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Journals Mining Engineering : Bina Tambang
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.
Arjuna Subject : -
Articles 609 Documents
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Evaluasi Teknis Geometri Peledakan Terhadap Fragmentasi Batu Gamping Di PT. Indocement Tunggal Prakarsa Tbk, Di Desa Palimanan Barat, Kecamatan Gempol, Kabupaten Cirebon, Jawa barat Putri Pasaribu; Dedi Yulhendra, S.T, M.T
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.v7i2.119051

Abstract

Abstract. PT. Indocement Tunggal Prakarsa Tbk is a producer engaged in limestone mining, which is located in the village of West Palimanan, Gempol District, Cirebon Regency, West Java. The mining method used by PT. Indocement Tunggal Prakarsa Tbk is an open pit mining system, using the Quarry mining method. From the results of the author's observations at PT. Indocement Tunggal Prakarsa Tbk saw a lot of fragmentation resulting from blasting which resulted in boulder. The size of the boulder based on company standards is 50 cm with the percentage of rock fragmentation resulting from blasting 50 cm at PT. Indocement Tunggal Prakarsa Tbk is still relatively high at around ± 30%, while the fragmentation expected by PT. Indocement Tunggal Prakarsa Tbk < 50 cm with a blast yield of 80%. This study aims to design the optimum blasting geometry to reduce the percentage of boulder so that the jaw crusher specifications are met and do not increase the cost of renting the breaker unit again. The research method is carried out by providing the results of the analysis of the Kuz-Ram method. Then one of the proposed geometries is chosen which is better while the proposed geometry is given, namely Burden 2 m, Spacing 2.5 m, Stemming 2.2 m, Subdrilling 0.19 m, Level height 5,8 m, Depth of the blast hole 6.68 m, Powder column 4.4 m, Powder factor 0.59, Kuzram Fragmentation 20 %.
STUDI TINGKAT KEBISINGAN DI AREA LIMESTONE CRUSHER VI (LSC VI) DI PT.SEMEN PADANG Gilang Haris Prasetyo; Dr. Fadhila S.Pd,.M.Si; tri gamela saldy,S.T.,M.T
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.v7i2.119015

Abstract

Tingkat kebisingan yang melebihi nilai ambang batas dapat mendorong timbulnya gangguan kesehatan pada pendengaran dan risiko kerusakan pada telinga para pekerja yang berada di area LimeStone Crusher VI, baik bersifat sementara maupun permanen. setelah terpapar kebisingan dalam periode waktu tertentu tanpa menggunakan alat proteksi yang memadai seperti earplug dan earmuff. Kebisingan yang berlebihan juga dapat mengganggu kenyamanan dan produktifitas para pekerja, Oleh karena itu, maka diperlukannya kajian mengenai dampak tingkat kebisingan di area Limestone Crusher VI (LSC VI) untuk mengetahui seberapa besar tingkat kebisingan serta upaya yang dilakukan untuk mengurangi dampak kebisingan tersebut. Proses pengambilan data dilakukan dengan mengambil data yang dibutuhkan untuk penelitian pada lokasi pengamatan seperti data tingkat kebisingan, tingkat pajanan kebisingan dan data kuesioner pekerja. Data yang telah didapatkan pada penelitian menunjukkan tingkat kebisingan yang ada di area LimeStone Crusher VI (LSC VI) Berada di atas 85 dB. Tingkat kebisingan paling tinggi di dapatkan adalah 96 dB pada pukul 15.00 dari sumber kebisingan, Tingkat kebisingan paling rendah didapatkan adalah 87 dB pada pukul 07.00 dari sumber kebisingan. Dampak yang ditimbulkan dari risiko terkena pajanan kebisingan terhadap para pekerja di area LimeStone Crusher PT.Semen Padang yaitu seperti gangguan komunikasi, gangguan psikologis, dan gangguan pendengaran.
Analisis Kestabilan Lereng Lowwall Section A dan Section B Pit Middle Menggunakan Limit Equilibrium Method (Morgenstern-Price) di Tambang Terbuka PT. Banjarsari Pribumi, Kecamatan Merapi Timur, Kabupaten Lahat, Sumatera Selatan M Iqbal Alfidqi Fauzi; Raimon Kopa
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.v7i2.118984

Abstract

This study focuses on the Lowwall Pit Middle Slope which is divided into 2 Sections, namely Slope Section A and Slope Section B. In the crest section of the slope there is a disposal area. From the results of field observations, water seepage was found at RL ± 40 mdpl and RL ± 70 mdpl. In addition, cracks were found at RL±90 mdpll and RL±100 mdpl in the disposal area. The impact of this finding is the landslide that occurred on the Lowwall Section A Slope. In addition, the high rainfall at PT. Banjarsari Pribumi causes the value of cohesion and shear angle in the material making up the slopes to decrease. The method used in analyzing the stability of the Lowwall Pit Middle Slope is the Limit Equilibrium (Morgenstern-Price) method which is applied in slide 6.0 software. The analysis was carried out based on the topography of December 2021. The results of the stability analysis of the Lowwall Pit Middle Slope for Section A obtained that the saturated FK was 1.072 and the saturated FK Section B was 1.192. From the analysis results obtained, it is explained that the Lowwall Pit Middle Slope is in a critical condition. For this reason, the authors carry out simulations of actual slope dewatering and simulation of resloping + dewatering of the Lowwall Pit Middle Slope. The results of the 5 m dewatering simulation for section A obtained the FK value of 1,352 and for section B of 1,306. The results of the resloping + dewatering simulation for section A obtained the FK value of 1.542 and for section B of 1.384.
Analisis Kelayakan Investasi Menggunakan Metode NPV di KUD Sinamar Sakato Fendri Amir; Tri Gamela Saldy
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.v7i3.120564

Abstract

Industrial development in Indonesia is very rapid, especially in the mining sector, where Indonesia is a country with very rich mining sector natural resources, so that it is in the spotlight of investors to establish mining sector companies. As an industry that is currently developing, it should be noted that setting up a mining company requires a lot of money or capital. Even so, the profits to be obtained are also very large which makes the mining sector industry in great demand by investors. This study uses the NPV method to see whether the investment is feasible or not. This project is said to be feasible because the NPV value obtained is IDR 496.473.602.258,14 or greater than 0. Keyword:  Feasible, NPV
Evaluasi Geometri Jalan Angkut Komatsu HD785-7 Dari PNBP 4 Ke Crusher 6 Tambang Batu Kapur PT. Semen Padang. Ryan Markah; Raimon Kopa; Tri Gamela Saldy; Rudy Anarta
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.v7i3.120208

Abstract

Every mining activity always requires a haul road to move the minerals to be produced. PT. Semen Padang is an open-pit mining company that produces limestone or limestone as a cement making material. One of the mining activities that can affect the production target is the transportation process. From the results of observations about the geometry of the PNBP 4 to Crusher 6 haul roads, several non-ideal road geometries were found that could affect the production achievement. The non-ideal condition of the haul road geometry found is, the condition of the straight road is 18.9 meters wide, while the ideal is 18,025 meters. Then the corner with a width of 22.8 meters, while ideally 26,154 meters. Then the road slope is found to be 21.8%, while ideally it is 10-12%. The condition of some of these road geometry factors affect the cycle time of the material transport process. Where the condition of hauling the contents along the haul road takes 7 minutes 48 seconds. While the condition of empty hauling takes 5 minutes 23 seconds. In the comparison of actual field data with grade calculation results, it was found that there were still road grades that were not ideal, namely in the segment 25-27. Then to achieve the ideal cross slope value of 2%, then the height difference between the left and right roads to the haul road axis that must be made is 18 cm. Based on the results of the evaluation of the haul road geometry from PNBP 4 to Crusher 6, it can be concluded that there are actual road conditions that are not in accordance with the ideal calculation standard. Therefore, it is necessary to increase the width on the straight condition road and increase the width on the bend condition road. In the superelevation section, the height difference that must be made between the inside and outside of the haul road bend is 1,02 meters. Then to overcome the runoff water that inundates the haul road during rainy weather, it is necessary to make several drainage channels.
Evaluasi Penerapan Ijob Isafety Ianalysis Idan Istandard Operational Procedure Ipada Ipenambangan Ibatu Igamping Ipt. Anugrah Ihalaban Sepakat, Ikabupaten Ilimapuluh Ikota, Sumatera Barat Farhan Dwi Almukharabi; Fadhilah Fadhilah
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.v7i2.119049

Abstract

PT. Anugrah iHalaban iSepakat iis ia ilimestone imining icompany iwhich iis ilocated iin iLaharkumbuh, ififty icities. iPT. iAnugrah iHalaban ihas iagreed ito iimplement ioccupational isafety iand ihealth i(K3) iin imining iactivities, ibut ithe iimplementation iis istill inot ioptimal. iThis iis idue ito ithe inon-optimal iuse iof ipersonal iprotective iequipment i(PPE), isome iworkers iwho ido inot icomply iwith icompany iregulations, ithe ioccurrence iof iwork iaccidents, ithe ineed ifor irepairs iand iadditions ito ithe irequired iJSA iand iSOP. iThe iresults iof ithe iquestionnaire ianalysis iof ithe ievaluation ilevel iof ithe iimplementation iof iJSA iand iSOP ion ithe ioperation iof iexcavators, idump itrucks iand icrushers ias ia iwhole iat iPT. iAnugrah iHalaban iagreed ithat ibased ion ithe iLiker iscale icalculation, ithe iJSA ivalue iwas i86% iand ithe iSOP iwas i86%. iWith ithe icriteria ifor ithe iJSA ivalue ifor iexcavator ioperation i88% iand iSOP i89%, ithe iJSA ivalue ifor idumptruck ioperation iwas i87% iand iSOP i86%, ithe iJSA ivalue ifor icrusher ioperation iwas i78% iand iSOP i82%. iThe ifrequency iof iaccidents iin i2021 iwas i10.41 iwithout ilosing iwork idays iand iwork iaccidents iin imining iareas ioccurred i3 i(three) itimes. iImprovements iand iadditions ito iJSA iand iSOPs icarried iout ion iexcavator, idumptruck iand icrusher ioperation iactivities.
Evaluasi Sistem Penyaliran Tambang Batubara di Pit 1 PT. Benal Aiti Bara Perkasa Jobsite Jpc Desa Pemusiran Kecamatan Mandiangin Kabupaten Sarolangun Provinsi Jambi silvi anadia; Rusli Har
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.v7i2.119055

Abstract

ABSTRACT Silvi Anadia: Evaluasi Sistem Penyaliran Tambang Batubara di Pit 1 PT. BenalAiti Bara Perkasa Jobsite Jpc Desa Pemusiran Kecamatan Mandiangin Kabupaten Sarolangun Provinsi Jambi              High rainfall in the mining industry can affect mining operations, an optimal form of effort for handling air entering the mining area through a form of mine drainage system study. The purpose of the research is to control runoff water entering the mine openings so that the mining process is not disturbed. The calculation of the planned day rainfall to determine the use of gumbel distribution, the planned rainfall is 186.290501 mm/day for a 25 year return period, the annual runoff discharge with a 25 year return period is 0.30804 m3/s. Based on the results of the analysis between the planned annual runoff discharge and the pump's capacity, there must be at least 2 selwood pumps available to cope with high-intensity rain, if not in the rainy season, one pump is sufficient to keep the air from disturbing mining activities. The designed sump has a base side of 90 m while the surface side of the sump is 84 m with a depth of 5 meters and a wall angle of 60° sump has a volume of 37,890 m3. The dimensions of the open channel that will be used are trapezoidal in shape because it is easier to manufacture Keyword : Precipitation, sump, pump, open channel,    
Analisis Potensi Terjadinya Swabakar Batubara Dengan Penambahan Chemical Pada Stockrom Jetty di PT. Bhumi Sriwijaya Perdana Coal, Desa Bero Jaya Timur, Kecamatan Tungkal Jaya, Kabupaten Musi Banyuasin, Sumatera Selatan Muhammd Thoriq; Heri Prabowo
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.v7i3.120575

Abstract

PT.Coal (Bhumi Sriwijaya Perdana)BSPC) is a coal mining company in the East Sumatra Province's East Bero Jaya Village, Tungkal Jaya District, Musi Banyuasin Regency.PT.An open pit mining system is put in place by BSPC.The grade of the coal in PT.The total moisture content of Bhumi Sriwijaya Perdana Coal is extremely high, at 45 percent.Because coal has a high total moisture content, PT.In order to maintain total moisture, BSPC innovates by utilizing chemicals that contain surfactant polymers.Quantitative research, also known as experimental research, is the research method used.The coal parameters' values changed in the research that was done.Ten tons of coal and one liter of chemicals were used in the tests to compare how well Coalguard (P2), Supercoat (P3), and not using water (P1) performed.The pile's temperature dropped from 52.80°C on March 8, 2022, to 40.30°C on March 27, 2022, if Coalguard 575 was applied, compared to the initial temperature at which Supercoat was applied. The pile received G-Clean Supercoat and Coal Guard, respectively.It is known that the addition of a chemical (G-Clean Supercoat, Coal Guard 575) reduces the temperature at which swabaka occurs by an average of 54.77 degrees Celsius, 44.02 degrees Celsius, and 44.79 degrees Celsius for the P1, P2, and P3 piles, respectively.The use of polymer in coal has the potential to lower the total moisture value, as demonstrated by the effect that the polymer has on the parameters of the coal following its application, particularly the value of the water content. 
Analisis Flyrock Handling Dalam Kegiatan Peledakan Untuk Mendapatkan Radius Aman Alat Pada Quarry Bukit Karang Putih PT. Semen Padang Sumatera Barat Jeffry - Albadri; Dedi Yulhendra
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.v7i3.120145

Abstract

PT. Semen Padang is a mining company that uses the open pit mining method, namely Quarry Side Hill mining, which is mining method carried out to excavate deposits of industrial minerals or non-mettalic minerals. The rock to be transported to the crusher must be blasted first. The quality of the blasting results will determine the success of the blasting activity. Explosives release a large amount of energy during an explosion, only 20-30% is used to crush and move rocks and the rest is wasted in the form of environmental side effects. One of the impacts of blasting activities on the environment in the area around mining is a flyrock. At 15:15 location PT. Semen Padang, precisely on front 5, is located close to one of the generator units which is also a spotlight, this unit is 63 m from the blasting location. The author finds several flyrock throwing directions that are not in accordance with the freeface direction, but sideways or in an unwanted direction and produce excess flyrock that can hit the generator unit or equipment behind or beside the blasting area which was thought to be safe before. Flyrock throwing distance analysis will be carried out using the RIchard & Moore empirical model and Ebrahim Ghasemi dimensional analysis model.
Studi Potensi Bahan Galian Pasir-Kerakal di Sungai Titian Panjang, Kecamatan Lembah Gumanti, Kabupaten Solok, Provinsi Sumatera Barat Ikras Fadli Ramadhani Eye; Harizona Aulia Rahman; heri pra bowo
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.v7i2.119016

Abstract

Sungai - sungai yang ada di Kecamatan Lembah Gumanti mempunyai sumber daya alam bahan galian bahan galian pasir - kerakal atau sering disebut sirtu yang cukup besar, termasuk Sungai Titian Panjang. Atas kondisi itu maka sangat perlu dilakukan kajian potensi penambangan bahan galian tersebut sehingga nantinya dapat dijadikan sebagai acuan bagi pemerintah tentang besarnya potensi bahan galian pasir-kerakal yang dimiliki. Dalam Peraturan Pemerintah Republik Indonesia Nomor 27 Tahun 1980 tentang penggolongan bahan-bahan galian, bahan galian pasir termasuk kedalam golongan C sepanjang tidak mengandung unsur-unsur mineral golongan A maupun golongan B dalam jumlah yang berarti ditinjau dari segi ekonomi pertambangan. Untuk mendapatkan potensi bahan galian pasir-kerakal penulis menggunakan metode eksplorasi geolistrik. Dalam eksplorasi geolistrik ada beberapa jenis konfigurasi yang digunakan yaitu konfigurasi Weiner, konfigurasi Schlumberger, konfigurasi Dipole-dipole. Penulis menggunakan metode konfigurasi Schlumberger idealnya jarak MN dibuat sekecil - kecilnya, sehingga jarak MN secara teoritis tidak berubah. Tetapi karena keterbatasan kepekaan alat ukur, maka ketika jarak AB sudah relatif besar maka jarak MN hendaknya dirubah. Perubahan jarak MN hendaknya tidak lebih besar dari 1/5 jarak AB. Keunggulan konfigurasi Schlumberger ini adalah kemampuan untuk mendeteksi adanya non-homogenitas lapisan batuan pada permukaan, yaitu dengan membandingkan nilai resistivitas semu ketika terjadi perubahan jarak elektroda MN/2. Setelah dilakukan analisis dan pengujian laboratorium, didapatkan hasil Berdasarkan permodelan 3D menggunakan Software Surpac didapatkan volume endapan pasir-kerakal adalah 255.828,041 BCM atau 460.490,474 Ton dengan density pasir-kerakal adalah 1,8. Hasil pengujian menggunakan larutan Natrium Sulfat (NaSO4) dengan suhu 110°C menunjukkan nilai soundness test maksimum 5,12% dan nilai minimum 0,17% sehingga material bahan galian pasir–kerakal ini berkualitas baik dan sangat tahan terhadap pelarutan jika terpengaruh oleh larutan campuran bahan beton maupun aspal.

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