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Journals Mining Engineering : Bina Tambang

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Published by Universitas Negeri Padang

ISSN : - EISSN : 23023333 DOI : -

Core Subject : Science,

Earth & Planetary Sciences

Atas dukungan dari jurusan Teknik Pertambangan dengan Penanggung Jawab Dekan Fakultas Teknik UNP (Drs. Ganefri,MPd, P.hd) bekerjasama dengan Ketua Jurusan Teknik Pertambangan (Drs.Bambang Heriyadi,MT) dan seluruh Dosen Jurusan Teknik Pertambangan Fakultas Teknik Universitas Negeri Padang. Jurnal ini terbentuk dan didukung penuh untuk sarana kretifitas Dosen dan Mahasiswa Teknik Pertambangan.

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Articles 609 Documents

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Analisis Kestabilan Lereng Front IV Pit Limit Di Area Penambangan Batu Kapur PT. Semen Padang Sumatera Barat Fuzi Atiiqah; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Semen Padang is the oldest cement factory in Indonesia which was established on March 18, 1910 under the name NV Nederlandsch Indische Portland Cement Maatschappij (NV NIPCM), which is the first cement factory in Indonesia. The activity of mining in Pit Limit Front IV development area in September 2019 occurred landslides. The landslide that occur is Toppling Failure. The actual slope is 750, the height is 20 meters, and the width is 8 meters. Based on bishop method the analysis results obtained the value of the slope safety factor (FK) in dry conditions is 1.4 with an angle of 70°, a height of 30.752 meters and a value of the Probability of Failure (PF) is 0%. the results of the analysis obtained value of the slope safety factor (FK) in saturated conditions is 1.0 with an angle of 70°, a height of 30.752 meters and a probability of failure value of 45.7%. The results of the slope design recommendations obtained the value of the slope safety factor (FK) in dry conditions is 1.9 with an angle of 66°, height of 30,752 meters and value of the probability of failure (PF) is 0%. The value of slope Safety factor (FK) in saturated condition is 1.4 with an angle 66°, height of 30.752 meters and value of the probability of failure (PF) is 0%.Keywords: Slope, Safety of Factor, Probability of Failure, Bishop Method, Topling Failure

Optimalisasi Peralatan Tambang dengan Metoda Overall Equipment Effectiveness (OEE) untuk Memenuhi Target Produksi Pengupasan Overbuden Bulan Agustus 2019 di Pit 1 Utara Bangko Barat PT. Satria Bahana Sarana Tanjung Enim Sumatera Selatan Satria Rija1; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Satria Bahana Sarana is a contracting company engaged in coal mining services located in Bangko Barat, Muara Enim Regency, South Sumatra Province. In August 2019, the overburden stripping production target was 1,095,000 bcm in which the realization of field production was 645,755 bcm which reached 59%. In the production calculation using the overall equipment effectiveness (OEE) method, the production value of 643,701.33 bcm is obtained with the effectiveness of each fleet of 34%, 44%, and 42% which have not reached the world OEE standard of 85%. Some of the causes of unattainable production targets are due to the many loss time in mechanical equipment that includes several factors such as system factors, human environment, and equipment. After making improvements to the loss time, a production calculation using the overall equipment effectiveness (OEE) method was found to increase production value to 1.097.696 bcm which met the overburden stripping production target in North Pit 1 in August of 1,095,000 bcm. And the effectiveness of mechanical equipment increased to 53%, 57%, and 44%.Keywords: Production, Loss Time, Overall Equipment Effectiveness, Excavator, Analysis Simple Linear Regression

Analisis Kestabilan Lereng Pada Penambangan Batu Andesit PT. Ansar Terang Crushindo 1, Kecamatan Pangkalan Koto Baru, Sumatera Barat Novita Tria Putri; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. The existence of weak fields that affect the stability of the slopes in the mining of PT. Ansar Terang Crushindo 1. The stability of the mine slope is the most important factor that must be considered in the continuation of mining activities. Initial slope geometry has a single slope with a height of 25m with a slope of 820. The slope geometry planning will be used by the Morgenstern Price methods. As a result of research, the following conclusions are drawn. The type of potential that occurred at the study site was a wedge failure with a potential of 10,93%. The analysis characterization of rock mass based on the analysis of RQD, RMR rock types on location classified in the class fair rock. Second, the results of the analysis of single slope of actual earned value FK = 1,911 (natural conditions) and FK= 1,001 (saturated condition). Third, to obtain a safe FK that is 1,3, the geometry of the slope is modified the geometry of the slope is modified, namely with a slope height of 25 m and slope 78° in saturated condition then FK 1,477 slope in safe condition.Keywords : slope stability analysis, RQD, RMR, morgenstern price method, wedge failure

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

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

Kajian Teknis Geometri Jalan Angkut Batubara Menuju Pelabuhan Khusus Milik PT Baturona Adimulya Untuk Mencapai Target Produksi Febrian Syukra; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Coal transportation is important in achieving coal production targets. The condition of road geometry is one of the factors that influence transportation activities. The purpose of this research is to conduct a technical study of the geometry of the coal haul road from the Sumatra Jambi-Palembang crossroads to the special port owned by PT Baturona Adimulya to achieve the coal production target. The study was conducted by direct observation to the field to obtain primary data and secondary data needed. The results of the data analysis show that the geometry of the mining road still needs to be improved in certain segments. The actual condition of the width of the B-C (bend) and E-F (straight) segments of 10.6 m and 8.5 meters wide is not yet ideal, so it is necessary to increase the width of the road respectively in the width of 0.7 meters and 0.5 meters. The actual slope of the road in all segments is ideal. The actual superelevation of the F-G segment valued at 0.29 m is not ideal yet, so the elevation outside the bend needs to be added at 0.15 meters. The actual cross slope, segments A-B and E-F, respectively 10 cm and 15 cm, are not yet ideal, so it is necessary to add height to the middle of each segment as high as 8 cm and 3 cm. Production of conveyance before repairing was 56.2948.98 tons and after repairing the road geometry was 60.144.92 tons.Keywords: Transportation Geometry, Improvement Plan, Production Target, Cycle Time, Technical Study

PKM Sosialisasi Mitigasi dan Kesiapsiagaan Bencana Alam di SMA N 2 Kota Solok Tri Gamela Saldy; Riko Maiyudi; Yoszi Mingsi Anaperta; Harizona Aulia Rahman; Rizto Salia Zakri
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Natural disasters are disasters caused by the event or series of events due to nature. Natural disasters in recent years are very common and need preparedness, awareness and vigilance in the face of disaster, especially in the city of Solok, starting from earthquakes, landslides and so forth.Yet there is no socialization of natural disasters and disaster preparedness in SMA N 2 kota Solok so that students do not have the knowledge to mitigation and preparedness of natural disasters make the executor to conduct socialization mitigation and natural disaster preparedness to them.So that the participants in this case students understand about how to mitigate and preparedness natural disasters. The socialization is given in the form of lectures, discussions, and field practices.After the socialization was obtained increased knowledge about the mitigation of natural disasters by the students SMAN 2 Kota Solok. At pre-training (prior to training) only 71% of students who understand about mitigation and preparedness and at post-training increased to 100% of students understand the mitigation of natural disasters.Keywords: Disaster management Natural disasters, , mitigation and preparedness

Hubungan Kuat Tekan Uniaksial dan Kuat Tarik Tidak Langsung Pada Batuan Sedimen Dengan Nilai Kuat Tekan Rendah Rizto Salia Zakri; Ilep Prengki; Tri Gamela Saldy
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Soil and rock material has less strength to tension, compared to pressure and shear. Tensile strength has an important role in the stability of mining activities such as drilling, blasting and making slopes and mine tunnels. Determination of the tensile strength value is currently done by testing the indirect tensile strength (Brazillian Test). In the field commonly, to prediction tension strength value used rule of thumb which is the result of analysis from previous tests, but for this case, the prediction results using rule of thumb are inaccurate. The sample used in this research is sedimentary rock taken from several coal mining locations in the Jambi province. This sample is then tested using a compressive machine to get the uniaxial compressive strength and tensile strength values. Descriptive statistical methods and linear regression methods are used in this study to obtain an accurate prediction of tensile strength based on compressive strength data. According to the descriptive statistical method the tensile strength value is 0.41 times the compressive strength value, while if it is linear regression, the result of the tensile strength value is equal to 0.2079 σc + 0.1917. Both of these methods are able to predict the value of the tensile strength better than the existing rule of thumb, but more advanced research with more samples is needed to get the better equation.Keywords: Sedimentary Rock, Brazilian Test, Tensile Strength, Compressive Strength, Prediction

Analisis Perbandingan Biaya Alat Gali Muat Excavator Komatsu PC 1250 dengan Excavator Hitachi ZX 1200 Pada Pengupasan Overbarden Di PT. Artamulia Tatapratama Ichsan Achmad Setiawan; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Artamulia Tatapratama utilizes Komatsu PC 1250 and Hitachi ZX 1200 excavators for the process of stripping and transporting overburden which has a working combination where each excavator serves six units of Komatsu HD 465 dump trucks. This research aimed at: 1) obtaining the productivity value of the excavator and dump truck, 2) obtaining owning and operational costs of Komatsu PC 1250 and Hitachi ZX 1200 excavators, and 3) determining more economical excavators. The process of data analysis and processing in this study included: 1) calculation of ownership and operational costs, 2) calculation of productivity of the dump trucks, 3) calculation of production costs, and 4) comparative analysis of production costs. Based on the results obtained, the cost of overburden stripping using Hitachi ZX 1200 excavator was more economical than Komatsu PC 1250 excavator. It is recommended to PT. Artamulia Tatapratama to use the Hitachi ZX 1200 excavator in the overburden stripping process. In addition, in terms of the procurement of further equipment, the company is advised to choose the Hitachi ZX 1200 excavator since it is more economical.Keywords: Owning Cost, Operation Cost, Productivity, Production Costs,Excavator

Menghitung Debit Air Limpasan di Pit Bukit Everest PT. Antam Tbk UBPN Sulawesi Tenggara Heri Prabowo; Aulia Mutiara C
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Antam Tbk. Southeast Sulawesi UBPN is a state-owned enterprise engaged in the mining and nickel ore processing sector which has an IUP area located in Pomalaa District, Kolaka Regency, Southeast Sulawesi Province. The mining front area consists of 4 regions, namely the northern mine, the central mine, the southern mine, and Maniang Island with a mining area of 6324 hectares. The mining method applied by PT. Antam Tbk. Southeast Sulawesi UBPN is openpit and open cast.Based on guidance from supervisors, Everest Pit is the biggest Pit compared to Pit Wrangler and Pit Rubicon. Sampling is carried out after high rainfall. At each Mining Front, runoff water is very influential on mining activities. Which if not done earlier prevention, will result in all mining activities stopped.After an analysis of the Bukit Everest Pit discharge, the discharge value obtained in each of the catchment areas, namely DTH 1 with value of 11.32, DTH 2 was 4.31 m³ / sec and DTH 3 was 1.50 m³ / sec.Key Word : Catchmen area, open pit, open cast, pit

Optimalisasi Produktivitas Overburden Menggunakan Metode Quality Control Circle (QCC) Untuk Evaluasi Ketidaktercapaian Target Produksi Bulan Desember Tahun 2019 Pada PT. Triaryani Kabupaten Musi Rawas Utara, Sumatera Selatan Fauzan Sumarta; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. One step to control the rate of productivity and accuracy in achieving monthly plans is to observe or optimize the performance of the loading and unloading equipment. This is what PT Triaryani did in evaluating the performance of the production department in excavating overburden material. Data for December 2019 shows that the planned production target of 45,000 tons of overburden was only 41,740 tons. A production management study was carried out by applying the Quality Control Cycle (QCC) method. This method makes it possible to conduct an evaluation on performance of heavy equipment and the obstacles experienced during production process. The study begins by recalculating the initial conditions by considering its mining equipment used, namely Excavator CAT 330 and DT Hino FM 260 JD. The actual productivity of 1 unit of Exca CAT 330 reached 74,113 tons with 80.66% utility equipment and DT Hino FM 260 JD reached 41,607 tons with 4 DT units with 79.32% utility equipment, machine match factor reached 0.48, After evaluating Fishbone Diagram, it was found 4 main problems namely external factors, environment, equipment and man power that affect work time. Performance improvement recommendations based on Paretto Diagrams, are considered to optimize work time. The results show that productivity of 1 unit of exca CAT 330 increased to 15% with utility reaching 86.89% ie 86,000 tons and 4 units of DT increasing 40% with utility equipment reaching 86.52% ie 63,741 tons, machine match factor reached 0.61. These results indicate that performance of heavy equipments could be improved to achieve the monthly overburden material production target. Keywords : Overburden, Productivity, Exca CAT 330, DT Hino, and QCC Methode

Page 31 of 61 | Total Record : 609

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