cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota padang,
Sumatera barat
INDONESIA
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
 38   39   40   41   42 
Analisis Kestabilan Lereng BT 02 Jalan Masuk Tambang Bawah Tanah PT. Nusa Alam Lestari di Desa Salak, Kecamatan Talawi Kota Sawahlunto, Provinsi Sumatra Barat Rizka Anazakia; Raimon Kopa
Journals Mining Engineering : Bina Tambang Vol 6, No 3 (2021): 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.v6i3.112577

Abstract

PT. Nusa Alam Lestari is a company which engaged in coal mining business in Sawahlunto City.The level of mine slope stability is the most important factor that must be considered in the sustainability of mining activities. The writer conducted a research at the mining slope location of PT. NAL, which is at the coordinates of S00˚43'27,0 "/ E100˚47'11,1" with slope height 38m and slope 81˚.In this study, the writer used kinematic analysis with dips software and slope stability analysis using the Finite Element method. Based on the data from the kinematic analysis, the percentage value of potential landslides that occur at the research location is the plane failure which has a landslide potential of 25.37%. Second, the results of the analysis of the safety factor (SF) of the slope using the Finite Element method show that the results of the single slope analysis of the actual value obtained are SF = 1.22 (natural conditions) and SF = 0.88 (saturated conditions). Third, to obtain a safe SF, namely 1.25, a change in the geometry of the slope was carried out by reducing the slope angle from 81 ° to 72 ° in saturated conditions so that the SF value 1.25.Keywords: Open Mining, Slope Geometry, Finite Element Method, Safety Factor
Pemodelan Fragmentasi Hasil Peledakan Batu Andesit Di PT. Dempo Bangun Mitra Pangkalan Koto Baru Kabupaten 50 Kota Provinsi Sumatera Barat NILA RAHMAD DEFITA; Dedi Yulhendra Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 6, No 3 (2021): 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.v6i3.112510

Abstract

Rock breaking is one of the most important stages in mining operations. The commonly used method of rock breaking is blasting which aims to provide rocks according to the size of fragmentation that has been planned. The effectiveness blasting activities is one of the measurements success of loading activities which greatly affect the achievement of mining productivity targets. To produce good fragmentation, many things affect the blasting geometry, one of the things that can be controlled. To determine the level of fragmentation resulting from blasting, split desktop software can be used. This study aims to obtain a fragmentation modeling by predicting the fragmentation of blasting products at PT Dempo Bangun Mitra. The prediction of fragmentation in this study uses the Kuz-Ram model method and the Kuznetzov-Cunningham-Ouchterlony (KCO) model. To validate the method used, the correlation coefficient (R²) and Root Mean Square Error (RMSE) will be analyzed between actual measurements using split desktop software and the prediction method used. This study also evaluates the blasting geometry using R.L.Ash theory. Based on the data analysis carried out, the percentage of the calculation of actual blasting fragmentation results is 74.95% with a boulder percentage of 25.05%. Meanwhile, the results of the analysis of the fragmentation prediction of the Kuz-Ram model were 96.94% and the results of the analysis from the KCO model were 72.71%. To reduce the amount of boulder percentage, it is necessary to evaluate the blasting geometry based on the R.L.Ash theory by using the KCO model so that the boulder percentage is 0.05%, thus the number of boulders is less.
Analisis Risiko Bahaya dan Upaya Pengendalian Kecelakaan Kerja dengan Metode Hirarki Pengendalian Bahaya pada Area Penambangan Batu Gamping Bukit Karang Putih di PT. Semen Padang, Sumatera Barat Ilham Yufahmi; RUSLI HAR
Journals Mining Engineering : Bina Tambang Vol 6, No 4 (2021): 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.v6i4.114089

Abstract

PT. Semen Padang was founded on 18 March 1910 under the name NV Nederlandsch Indische Portland Cement Maatschappid (NV NIPCM) which is the first cement factory in Indonesia. Workers are always faced with various hazards and risks in the workplace that can cause work accidents and occupational diseases. This study aims to determine the risk of harm, determine the likelihood of work accidents and their consequences, and how to carry out the necessary hazard control against these hazards. Hierarchy of hazard control method was used in this study, the level of hazard risk was determined based on the risk matrix table so that the results obtained were 11 hazard parameters with a low risk level, 14 hazard parameters with a medium risk level and 5 hazard parameters with a high risk level.
EVALUASI KESTABILAN LUBANG BUKAAN DAN SISTEM PENYANGGAAN BERDASARKAN KLASIFIKASI GEOMEKANIKA PADA TAMBANG BATUBARA BAWAH TANAH SD-C2 LORI 1 DI PT. NUSA ALAM LESTARI, KOTA SAWAHLUNTO. Yudi Andrian; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 6, No 4 (2021): 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.v6i4.113846

Abstract

Underground mining is a mining system in which all activities take place below the earth's surface. In practice in the field, mining is carried out by making tunnels as access for lorries and opening paths and then opening branches using the Room and Pillar method. This research was conducted to determine rock strength, rock mass class, potential for wedge failure, stability of the hole opening, and recommendations for the appropriate support system based on rock mass rating and distance of the support. Based on the results of the analysis at a RMR value of 61,63 and 66 the FK value <1.5 using an average buffer distance of 2.01 m, it is necessary to change the distance between the supports to get a stable FK value (≥1.5). From the calculation results to achieve a stable FK value, at a RMR 61,63,and 66 the exact buffer distance ranges from 1.8 m - 2.1 m.
Perencanaan Jalur Ventilasi dan Sistem Jaringan Ventilasi Udara Pada Tunnel Mainshaft Auxiliaryshaft Tambang Bawah Tanah PT. Allied Indo Coal Jaya Sawah Lunto Noval Satria; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 6, No 3 (2021): 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.v6i3.112909

Abstract

There are two kinds of underground mining systems which are natural ventilation systems and mechanical ventilation systems. The air quantity at the front of J6 and J7 does not meet the permitted standards in the Minister of Energy and Mineral Resources RI No. 1827 K / 30 / MEM / 2018. The air quantity at the front of J6 is 1,136m3 / second the air needed is 7,233 m3 / second and the amount of air in front of J7 is 1,528 m3 / second while the amount needed is at 7,167 m3 / second. At Front Junction 6, the available air demand is 1,136 m3 / sec while the air required is 7,233m3 / sec. A blower of 8.3 Kw ≈ 10.5 Kw is needed, and at the front of Junction 7 the available air demand is 1,528 m3 / s, the air needed is 7,167 m3 / s for the air demand when mining activities are needed, the blower power is 8.9 Kw ≈ 10,5 Kw. New air circulation modeling design using Kazemaru software.
Analisis Kestabilan Lereng Jalan Tambang Menggunakan Metode Bishop Simplied Di Area Penambangan Bijih Besi PT.Aro Suka Mandiri, Provinsi Sumatera Barat. TAUFAN PRAYOGI; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 6, No 3 (2021): 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.v6i3.112549

Abstract

PT. Aro Suka Mandiri is a company engaged in the mining of Iron Ore which is located in Batang Pamo Village, IX Koto District, Sungai Lasi, Solok Regency, West Sumatra Province. PT. Aro Suka Mandiri made roads on the hillside by dividing the ridge using an excavator. The actual geometry in the field has an overal slop slope height of 21.497 m with a slope of 68 ° and the actual slope FK value in saturated conditions is 0.962. With the slope and steep road heights as well as the maximum range of excavator digging length, it is not efficient to carry out a road construction system on a slope with a single slope design. This study aims to plan the geometry of the overal slope to obtain a safe slope FK value of 1.3 This research was conducted using the bishop method to obtain the FK value of the overal slope slopes. The actual slope geometry was changed, for the overall slope height of 21.497 m with an angle of 58˚ so that the FK value was 1.325. Furthermore, the slope modification is carried out by making a bend on the slope using the bishop method and the FK value for the overall slope in saturated conditions is 1.316. From the data analysis, the results obtained for single slope 1 with a height of 10.008 obtained FK in a saturated condition of 1,701, while for single slope 2 a height of 11.489 obtained FK in a saturated condition of 2,176. So it can be concluded that after redesigning the slope geometry using the bishop method the slope can be stated in a safe condition.                                                                                                                           Keywords: initial geometry, simplified bishop, simplified janbu, safety factor
OPTIMALISASI KINERJA ALAT GALI MUAT DAN ALAT ANGKUT UNTUK MENCAPAI TARGET PRODUKSI OVERBURDEN MENGGUNAKAN METODE QUALITY CONTROL CIRCLE DI PIT 1 TIMUR PADA TAMBANG TERBUKA PT. ALLIED INDO COAL JAYA, PARAMBAHAN, SAWAHLUNTO, SUMATERA BARAT Aldi Fajri; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 6, No 4 (2021): 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.v6i4.114144

Abstract

PT. Allied Indo Coal Jaya is a company engaged in coal mining business. Mining methods applied by PT. Allied Indo Coal Jaya is an open pit mining and underground mine method. In the stripping and transportation activities of overburden in pit 1 east of PT. Allied Indo Coal Jaya operates 2 cat 330D2 L backhoe excavators as a load digging tool and 8 units of HINO 500 FM 260 JD dump truck transport equipment. The problem that often occurs in overburden removal activities is the amount of time obstacles that can be avoided by loading and conveyance. This causes the performance of loading and carrying equipment is not optimal so that the actual productivity achievement in October 2020 is only 61,870.72 bcm / month while the company's target is 110,000 bcm / month.A production management study was conducted by applying the Quality Control Cycle (QCC) method. This method makes it possible to conduct a review of the optimization of the performance of loading-carry digging tools and the obstacles experienced during the production process. The study began by recalculating the initial conditions taking into account the mining equipment used, namely CAT 330D2 L excavators and DT HINO 500 FM 260 JD. The actual productivity of 2 units of CAT 330D2 L excavators reached 62,381.28 bcm/ month and DT HINO FM 260 JD reached 58,027.58 bcm / month with a total of 8 units of DT, the match factor of heavy equipment reached 0.97.After evaluating the Fishbone Diagram, it is known that there are major problems, namely environmental factors, equipment, materials and man power that affect working time. The results showed that productivity increased with equipment of 2 units of CAT 330D2 L excavators by 110,461.46 bcm / month and production of 8 units of DT increased by 106,962,578 bcm. These results show that the performance of the tool can be improved to achieve the planned monthly targets. Keywords. Productivity, Exca CAT 330, DT HINO 500, QCC Methods
Evaluasi Sistem Penyanggaan pada Tunnel THC 04 CV Tahiti Coal Menggunakan Klasifikasi RMR Wahyu Marta Novri; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 6, No 4 (2021): 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.v6i4.114007

Abstract

Excavation of tunnels in underground mines is a fairly complex job, because it will result in changes in the balance of rock conditions that can cause failure. Therefore, a good geotechnical analysis is needed to provide proper treatment of the excavated rock.Based on the results of laboratory test, physical properties for siltstone is an average natural density of 2,4 gr/cm3 and for coal is an average natural density of 1,24 gr/cm3, and mechanical properties of PLI for siltstone is an average of 1,4 MPa and for coal is an average of 0,45 MPa. From the result of the Bieniawski-1989 RMR analysis, the rocks on the roof and the wall has a value of 54 and include to rock mass class III. RMR 54 has stand up time 37 days to 3 m of span. Based on the analysis using Cemal Biron theory in 1983, the value of stress to the cap is 528,06 kg/cm2, side post is 170,19 kg/cm2, the wood clearance stress is 623,75 kg/cm2, and the wood compressive strength is 368,75 kg/cm2. The FS of cap is using 20 cm diametre of wood is 1.18, and the FS of side post is using 23 cm diametre of wood is 2,17. To make the FS stable on cap side, it needs to upgrade the size of the wood to at least 22 cm of diametre, so the FS would be 1,57 (declared safe), or reduce the distance of the support system to maximum of 1,15 m.
Analisis Kestabilan Lereng Menggunakan Metode Janbu pada Lereng Lubang BMK 30 di CV Bara Mitra Kencana (BMK) Tanah Kuning, Desa Batu Tanjung, Kota Sawahlunto, Provinsi Sumatera Barat Yori Amzeri; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 6, No 4 (2021): 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.v6i4.113675

Abstract

CV Bara Mitra Kencana merupakan salah satu perusahaan yang bergerak di bidang pertambangan yang berlokasi di Kota Sawahlunto dengan bahan galian berupa batubara. Secara administrasi wilayah izin usaha pertambangan operasi produksi berada di Tanah Kuning, Desa Batu Tanjung, Kota Sawahlunto, Provinsi Sumatera Barat dengan luas 70,53 Ha. Pada tanggal 18 Desember 2020 hingga 18 februari 2020 tepatnya pada area dibelakang mes pekerja dan di depan pintu tunnel BMK 30 dengan ketinggian 24 meter, kemiringan 73˚. Dengan kondisi lereng tersebut berpotensi membahayakan pekerja yang berada dan menghambat produksi.Material penyusun lereng merupakan material batuan sandstone. Hasil pengujian sifat fisik dan mekanik batuan didapat nilai bobot isi asli 22,65 kN/m², nilai bobot isi jenuh 24,22 kN/m², nilai bobot isi kering 20,69 kN/m², kohesi (c) 39 mPa dan sudut geser dalam (ø) 44,08˚. Analisis nilai faktor keamanan (FK) dan rekomendasi geometri lereng aktual menggunakan metode janbu simplifed dengan ketinggian 24m dan kemiringan 73˚ di peroleh FK sebesar 1,222. Untuk rekomendasi geometri lereng dalam keadaan jenuh menggunakan metode janbu simplefied dengan ketinggian 24m dan kemiringan 69˚ di peroleh FK sebesar 1,257. Dari nilai faktor keamanan (FK) rekomendasi yang diperoleh dapat disimpulkan bahwasanya lereng dalam keadaan stabil.
Evaluasi Optimasi Alat Gali Muat Dan Alat Angkut Terhadap Produksi Batu Kapur Menggunakan Metode Match Factor, Fishbone dan LinearProgramming Simplex pada Blok Pendapatan Negara Bukan Pajak (PNBP) dan Pit Limit Barat (PLB) Bukit Karang Putih PT. Semen Padang Naya Makaristi Andrea; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 6, No 3 (2021): 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.v6i3.112664

Abstract

In the implementation of limestone mining of non-tax state revenue blocks (PNBP) and west pit limit blocks (PLB) at PT Semen Padang,the company uses 1 Hitachi EX-2500 (EH 6) excavator and 5 Komatsu 785-7 HD dump trucks on the former blocks, and 1 Catterpillar 6030 (EC 3) Excavator and 3 HD 785-7/777 D dump trucks for the latter blocks. The average actual productivity in October 2020 in the PNBP block for 1 unit of the EH 6 excavator was 1,086.85 tons per hour and 5 units of HD 785-7 dump trucks of 643.76 tons per hour, while the average actual productivity in the PLB block for 1 unit of excavator EC 3 amounting to 1,324.65 tons per hour and 3 units of dump truck HD 785-5/777 D amounting to 1,184.83 tons per hour. Both have not reached the target of 1200 tons per hour. This is due to the mismatch of digging and transportation equipment, the large distribution time for each dump truck, standby hours and breakdown resulting in less working time as planned.Efforts made as an evaluation of the mismatch optimization of excavators and conveyances use the Match Factor method. The amount of dump truck circulation times, standby hours and breakdowns were done by looking at the root causes of the Fishbone diagram. To achieve optimal production results with minimal costs, the Linear Programming Simplex analysis method was used as an improvised solution in this study.The results of this study are based on the actual conditions, the amount of production in the PNBP and PLB blocks for 1 month was 1,027,391.00 ton, based on the evaluation with the Match Factor method, the amount of production was obtained as much of 1,308,072.54 tons, based on the evaluation with the Fishbone method, the total production was 1,164,531.38 tons, and based on the application of the analysis of the Linear Programming Simplex method, the amount of production was 1,237,902.15 tons. As the most optimal solution to be applied in achieving the limestone production target in October 2020, which is 973,989 tonnes, the Fishbone and Linear Programming Simplex method can be used because it reaches the most optimal amount of production in 1 month, which is 1,404,012.58Ton.  Keywords: Productivity, Excavator, Dump Truck, Match Factor, Fishbone, Linear Programming Simplex 

Page 40 of 61 | Total Record : 609

 38   39   40   41   42 

Filter by Year

2014 2025


Reset
Filter By Issues
All Issue Vol 10, No 1 (2025): Journals Mining Engineering: Bina Tambang (On Progress) Vol 9, No 2 (2024): Journals Mining Engineering: Bina Tambang Vol 9, No 1 (2024): Journals Mining Engineering: Bina Tambang Vol 8, No 3 (2023): Journals Mining Engineering: Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang Vol 8, No 1 (2023): Journals Mining Engineering: Bina Tambang Vol 8, No 1 (2023): Journals Mining Engineering: Jurnal Bina Tambang Vol 7, No 3 (2022): Journals Mining Engineering: Bina Tambang Vol 7, No 2 (2022): Journals Mining Engineering: Bina Tambang Vol 7, No 1 (2022): Journals Mining Engineering: Bina Tambang Vol 6, No 5 (2021): Journals Mining Engineering: Bina Tambang Vol 6, No 4 (2021): Journals Mining Engineering: Bina Tambang Vol 6, No 3 (2021): Journals Mining Engineering: Bina Tambang Vol 6, No 2 (2021): Journals Mining Engineering: Bina Tambang Vol 6, No 1 (2021): Journals Mining Engineering: Bina Tambang Vol 5, No 5 (2020): Journals Mining Engineering: Bina Tambang Vol 5, No 4 (2020): Journals Mining Engineering: Bina Tambang Vol 5, No 3 (2020): JURNAL BINA TAMBANG Vol 5, No 3 (2020): Journals Mining Engineering: Bina Tambang Vol 5, No 2 (2020): Journals Mining Engineering: Bina Tambang Vol 5, No 1 (2020): Journals Mining Engineering: Bina Tambang Vol 4, No 4 (2019): Journals Mining Engineering: Bina Tambang Vol 4, No 3 (2019): Journals Mining Engineering: Bina Tambang Vol 4, No 2 (2019): Journals Mining Engineering: Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang Vol 3, No 2 (2018): Journals Mining Engineering: Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang Vol 2, No 1 (2015): Journals Mining Engineering: Bina Tambang Vol 1, No 2 (2014): Journals Mining Engineering: Bina Tambang Vol 1, No 1 (2014): Journals Mining Engineering: Bina Tambang More Issue