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All Journal Journals Mining Engineering : Bina Tambang Penelitian Pendidikan SEMIRATA 2015 INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Jurnal Teknologi Informasi dan Pendidikan MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat SEMESTA
Adree Octova
Universitas Negeri Padang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Transportation Other

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EKSPLORASI PASIR BESI KAWASAN PASIA PANEH NAGARI TIKU SELATAN KECAMATAN TANJUNG MUTIARA SEBAGAI BAHAN BAKU INDUSTRI DI SUMATERA BARAT Yola Andani; Adree Octova
Bina Tambang Vol 5, No 3 (2020): JURNAL BINA TAMBANG
Publisher : Jurusan Teknik Pertambangan FT UNP

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Abstract. Iron sand is generally a beach of iron sand which is widely spread, including along the west coast of Sumatra, the southern coast of Java and Bali, the beaches of Sulawesi, East Nusa Tenggara, Maluku and the north coast of Papua. Iron sand contains magnetic minerals which are materials for building tools in modern life. The great potential in South Nagari Tiku must also be followed by a market that is able to absorb the product. To find out the market potential, it is necessary to analyze the quality of iron sand in both regions. So it can be determined whether the potential in the area can have economic value or not. Nagari Tiku Selatan is located in Tanjung Mutiara District, Agam Regency, West Sumatra Province. Area of Nagari Tiku Selatan: 31.42 KM2 or 15.27% of the total area of Tanjung Mutiara District. Nagari Tiku Selatan is the capital of the sub-district, located 20 KM from the district capital and 92 KM from the provincial capital. This study aims to determine the amount of resources (quantity) and quality of iron sand in the area, using a combination of direct exploration and indirect exploration. Based on the results of the study it was found that the resource of iron sand from the area obtained from handbor lithology was 199,680 tons while from geolistrik measurements the volume was 7,987,200 tons. The total area containing iron sand in the survey area is 249,600 m2 and the total survey area is 2.3 km2. With the specific gravity obtained from physical tests of 3.2. While the quality of iron sand in the area contains between 10-20% Fe2O3, while TiO2 content between 0.6-1.7% is obtained from the analysis of samples tested in the laboratory using the XRF method.Keywords: Iron Sand, Handbor, Geolistrik, Exploration, Resources
Optimalisasi Produksi Batubara dengan Meminimalisir Coal Loose pada Area Pit Penambangan di PT. Artamulia Tatapratama Cici Wulandari; Adree Octova
Bina Tambang Vol 3, No 4 (2018): JURNAL BINA TAMBANG
Publisher : Jurusan Teknik Pertambangan FT UNP

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Abstract. Coal Mining Activities at PT. Arta Mulia Tata Pratama is implementing an open pit system. Coal getting activity is one of the mining activities at PT. ATP. Before doing the activities, coal getting coal volume must be known first. It is for knowing how much the actual volume of coal is measured on the floor and roof on material that will be mined. The actual volume is 186.528.0 tons. while the planned plant of the company is 189.525.0 tons. This indicates that no fulfillment  2,997 tons of coal production targets in the month of January 2018.In coal extraction activities can be happend loose (lost / wasted) of coal material. cleaning on the coal floor, coal damage, and slope mismatch. These factors must be assessed to see the contributions of the waste of coal material and analyzed problems. It is aimed to get accurate data and increase the recovery. This method uses the fishbone method that aims to analyze the problems in the causal factors of coal loose. it is found that the loose contribution of coal loose on the clean floor coal is 890,786tons, loose contribution to coal damage is 89.86 tons, and coal loose contribution to slope is 1.824,615tons.Keywords: coal loose, cleaning floor, coal damage , slopes, fishbone
EVALUASI WAKTU KERJA EFEKTIF ALAT GALI MUAT EXCAVATOR HITACHI ZX-350 H DAN KOMATSU PC 200 DALAM RANGKA MENCAPAI TARGET 80.000 TON PADA PENAMBANGAN BATU ANDESIT DI PT. KOTO ALAM SEJAHTERA KABUPATEN 50 KOTA, PROVINSI SUMATERA BARAT Rahmahtul Fadlillah; Adree Octova
Bina Tambang Vol 6, No 1 (2021): Journals Mining Engineering: Jurnal Bina Tambang
Publisher : Jurusan Teknik Pertambangan FT UNP

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Abstract. In andesite mining, PT. Koto Alam Sejahtera uses a series of work, namely using a digging and loading equipment to move material from the loading point to the dump hopper. Based on the results of field observations, the authors found that the actual data obtained were not in accordance with the target set by the company that the production target was not achieved due to several factors, including due to lost time and delay of the digging equipment, planned and not achieved production targets. As it should be, productive work time is not optimal. There are still frequent inconsistencies in work between the digging and loading equipment, where the digging tool often waits. This is due to the low actualization of working time against the productive time of the loading and transportation means, which causes a decrease in the efficiency of the work of the tools caused by various kinds of obstacles in the field that can actually be avoided.Keywords: excavator, Production, Effective Working Hours, Evaluation
Kajian Kestabilan Lereng RKAP 2018 Lokasi Penambangan Muara Tiga Besar Utara PT. Bukit Asam Tbk Tanjung Enim Sumatera Selatan Muhammad Irawan; Bambang Heriyadi; Adree Octova
Bina Tambang Vol 3, No 4 (2018): JURNAL BINA TAMBANG
Publisher : Jurusan Teknik Pertambangan FT UNP

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Abstract. This research was carried out at MTBU pit mining PT. Bukit Asam Tbk. With the occurrence of landslides on the cross section of Y-Y 'low wall elevation +74 to +62 in the pit area of MTBU PT. Bukit Asam Tbk, it is necessary to do geotechnical studies so that the mining plan can be supported with accurate data, especially in terms of slope stability. To get the optimum geometry recommendations, as well as safety factors (FK) that are in accordance with the plan, we get the initial data Silty Claystone: Content weight (γ) = 22,19 kN / m3, cohesion (c ') = 28,14 kN / m2 and inner sliding angle (ϕ ') = 33,30 °. Silty Sandstone: content weight (γ) = 20.36 kN / m3, cohesion (c ') = 26,38 kN / m2 and inner sliding angle (ϕ') = 25,50 °. Sandy Silt: Contents weight (γ) = 19.67 kN / m3, cohesion (c ') = 32,16 kN / m2 and inner sliding angle (ϕ') = 39,11 °. Recommendation slope geometry: 1. Morgenstren-Price method based on the design results using the Geostudio Slope / W 2007 program, for each section both single slope and overall slope safety factor ≥ 1,25 which means that it is stable or safe. 2. The Hoek and Bray method, 1981 carried out an analysis of the back slope of the single slope high wall elevation +74 to +62 when a landslide occurred using material input properties. After analyzing the slope stability with the analysis parameters behind Hoek & Bray (FK = 0,99), the value (FK = 0.919) is obtained. In saturated conditions, handling is needed to make the slope more gentle where the slope angle is 23,77o with the same height 12 m, so that the value (FK = 1,288) is obtained.Keywords: Slope Stability, Back Analysis, Safety Factor, Slope Geometri, Input PropertiesAbstract.This research was carried out at MTBU pit mining PT. Bukit Asam Tbk. With the occurrence of landslides on the cross section of Y-Y 'low wall elevation +74 to +62 in the pit area of MTBU PT. Bukit Asam Tbk, it is necessary to do geotechnical studies so that the mining plan can be supported with accurate data, especially in terms of slope stability. To get the optimum geometry recommendations, as well as safety factors (FK) that are in accordance with the plan, we get the initial data Silty Claystone: Content weight (γ) = 22,19 kN / m3, cohesion (c ') = 28,14 kN / m2 and inner sliding angle (ϕ ') = 33,30 °. Silty Sandstone: content weight (γ) = 20.36 kN / m3, cohesion (c ') = 26,38 kN / m2 and inner sliding angle (ϕ') = 25,50 °. Sandy Silt: Contents weight (γ) = 19.67 kN / m3, cohesion (c ') = 32,16 kN / m2 and inner sliding angle (ϕ') = 39,11 °. Recommendation slope geometry: 1. Morgenstren-Price method based on the design results using the Geostudio Slope / W 2007 program, for each section both single slope and overall slope safety factor ≥ 1,25 which means that it is stable or safe. 2. The Hoek and Bray method, 1981 carried out an analysis of the back slope of the single slope high wall elevation +74 to +62 when a landslide occurred using material input properties. After analyzing the slope stability with the analysis parameters behind Hoek & Bray (FK = 0,99), the value (FK = 0.919) is obtained. In saturated conditions, handling is needed to make the slope more gentle where the slope angle is 23,77o with the same height 12 m, so that the value (FK = 1,288) is obtained.Keywords:  Slope Stability, Back Analysis, Safety Factor, Slope Geometri, Input Properties
Analisis Produksi dan Biaya Pengupasan Overburden Menggunakan Metode Simpleks di PT. Allied Indo Coal Jaya, Parambahan, Sawahlunto, Sumatera Barat Resty Hardi; Adree Octova
Bina Tambang Vol 5, No 4 (2020): JURNAL BINA TAMBANG
Publisher : Jurusan Teknik Pertambangan FT UNP

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Abstract. PT. Allied Indo Coal Jaya is one of the companies engaged in the coal mining business in the city of Sawahlunto with the status of the Mining Entrepreneurs Cooperation Agreement (PKP2B) in an area of 327.4 hectares. PT. Allied Indo Coal Jaya (PT. AICJ) has a constant production target every month with a target of 294,117.65 BCM / month to produce overburden. However, the realization of overburden excavation production in December did not reach the target of 175,708.73 BCM / month. In 1 fleet there is a loading device serving 3 to 5 unit so that there is a queue conveyance. This shows that the mismatch of loading and hauling equipment is not suitable so that the production and overburden stripping production costs are not optimal. Therefore it is necessary to plan the transportation needs and optimal costs for optimizing overburden production. To solve this, a more complex method is needed, using the Simplex method. Based on the Simplex Method, there are 10 units of dumptruck planning that were previously 13 units. then based on the application of the Linear Programming Method Simplex obtained optimal production obtained for overburden stripping of 277.37 BCM / hour with a production cost of 5.41 USD /BCM.
RANCANGAN DESIGN TAMBANG TERBUKA JANGKA MENENGAH PADA TAMBANG BATUBARA DI WILAYAH TOWNSITE PT.BUKIT ASAM (PERSERO) TBK, TANJUNG ENIM, SUMATERA SELATAN Diah Wulandari; Dedi Yulhendra; Adree Octova
Bina Tambang Vol 2, No 1 (2015): Jurnal Bina Tambang
Publisher : Jurusan Teknik Pertambangan FT UNP

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PT Bukit Asam (Persero), Tbk is one of  STATE-OWNED company engaged in the coal. Referring to Government Regulation No. 70 of 2009 about energy conservation management has to be planned with and integrated in order to preserve domestic energy resources as well as increasing efficiency in its use. In order to support the energy conservation policy, PT Bukit Asam (Persero) Tbk do optimization of final mining Pit. In an attempt to optimization of Mine Air Laya mine area expansion required water laya to optimize an existing backup.Therefore, PT Bukit Asam (Persero), Tbk is planning an expansion of the mine in the Townsite and plan long-term long-term planning will be made next his secondary.This research was conducted to find out the design of the mine, the mining sequence, scheduling production, mining costs and tool needs. Final does is analyze the quarerly  planning of open mines and mine feasibility in terms of economical.Topographic data, the contour of the spreading of coal and mine design that had been planned for 5 years with a target of mining production 4.000.000 ton/year. Transport equipment and tools fit in the first year until the fifth year of the appropriate stable using 4 eksavator Pc 400 and nine truck Scania P30 with a capacity of 30 tons. While,  mine made access roads with a width of 15 meters based on the widest transport tool. There is a disposal area that can accommodate 124.918.226 bcm of overburden and interburden. Based on the use of mining equipment, equipment investment of $ 26.870.826 and net income of the proceeds of $ 187.616.010. It can be concluded that the medium-term in the area of mining Townsite deserves to be mined and meet production targets set. 
Analisis Statistik Untuk Mendapatkan Waktu Optimal Dari Losstime Dalam Memenuhi Produksi Penambangan Batubara Di Area Pit Timur PT. Artamulia Tatapratama Rukia Pinda Sari; Murad Murad; Adree Octova
Bina Tambang Vol 3, No 3 (2018): JURNAL BINA TAMBANG
Publisher : Jurusan Teknik Pertambangan FT UNP

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Based on data of coal production at PT. Artamulia Tatapratama (ATP) from January to May 2017. The coal production target was not reached in February-May 2017, while coal production in January 2017 was achieved. This is caused by several constraints in coal production activities, because of these constraints cause effective working hours at PT. ATP is reduced. From this problem, it is necessary to analyze the optimal time from losstime to reach the established coal production plan. To get the optimal time in achieving the production plan is done by multiple linear regression analysis, the results obtained from this analysis is the maximum limit of the time losstime, and to determine the optimal time of losstime is using simulation of linear equation regression. The optimal timing of the digging equipment in achieving the daily production of coal based on the results of the simulation of statistical analysis when idle time of 3 units of unloading equipment operates for 7.67 hours, the delay time allowed from the equipment is 12.99 hours, while if the delay time is 14.78 hours, the idle time allowed only 6.03. After knowing the problem causing decrease of working time of digging and unloading equipment (losstime), it is necessary to improve corrective action to be applied in the field.Keywords:  Production, Losstime, Statistical Analysis, Optimal Time, Coal Mining
ANALISIS OPTIMALISASI LOSS TIME ALAT GALI MUAT UNTUK MENCAPAI TARGET PRODUKSI OVERBURDEN DI PIT TIMUR PT ALLIED INDO COAL JAYA KOTA SAWAHLUNTO, SUMATERA BARAT. Arif Nandi Rivai; Adree Octova
Bina Tambang Vol 6, No 4 (2021): Journals Mining Engineering: Jurnal Bina Tambang
Publisher : Jurusan Teknik Pertambangan FT UNP

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Overburden stripping is an activity that affects mining activities, the more optimal the overburden stripping activity, the coal mining activities will be in accordance with the targets set by the company. PT Allied Indo Coal Jaya in the East Pit has set an overburden production target in November 2020 of 110,000 BCM/month for 2 mining fleets. However, based on overburden production data, the production achieved was 86,126.20 bcm, only 78.30% of the target achieved. The available working time for each mining fleet is 268 hours, but the time for the Unit 018 fleet is 216.74 hours and the 021 fleet is 220.08 hours. There is losstime which is a factor in not achieving the overburden production target. The losstime problem consists of Idle Time and Delay Time. Based on the problem, action is taken on losstime for digging equipment with optimization of overburden production time. Analysis of the data used is multiple linear regression analysis using the least squared method. To get the optimal time simulation of loss time in meeting production targets in the East Pit of PT Allied Indo Coal Jaya. The data used are loss time data (idle time and delay time) and aqua production data. Optimal losstime that can be applied to the fleet Unit 018 with an idle time of 0.41 hours/day and a delay time of 0.05 hours/day and the fleet Unit 021 with an idle time of 0.57 hours/day and a delay time of 0.08 hours/day. Where the overburden production achieved from these two fleets is 114,020.57 bcm/month. Keywords : Production, Losstime, least squared
PERENCANAAN PENAMBANGAN JANGKA MENENGAH (QUARTERLY PLAN) NIKEL LATERIT PADA PIT A, B DAN C PT. GANE PERMAI SENTOSA HARITA NICKEL PULAU OBI, MALUKU UTARA Annisa Intan Y.R; Dedi Yulhendra; Adree Octova
Bina Tambang Vol 1, No 2 (2014): Jurnal Bina Tambang
Publisher : Jurusan Teknik Pertambangan FT UNP

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PT. Gane Permai Sentosa (Nickel Harita Group) is one of the private mining companies that are conducting nickel laterite mining in Obi island, South Halmahera, North Maluku Province. PT. Gane Permai Sentosa is using open pit mine as its mining method. Of the block models that has been estimated by krigging method, there are 1,215,946 tons of mineable reserve ore which is the result of blending between high grade ore with 2.02% of Ni grade which has the portion 67% in total of mineable reserve and medium-grade ore with 1,60% Ni grade which has 33% in total of mineable reserve. That will be blanded and will reach 1.90% grade of Ni and the average stripping ratio is 1.57 and can be mined for 6 month. With the production target of ore is 200,000 tonnes in a month as like as buyer spesification that minimum Ni grade is 1.85% We can conclude that for the medium term mining in Pit A, B and C will be able to be mined and reach production targets set.  Keywords: reserve calculation, production schedulling, ore analysis
Optimalisasi Produktivitas Batu Andesit Menggunakan Metode Quality Control Circle Untuk Memenuhi Target Produksi Batu Andesit 18.000 ton/bulan Pada PT Pebana Adi Sarana Nagari Manggilang Kec. Pangkalan Koto Baru Kab. Lima Puluh Kota, Provinsi Sumatera Barat Rani anggraini; Adree Octova
Bina Tambang Vol 5, No 5 (2020): JURNAL BINA TAMBANG
Publisher : Jurusan Teknik Pertambangan FT UNP

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Abstract. PT Pebana Adi  Sarana is a company engaged in andesite mining located in Lima Puluh Kota Regency. Andesite mining activities are carried out using the quarry mining method.PT Pebana Adi Sarana has a constant mounly production target of 18.000 tons/month. However, the realization of production for the august-september 2020 period was not achieved, namely ar 15.215,33 tons/month. Where the production achieved is only 84,5% og the target set by the company.This study uses the QCC method to increase production based on a paretto analisys of the main problem and the dominant cause of the not optimal production of minning equipment is 47% while on the conveyance 42% of the avaible working time. By making improvements to the working tim wasted with the QCC menthod the productivity increased to 44% for loading equipment and tranportation equipment bu 38% from the actual productivity. After encreasing the time wasted to be 93,79 hours/month for digging tolls and 81,09 hours/mont foe comveyances.Keywords : Excavator, DT Scannia, Productivity, Quality Control Circle, Paretto, Fishbone
Co-Authors Abna Hidayati Admizal Nazki Amali Putra Andrian Eka Putra Annisa Intan Y.R Ardhi Jafrian Arif Nandi Rivai Bambang Heriyadi Byma Bryanco Calvin Maharza Chita Annisa Putri Cici Wulandari Dedi Yulhendra Della Aulia Aidil Diah Wulandari Dian Nur Ikhsan Doli Ali Fitri Ersila Maharani Fandi Aulia Syofyan Fathonie Yurnia H Feraldo Sandrio Halimah Halimah Helio Gina Febriandika Ikhwan Idham Ikhwan Pratama Ira Kusuma Dewi, Ira Kusuma Jordi Andika Putra Salim Lady Ayu Sapitri M Sahrudin M. Ilham Khalid Milia Putri Muhammad Irawan Mulya Gusman Murad Murad Putra, Amali Rafky Maulana Rahmad Fajri Rahmahtul Fadlillah Rahmi, Ulfia Raka Tubagus Indra Rani anggraini Resi Hutriayu Resty Hardi Reza Taufiqurrahman Ria Novi Mayang Sari Ridho Yovanda Rido Muhammad Afif Riko Maiyudi Rio Anshari Roges Tomara Mahesa Roro Rasi Putra Rudy Anarta Rukia Pinda Sari Sari, Ceni Febi Kurnia Sumarya Sumarya Yofita Sandra, S.Pd., M.Pd., Zico Farlin, Dr. Budiwirman, M.Pd., Yola Andani Yoszi Mingsi Anaperta