department is tasked with supplying the company's basic needs, namely limestone or limestone as raw material for cement production. The mining department of PT Semen Padang is located about 10 km to the east of the factory site so that in delivering limestone material PT Semen Padang uses a belt conveyor as the material conveying medium.The evaluation carried out on the belt conveyor which has a small capacity is carried out by changing the gear box specifications to a higher specification in accordance with the maximum capability of the belt so that it is expected that the speed of the conveyor belt will increase and increase the capacity of the conveyor belt so that production and material delivery can be maximized and can meet the company's limestone production target of 26,181 tons/day, in December there were several days that did not meet the production target and the lowest was only 4,500 tons/day. Recommendations to increase the productivity of the 6A1J03 belt conveyor with a speed of 1.5 m/s, an angle of 20° and a belt width of 3000 mm with a yield of 2939,632 tons/hour and for a 6A1J10 belt conveyor with a speed of 2.5 m/s, an angle of 35° and belt width 1600 mm with a yield of 2587.02 tons/hour.
Evaluasi Dan Penyesuaian Sistem Ventilasi Pada Tambang Batubara Bawah Tanah Lubang SD-C2 Manual PT. Nusa Alam Lestari Kecamatan Talawi kota Sawahlunto Provinsi Sumatera Barat khazana tulistra; mulya gusman
Journals Mining Engineering : Bina Tambang Vol 7, No 2 (2022): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v7i2.119057

Abstract

The ventilation system in Hole SD-C2 PT. Nusa Alam Lestari is a forcing system and does not apply an exhaust fan. So that dirty air from the mining front is not immediately transported out, and the clean air that flows from the main blower is mixed with dirty air coming from the mining front. Some leaks are still detected in the ventilation line. Leaks are still detected in the ventilation path at a depth of 2 m, 30 m, 50 m, 60 m, and 70 m from the opening. After taking measurements at several points, the temperature value in the SD-C2 Manual Hole is 27-290C. Conditions that exceed Kepmen 1827 K/30/MEM/2018. The research method used is the Applied Method (Sugiono, 2013:2). The data sources used are primary data and secondary data, with problem-solving using quantitative and qualitative data. Solving the problem by calculating the air requirement for workers, tools, and dilution of methane gas to get the total air requirement. The total amount of air required at the underground mine of PT. Nusa Alam Lestari at the location of the SD-C2 Manual opening for 15 workers (0.45 m 3 /s), the air required in the work front is (6.6248 m 3 /s) and to dilute methane gas (0.099 m 3 /s ) with the overall air quantity (10.411 m 3 /s). Based on the calculation of the required air quantity, the hole requires 4 blowers to meet these needs, and to make the condition of the hole more comfortable, it is necessary to add a suction fan unit to speed up the transportation of polluted air out of the hole. Ventilation system modeling produces a 3D model of the ventilation system before and after the addition of the blower.
Analisis Kinerja Alat Gali Muat Dan Alat Angkut Untuk Mencapai Target Produksi 20.000 Ton/Bulan Pada Penambangan Batu Kapur Di PT. Anugrah Halaban Sepakat, Kabupaten Lima Puluh Kota, Sumatera Barat trihadma trihadma; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 7, No 2 (2022): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v7i2.119011

Abstract

PT. Anugrah Halaban Sepakat is a limestone mining company which is located in Laharkumbuh, fifty cities. In itsmining activities, the digging and loading equipment used by PT. Anugrah Halaban agreed is 1 unit of Volvo Pc 200 Excavatorand 2 units of Mitsubishi Colt Diesel 125 Ps Dump Truck. PT. Anugrah Halaban Agreed in area 1a set a limestone productiontarget of 20,000 tons / month, while the realization of limestone production in October was 11,067 tons. From the realizationdata, it can be concluded that limestone production in area 1a in October 2021 did not reach the target set by the company.Inorder for the limestone production target to run optimally, it is necessary to carry out a match factor analysis and furtherproductivity analysis regarding the working hours of the tool, look for causes and actions taken to achieve the target and makeimprovements to optimize the performance of the digging tool. One of the appropriate methods used in overcoming these problemsis the Overall Equipment Effectiveness (OEE) method which is a production process performance measurement tool that canmeasure various losses that occur and identify potential improvements. achieve production targets. After that, the fishbone methodwas used to find the cause and effect that caused the production to not be achieved, then an effort was made to improve the losstime which caused the reduction in the effective working hours of the digging tool that had been planned by the company with theapplication of the 5W + 1H technique. After analysis and improvement efforts, the match factor value was 1 of 0.41 and the totallimestone production on the Volvo Pc 200 Excavator was 72,982.31 tons and the Mitsubishi Colt Diesel 125 Ps Dump Truck was27,982.31 tons, which means it has reached the target. even exceeding the production target of 20,000 tons and the OEE value ofeach tool obtained by 61%, 27% and 26%. However, the OEE value is still < 85% of the world class standard OEE value, whichis 85% and there is still room for improvement.
Perencanaan Stockpile Pelabuhan pada Coal Handling Facility PT. Surya Global Makmur Kecamatan Taman Rajo, Kabupaten Muaro Jambi, Provinsi Jambi Femi Audya Syifa; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 7, No 3 (2022): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v7i3.120593

Abstract

PT. Surya Global Makmur is a company that produces coal needs which is currently in the construction stage for a Coal Handling Facility with a Terminal for Self Interest (TUKS) port on an area of ±11 hectares located in Muaro Jambi Regency, Jambi Province. The port will be used as a temporary stockpile, before the coal can be transported back by barge to consumers. Stockpile has a function as a storage place for coal and requires management that must be in accordance with the process that coal will go through. The purpose of this research is to design a stockpile that will be implemented as a coal storage management. The principle used in this study is the principle of stockpile management, namely the First In First Out (FIFO) system, which means that the first coal to enter must be the first coal to leave the stockpile area.Based on the results of the coal pile design in the stockpile area of PT. Surya Global Makmur has 7 piles of coal in the shape of a pyramid for 3 types of coal calories, namely low calories, medium calories and high calories. In the simulation of coal delivery within a period of 30 days there is a stockpile of coal in the stockpile area of 40,000 tons and is adjusted to the results of calculations using Surpac 6.6.2 software. namely 141,199 tons, the stockpile capacity of PT. Surya Global Makmur is adequate to accommodate the amount of coal. The number of tools needed in the Coal Handling Facility stockpile area are 3 units of the WA380-7 wheel loader, 4 units of the PC300-8 excavator and 5 units of the Mercy 3336K dumptruck
ANALYSIS OF EXPLOSIVE ENERGY DISTRIBUTION AT PIT 7 WEST PT. MAKMUR MANDIRI UTAMA BINUNGAN SUARAN - BERAU, EAST KALIMANTAN PROVINCE Mulya Gusman; Fellya Septia Fauzi; Andree Octova
Indonesian Mining Journal Vol 25, No 2 (2022): INDONESIAN MINING JOURNAL, Vol. 25 No. 2, October 2022
Publisher : Puslitbang tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol25.No2.2022.1346

Abstract

Blasting geometry and blasting material filling are closely related to the rock mass characteristics and the geological conditions to obtain ideal fragmentation. Blastability Index analysis, including Description of Rock Mass, Combined Plane Spacing, Combined Plane Orientation, Specific Gravity Influencey, and Hardness, are the alternative geometry experiment conducted to overcome the problem of rock fragmentation so that the speed of excavation equipment can increase according to the productivity of Komatsu PC2000 plan at PT. BUMA Jobsite BINSUA. Furthermore, the actual rock values obtained from blasting location and alternative geometry recommendations using R.L.Ash theory combined with Vertical Energy Distribution theory. In the C2 layer with a rock factor value of 5.95, the recommended load is 7.2 m, space is 8.3 m, and the VED explosive power is 48%. In layer D2 the rock factor value is 6.89 with a load of 7.5 m, space of 8.3 m, and 55% VED explosive charge. While in the DU layer, the rock factor value is 6.39 with a load of 7.3 m, 8.4 m space, and 51% VED filling of explosives. Prediction of blasting fragmentation analysis using Kuz-ram theory obtained fragmentation > 100 cm, namely 14.99% for the C2 layer, 14.84% for the D2 layer, and 14.82% for the DU layer.
Desain Optimalisasi dan Penjadwalan Produksi Penambangan Batubara Pada Pit Granit Extend Seam 6 PT. Cipta Bersama Sukses Desa Beji Mulyo Provinsi Sumatera Selatan Ravilqi Medri; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 8, No 1 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i1.122176

Abstract

PT. Cipta Bersama Sukses has two Granit Extend pit mining locations: seam 5 and seam 6. On August 8, 2022, an avalanche occurred which covered the seam 5 mining area so that coal-getting activities or coal production could not be continued. because this condition was considered unsafe and inefficient. Then the mining plan changed to the seam 6 area, So it is necessary to design the optimization of the seam 6 area, design the coal getting for September and October 2022, as well as production scheduling so that mining activities are well planned. Based on the optimization design in August 2022, the seam 6 area obtained 43.248,117 tons of coal and 304.293 bcm of overburden, and the pit design in September 2022 obtainedan  overburden of 306.198 bcm overburden and 93.017,183 tons of coal, while in October 2022, overburden was obtained of 323.053 bcm and 102.160,480 tons of coal. To achieve the production target, production planning is required which aims to calculate unit requirements for mining activities. Based on the analysis, the number of fleets needed for overburden removal activities is 6 fleets consisting of 3 fleets with 4 DT units each, 1 fleet with 2 ADT units and 2 fleets with 3 DT units each. The amount of overburden production is 310,380.66 bcm Whereas for coal-getting activities, 1 fleet consisting of 3 DT units is needed with a total production of 47.178,60 tons.
Evaluasi Kemampuan Alat Gali Muat Excavator SANY SY500H Untuk Mencapai Target Produksi Pengupasan Overburden 184.571 BCM/Bulan Menggunakan Metode Overall Equipment Effectiveness Di Pit A PT. Mandiangin Batubara Kab.Musi Banyuasin Provinsi Sumatera Selatan Muhammad Luthfi; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 8, No 1 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i1.122161

Abstract

PT Mandiangin Batubara targets overburden stripping production in June 2022 of 184,571 bcm in the highwall bottom area of pit A, while for the realization of the ability of the SANY SY500H Excavator, the resulting production is only 121,347 bcm / month. The non-achievement is also due to the low effective working time which is only 367.76 hours / month and 358.74 hours / month from the available time of 641 hours / month.Efforts that can be made to analyze based on the problem are in the form of analysis using the overall equipment effectiveness method and determining losses based on the six big losses of equipment. Then proceed with grouping the root cause of the problem of non-achievement of production, namely with the Fishbone diagram. From the results of the analysis based on the six big losses, it was obtained that the highest losses occurred in Equipment Failure Losses of 42.62% and 44.03% respectively. After repairing the loss time, the total production of Overburden stripping was 221,925 bcm which means that the results of these improvements can exceed the production target by increasing the OEE value of the digging and loading equipment by 48% and 54% respectively.
Rancangan Teknis Dan Analisis Biaya Reklamasi Pada Area In Pit Dump X Site Pulau Pakal PT. Aneka Tambang Tbk. UBPN Maluku Utara Hafizurahman Dwi Saputra; Rusli HAR; Mulya Gusman; Tri Gamela Saldy
Journals Mining Engineering : Bina Tambang Vol 8, No 1 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i1.122149

Abstract

PT. Antam Tbk. UBPN Maluku Utara has converted a former mining land into an in-pit dump for the disposal of low-grade cover soil and materials. If the area is already covered by cover soil, the area must be immediately reclaimed. Special treatment and attention are required in handling waste materials in the X in-pit dump area, as the waste material belongs to PAF material which has the potential to cause acid rock drainage problems. Based on the calculation, the bench width is 3.5 m, the single slope slope is 350, the height is 8 m and the backslope is 5%. Based on measurements, the area of stage 1 is 19,537.182 m2, stage 2 is 21,537.501 m2 and stage 3 is 13,086.461 m2. From the calculation of material 1volume, different results were obtained between the existing landfill plan, with the estimated regrading completion time ranging from 37 to 151 days, and for 19 days for revegetation in stage 1, stage 2 for 24 days and stage 3 for 13 days. For the check dump, the total volume is 10,565.62 m3 with a completion time of 14 days. The total reclamation cost ranges from Rp 451,223,407 to the largest Rp 35,365,018,549.
Distribution of Potential Resources, Reserves and Use of Coal in Indonesia Fitrya Monica; Marisa Meliana Fitri; Iswandi Umar; Ali Amran; Mulya Gusman
Science and Environmental Journal for Postgraduate Vol 5 No 2 (2023): Science and Environmental Journals for Postgraduate (SENJOp)
Publisher : Pascasarjana, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/senjop.v5i2.191

Abstract

Indonesia has abundant coal resources and is a well-known mining sector as a producer and exporter of coal. Even though Indonesia has adequate coal reserves, the ever-increasing energy needs pose challenges in meeting domestic and export needs. Therefore, this study aims to analyze the potential of coal resources and reserves in Indonesia, their utilization in the electricity sector, and find solutions for sustainable use of non-renewable energy. This research uses the method of literature study or literature search. The data sources used are accredited academic journals and related publications, as well as secondary data from the Geological Agency of the Ministry of Energy and Mineral Resources [ESDM] and Recapitulation of Coal Reserve Balance in Indonesia. The results of this study classify coal resources and reserves based on SNI 5015 - 2019 classification. There are several categories, such as inferred coal resources, indicated coal resources, measured coal resources, probable coal reserves, and proven coal reserves. Geologically, economically valuable coal deposits are found in Sumatra and Kalimantan. Coal quality can be classified based on calorific value, such as low, medium, high, and very high calories. With a better understanding of available coal resources, it is hoped that sustainable solutions for future energy needs will be developed.
Analisis Kuantitas Dan Kualitas Udara Pada Sistem Ventilasi Untuk Keamanan Dan Kenyamanan Pengunjung Di Lubang Pendidikan PT. Bukit Asam Tbk. UPO Sawahluwung Talawi Sawahlunto Sumatera Barat Muhammad Abbil Raihan; Bambang Heriyadi; Mulya Gusman; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.125026

Abstract

The ventilation system is important in underground mines, because the system flows clean air into the mine. If this system is not done or not as it should be, it will cause insecurity and discomfort in the hole. Lubang Pendidikan is a learning facility that has been provided by PT. Bukit Asam Tbk UPO, visitors can learn how to mine well underground, educational pits using a suction ventilation system and using a 2 x 50 Hp fan machine. So a calculation is needed to find out the number of visitors who can enter in safe and comfortable conditions in the hole. Air quantity and quality are parameters that must be known to determine the number of visitors who can enter the hole, air quantity consists of hole area data and wind speed, while air quality consists of gas content data, wet temperature, dry temperature and relative humidity. The evaluation results obtained the maximum number that can enter in safe and comfortable conditions, namely fan machine A is 25 people, fan machine B is 30 people, and fan machine 2 x 50 Hp is 100 people.
Co-Authors Abdul Razak Adree Octova Afaz, Triyanchy Afkar Afkar Afrinal Afrinal Agung Pujangga Ahmad Ikhsan Ainil Khalisah Aldi Fajri Aldri Frinaldi Aldri Frinaldi Corp Ali Amran Ali Amran Alifa Alifa Andree Octova Ansosry Ansosry Aprizon Putra Arif Maulana Hadi Audia Multriwahyuni Bambang Heriyadi Bram Subhan Maulana Catri, Indra Dasman Lanin Dedi Yulhendra Delvina, Mery Dita Aprilia Istiqamah Eri Barlian Fadel Muhammad Fadhilla Oktari Fariq Dwi Satria Diansa Fathonie Yurnia H Febrian, Dimas Tidar Fellya Septia Fauzi Femi Audya Syifa Fitrya Monica Genius Umar Gus Permata Sari, Indri Hafizurahman Dwi Saputra Harmedi Yulian Saputra Hedsing Cressendo Heldi Heldi Heldi, Heldi Herfien Heri Prabowo Ika Desmawita Ilham Muhammad Agung ilham siddiq Ilhami Putra Indang Dewata Intan Juita Intan Maharani Besri Iskandar Iskandar iswandi U Iswandi U Jeffrey Leonardi Nurkamal Jefri Julianda Putra Jevindo Ornandi Gemvita Khairunnas Khairunnas khazana tulistra M Asy Ruseffandi Mai Ridho Purnomo Putra Marisa Meliana Fitri Monalisa Monalisa Muhamad Sholichin Muhammad Abbil Raihan Muhammad Hazwafi Ardeva Muhammad Luthfi Muhammad Ridho Nadia Anggraini Putri Naya Makaristi Andrea Nopi Kohirozi Nur Efendi Nur Efendi Nurhasan Syah OCI SHANIA PUTRI olivia julianti Rahmad Fikri Raimon Kopa Ravilqi Medri Rayhan Viedyatha Rembrandt Rizki Amelia Sasqia Putri Roro Rasi Putra Rugbia Natasya Rusli HAR Sadilla, Fitri Saldy, Tri Gamela Skunda Diliarosa Skunda Diliarosta Sri Eka Putri Tamrin Kasim trihadma trihadma Triyanchy Afaz Umar, Iswandi Wahyu Prasetyo Agus Susanto Yasmi Antara Yoszi Mingsi Anaperta Yugo Agustino Yuli Asri