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Journals Mining Engineering : Bina Tambang
ISSN : -     EISSN : 23023333     DOI : -
Core Subject : Science,
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
OPTIMASI ALAT GALI MUAT DAN ALAT ANGKUT TERHADAP PRODUKSI BATUBARA DENGAN METODE KAPASITAS PRODUKSI DAN METODE TEORI ANTRIAN PADA PIT TAMAN PERIODE OKTOBER 2016 UNIT PERTAMBANGAN TANJUNG ENIM PT. BUKIT ASAM (PERSERO) Tbk. Alifa Alifa; Mulya Gusman; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 3, No 2 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.305 KB) | DOI: 10.24036/bt.v3i2.10106

Abstract

Equipment is a very important factor in ensuring the sustainability of mining production. Theamount of excess fleet will result in inflated operating expenses, while the number of fleetsthat little will reduce the number of mine production. Ideal conditions in the process ofloading and transportation of materials is very difficult to achieve. However, it can beattempted through efficiency tehadap number of major mining dump truck. One simulationmethod that can be used to optimize the production of electric load - dump truck main methodis to use the production capacity and queuing theory. Simulations conducted in order toobtain optimum number of trucks with truck queuing time the minimum and avoid waiting forthe appliance load dump truck.Unloading tool used was Excavator Backhoe Komatsu PC 400 consist of 2 units. Dump truckwhich is a truck used Hino 500 FM 320 TI totaling 12 units. Based on simulation results withsimulation approach production capacity dump truck takes 11 units while the dump truckqueues based on the theory that it takes 11 units. In actual dump truck used is 12 units.Keywords : excavator, dump truck, match factor, production optimize, queuing theory
Kajian Pengurangan Getaran Tanah (Ground vibration) Pada Peledakan Overburden Tambang Batubara Di PT. Artamulia TataPratama Site Tanjung Belit Provinsi Jambi Ahmad Ridho Permana; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1035.593 KB) | DOI: 10.24036/bt.v4i1.103535

Abstract

Abstrak. PT. Artamulia Tatapratama generally consists of two main materials namely claystone and sandstone with the value of the test results of the UCS test averaging above 20 MPa, which belongs to the hard rock category. Therefore, blasting activities were carried out in an effort to provide more effective and efficient overburden constituent materials. Blasting activities carried out in addition to paying attention to the production target must also be taken into account the impact of the blasting it self, especially in terms of ground vibration which can cause negative effects on the surrounding area, if it exceeds the established standards. Recording data of ground vibration measurements on the Vibracord DX series devices carried out by PT. Artamulia Tatapratama showed that the maximum value of soil vibration level produced reached            2.98 mm / second, while the threshold threshold value agreed upon by the local government together with the surrounding community, and PT. Artamulia Tatapratama which is equal to      1.4 mm / second. Whereas according to the Indonesian National Standard (SNI) the maximum value of vibration blasting is 3 mm / sec (based on the condition of the building around the blasting area) Keywords: Seismic wive, Blasting, Peak Particle Velocity, scale distance, ground vibration
Kajian Teknis dan Ekonomis Perancangan Design Kemajuan Penambangan Quarry Batukapur pada Bulan April–Agustus 2017 di Front III B–IV B Bukit Karang Putih PT. Semen Padang Fikriansyah Ersyad; Dedi Yulhendra; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1570.181 KB) | DOI: 10.24036/bt.v3i3.101411

Abstract

PT. Semen Padang plans to expand mining area, especially in the Front III B-IV B. The limestone production target was planned is 550,000 tons / month. Long-term production target planning for all mining areas in 2017 for limestone is 10,128,000 tons, or increase 12.56 % and silicastone is 1,100,000 tons, or increase 10% from 2016. Production realization achieved in 2016 was only achieved 78.3% for limestone and 71.7% for silicastone. Less optimal achievement of production targets in 2016 due to inappropriate sequence factors, and irregularities in excavation. Planning for limestone mining in Front III B-IV B is based on technical and economical assessmnet in terms of quality and quantity of deposit. In order to maintain the quality of the limestone, it is necessary to know the amount of reserves and the distribution of the quality of limestone in a block model estimated by the geostatistical approach, namely the krigging method. Planning quarry design’s starts from April to August 2017. Combination of loader - hauler that is used to transport limestone is Excavator Komatsu PC 1800-Dumptruck HD 785, while overburden removal use a combination of Excavator Komatsu PC 300-Dumptruck Hino FM260JD. From the design of the quarry in April - August 2017 it was found that in April the overburden stripping was 6,535.71 Bcm and 552,001.89 Tons of limestone, with mining operational costs of $ 160,243. In May the stripping of limestone was reached 569,286.38 Ton, with mining operation cost of $ 162,243. In June, overburden stripping was 5000 Bcm was carried out and 582,636.13 tons of limestone, with mining operating costs reach $ 136,950. In June, overburden stripping was carried out of 29,753 Bcm and 596,955.59 tons of limestone, with mining operating costs of $ 168,989. In August, overburden stripping of 47,000 Bcm was carried out and 579,374.91 Tons of limestone, with mining operating costs of $ 196,683.Keywords:  Production, Mine Planning, Krigging Method, Design Quarry, Operating Cost
PERENCANAAN BIAYA DAN KEBUTUHAN ALAT MUAT DAN ANGKUT PADA LOKASI PENAMBANGAN AREA 242,3Ha BATU KAPUR PT.SEMEN PADANG SUMATERA BARAT Androly Andreas; Sumarya Sumarya; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 1, No 1 (2014): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.382 KB) | DOI: 10.24036/bt.v1i1.3434

Abstract

ABSTRAKPT. Semen Padang (Persero) merupakan salah satu perusahaan pertambangan yang berlokasi di Sumatera Barat. Pada saat ini penambangan dilakukan pada front IV tapi karena kadar silika pada  front  tersebut  sudah  menurun perusahaan  mempunyai rencana  melakukan  penambangan  pada  area  242,3Ha yang belum pernah dilakukan penambangan sebelumnya. Penambangan di kuari bukit   karang putih mengunakan kombinasi antara alat muat (Excavator Hitachi) dan alat angkut (Dump Truck Komatsu).Untuk mencapai target produksi  yang ditetapkan perusahaan maka pada area 242,3Ha penambangan mengunakan kombinasi alat mekanis  yang  berupa Excavator dan Dump Truck dimana Excavator yang ada saat ini sebanyak 2 buah sedangkan Dump Truck yang dibutuhkan  sebanyak 7 buah untuk  shift I yang terdiri dari 4 buah Dump Truck berkapasitas 100 ton dan 3 buah yang berkapasitas  80  ton sedangkan untuk shift II mengunakan 2 buah Excavator dan 6 buah Dump truk yang terdiri dari  3  buah untuk  yang berkapasitas 100 ton dan 3 buah untuk berkapsitas 80 ton.Secara teoritis kemampuan produksi yang dapat dihasilkan alat mekanis jika dilakukan penambangan pada area 242,3Ha dengan kondisi seperti saat ini adalah sebesar 33214,654 ton perhari sedangkan target produksi yang ditargetkan perusahaan adalah sebesar 30.000 ton perhari dengan demikian target produksi yang dihasilkan nanti akan tercapai. Biaya yang dibutuhkan jika dilakukan penambangan pada area area 242,3Ha ini untuk alat muat pada shift I adalah sebesar Rp 2668,377/ton, dan  untuk  alat angkut pada shift I adalah Rp 5841,278/ton sedangkan pada shift II biaya pemuatan sebesar Rp 2668,377/ton dan  untuk  biaya  pengangkutan  Rp 5476,955/ton.Kata Kunci: biaya, alat muat, alat angkut.
Kajian Laju Infiltrasi pada DAS Air Dingin Kota Padang Ditinjau dari Perbedaan Litologi Batuan, Kemiringan Lahan, Jenis Tutupan Lahan, dan Sifat Fisik Tanah Rendra Aulia Pratama; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1097.114 KB) | DOI: 10.24036/bt.v3i4.102250

Abstract

Abstract. The new land clearing for residential area will be cause a reduction in open area as a place for infiltration of rainwater into the soil. The functional shift of the land can increase run off and give rise flooding. It is necessary to do a study about infiltration rate, mapping of infiltration zone, and calculation of water discharge that can be infiltrate by soil has be done at DAS Air Dingin Padang City. This research was carried out on 16 measurement points that spread at middle and downstream area of DAS Air Dingin.  The data obtained is infiltration rate data, lithology description, slope of the land, type of land cover, and physical properties of soil data. Based on the result of data processing used kostiakov method, then the average of infiltration rate at research area is 0.10852 cm/s, this value is include of very low infiltration area (0.1-0.2 cm/s). The mapping of infiltration zone has divide research area into 6 zone that is the low zone infiltration 0.000599482-0.019298148 cm/s and the highest zone infiltration 0.224955543-0.569651067 cm/s. At the other,  water discharge can be infiltrate by soil at research area is very low (65.402,5331 m3/hour/km2) with an area of infiltration is 20,844km2.Keywords:  Infiltration Rate, Kostiakov Method, Lithology, Physical Properties of Soil, Infiltration Zone
Analisis Kajian Teknis dan Ekonomis Biaya Operasional Terhadap Hasil Produksi KIP Timah 14 PT.Timah (Persero),Tbk di Laut Tempilang, Bangka Belitung Derry Trenza Maida; Murad Murad; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 2, No 1 (2015): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.72 KB) | DOI: 10.24036/bt.v2i1.5289

Abstract

PT. Timah (Persero) Tbk. Bangka Marine Unit is a unit of production of PT.Timah (Persero) Tbk. which conduct mining using Dredger and Cutter Suction,one of them using the KIP TIMAH 14 operating in Tempilang Sea.This research is based on the ISO 50001 and Energy PerformanceManagement, namely by looking at the rate of fuel (HSD) consumption towardKIP Timah 14’s production, to attempt efficiency, and to make daily consumptionfunctions of HSD. Attempt efficiency is to examine two issues, the use of rightunderwater machine (Mineral Dressing Installation Activator) and excavationmethod (excavation volume reduction). From observations in the field, during theoperation of KIP Timah 14 found frequent damages in mineral dressinginstallation and excavations are not effective. From the problems above so thatattempted Efficiency by reducing the volume of excavation is not required anddoes not operate the right underwater mechine when digging overburden.After the efforts of efficiency obtained, HSD consumption savings aboutRp.536,721,972.70 in November 2014, Rp.792,734,317.80 in December 2014, andRp.644,841,956.40 in January 2015. The efforts of effeciency feasible to do inorder to suppress the mining operating costs.
Keefektifan Penggunaan Alat Flatjack Dibandingkan Dengan Tegangan Gravitasi Untuk Menghitung Tegangan Batuan Pada Lubang Bukaan Tambang Bawah Tanah CV. Tahiti Coal, Sawahlunto Rahmad Setiawan; Murad Murad
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (612.177 KB) | DOI: 10.24036/bt.v3i4.102290

Abstract

Abstract. Geomechanics testing is very important in mining industry, both open pit and underground mining. Geomechanics testing is aimed to determine the stress and the strength of the rocks. One example of insitu testing and destructive testing is the Flatjack testing method. The Flatjack tool is a tool developed by the FT UNP mining laboratory in September 2017. This tool is a development of the previous tool. The development Flatjack test results have never been tested and their effectiveness is unknown yet. The Flatjack tool needs to be tested by conducting a trial test at locations that are relevant to the function of the tool in order to obtain effectiveness.Based on the results of testing and direct observation in the field, the results of Flatjack tool test on branch 1 (10.5 kg / cm2), branch 2 (12.5 kg / cm2), and branch 3 (14 kg / cm2) were obtained. Based on the results of direct data collection in the field, the results of the calculation of gravitational forces on branch 1 (7.1285 kg / cm2), branch 2 (10.9859 kg / cm2), and branch 3 (14.583 kg / cm2) were obtained. Based on the results it can be concluded that the Flatjack tool needs to be calibrated so that the results obtained from the Flatjack tool test are more effective.Keywords: Hole opening, rock stress, Flatjack tool test, calculation of gravitational force, effectiveness
Pengaruh Keselamatan dan Kesehatan Kerja Terhadap Kinerja Karyawan di PT. Supreme Energy Muara Laboh (SEML) Kab. Solok Selatan Provinsi Sumatera Barat M. Roza; Rijal Abdullah; Yunasril Yunasril
Journals Mining Engineering : Bina Tambang Vol 4, No 3 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1182.231 KB) | DOI: 10.24036/bt.v4i3.105771

Abstract

Abstract. Human resources are an important role for the success of an organization or company. Humans are living assets that need to be nurtured and developed. One of the things that should be a major concern for human resource managers is the occupational safety and health system. PT. Supreme Energy Muara Laboh is one of the geothermal companies that has been established since 11 years ago. This company is located in Muara Laboh, West Sumatra. The main problem that exists in this company is the occurrence of work accidents as many as 50 accidents experienced by employees during 2012-2015. Accidents that occur can disrupt  geothermal operational activities and endanger the safety of workers. Based on the description above, the author is interested in conducting research with the title "The Effect of Occupational Safety and Health on Employee Performance of PT. Supreme Energy Muara Laboh"Based on data processing for work safety program variables, the value of t-count is 3.388 which means that is greater than t-table which is 2.179, with a significance of 0.349 which is more than 0.05. It is mean that Ho1 is rejected , meaning that the work safety program has a significant influence on Employee Performance. Keywords:  Occupational Safety and Health, Employee performance, Work Accident,Occupational Safety Program, Geothermal
STUDI KELAYAKAN EKONOMIS PENAMBANGAN DAN PENGOLAHAN BAHAN GALIAN BASALT MENJADI BATU SPLIT DI AREA BUKIT KARANG PUTIH PT SEMEN PADANG Monalisa Monalisa; Mulya Gusman; Ansosry Ansosry
Journals Mining Engineering : Bina Tambang Vol 3, No 2 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1631.167 KB) | DOI: 10.24036/bt.v3i2.10094

Abstract

PT Semen Padang merupakan salah satu perusahaan produsen semen di Indonesia yang mengelola dan memenuhi kebutuhan bahan baku utamanya sendiri. Selain terdapat bahan galian silicastone dan limestone, PT Semen Padang juga meiliki sumberdaya bahan galian basalt yang belum dimanfaatkan. Bentuk dan penanganan dalam memanfaatkan bahan galian basalt berupa penambangan dan pengolahan yang menghasilkan output berupa batu split. Hal ini dilakukan karena bahan galian basalt tidak dapat dijadikan bahan dalam pembuatan semen kerena memiliki kadar MgO lebih besar dari 5%. Sebelum dilakukannya kegiatan penambangan perlu dikaji terlebih dahulu kelayakan teknis dan ekonomis dari penambangan dan pengolahan bahan galian basalt tersebut.Kegiatan penambangan yang dilakukan berupa pemboran dan peledakan dengan kedalam lubang ledak hasil pemboran 9,2m dan volume yang terbongkar sebanyak 44558,6 ton/bulan. Bahan peledak yang digunakan sebanyak 5127.5 kg Dabex, 66 pcs inhole delay, 65pcs surface delay dan 66 booster. Material hasil peledakan digali dengan 1 unit excavator Komatsu PC300 untuk dimuat ke truk Hino FM260JD sebanyak 2 unit. Untuk kegiatan penunjang penambangan di butuhkan 1 unit Wheel Loader dan Buldozer. Crusher yang digunakan adalah jaw crusher type PE-750x1060 sebagai primary crushing dan cone crusher type PYFB 1321 STD M sebagai secondary crushing. Biaya pengeluaran yang dibutuhkan untuk memproduksi 7.815.383 ton batu split basalt adalah sebesar Rp272.468.571.040,02. Maka biaya produksi per tonnya adalah sebesar Rp34.863,11 per ton (di luar pajak pendapatan dan pajak bahan galian) atau Rp.71.928,05 (sudah termasuk pajak bahan galian dan pajak pendapatan). Berdasaran hasil analisis investasi, didapat nilai tiga parameter berikut; Net Present Value Rp128.769.327.542 Internal Rate of Return 162,8179% dan Payback Periode 0,6145 tahun. Dengan demikian dapat dinyatakan penambangan dan pengolahan bahan galian basalt secara teknis dan ekonomis layak untuk dilakukan.
Identifikasi Sungai Bawah Tanah Berdasarkan Nilai Resistivitas Batuan Pada Danau Karst Tarusan Kamang, Kabupaten Agam. Yuyu Fajriyatil Husni; Ansosry Ansosry
Journals Mining Engineering : Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (992.656 KB) | DOI: 10.24036/bt.v4i1.103301

Abstract

Abstract. Tarusan Kamang Lake is an area suspected of being a karst area and has an underground river. This is due to the presence of the lake that only appear or fill with water at certain times. For this reason, a research using geoelectric resistivity method with Wenner-Schlumberger configuration was used to obtain a 2D and 3D subsurface model. The retrieval of data is using by three measurement with a length of each track is 188 meters and the space is 4 meters. The results of measurement and interpretation of the data show that there are 4 types of constituent rock layers, namely sandstone clay, filite, quartzite and limestone. Based on 2D resistivity cross section models found a layer that has a tendency to form a tunnel that is in the layer of carbonate or limestone which has a range of resistivity values around 1.019-10.485 Ωm. This contour pattern is thought to be underground river passageways. This contour pattern is found on tracks 1, 2 and 3. This layer is found in the northwest direction towards the southeast at a depth of about 20-30 meters more than the surface. This carbonate rock layer is thought to have caprock or capsrock which is an underground river structure. Keywords:  Karst, Geoelectric, Resistivity, Carbonate, Capsrock.

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