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
 41   42   43   44   45 
Analisis Pengaruh Geometri Peledakan Terhadap Fragmentasi Hasil Peledakan Dan Digging time Alat Gali Muat Backhoe Caterpillar 6030 Pada Area Pit Limit PT. Semen Padang, Indarung, Provinsi Sumatera Barat Muhammad Tareq Adha; Raimon Kopa
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.v6i4.113688

Abstract

PT. Semen Padang is a mining company that uses the open pit mining method, namely Quarry Side Hill mining, which is a mining method carried out to excavate deposits of industrial minerals or non-metallic minerals. The rock to be transported to the crusher must be blasted first. The results of field observations of the actual blasting geometry applied by the company obtained fragmentation of boulder-sized blasting results with a percentage of ±31%. The large percentage of boulder causes the diggability of the digging tool to be not optimal, where the digging time of the digging tool is not according to the company's target of below 12 seconds. This study aims to design the optimum blasting geometry to reduce the percentage of boulder so that loading activities become effective and the diggability of the digging tool increases. The research method is carried out by providing recommendations for blasting geometry based on the methods of C.J Konya and R.L. Ash. The proposed geometry applied in the field is: burden: 3 m, spacing of 3.5 m, stemming: 3 m, subdrilling: 1 m, ladder height: 8 m, blast hole depth: 9 m, powder column: 6 m, and powder factor : 0.26 kg/ton, where the boulder size fragmentation resulting from the analysis is 11.92%.
Perbandingan Volume Overburden Menggunakan Metode Cut And Fill Dengan Truck Count pada Pit Raja PT. Rajawali Internusa Jobsite Muara Lawai PT. Budi Gema Gempita, Lahat Provinsi Sumatera Selatan Muhammad Ilham Rasyidi; Ansosry Ansosry
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.v6i3.112583

Abstract

PT. Rajawali Internusa is one of the companies engaged in the mining world as a unit of heavy equipment provider (contractor) from PT Budi Gema Gempita as the owner, located in Lahat, South Sumatra Province. in the mining process the survey method is used to determine the distance nad elevation as well as the height of the excavated area. In determining the volume of overburden stripping, survey activities are carried out and determining the ratio of the means of transportation. Result transportation means ritase in march 58,013 bcm and april 60,080 bcm, and the result measured by the survey in march were 57,105.45 bcm and in april 59,084.985 bcm resulting in losses of Rp. 13,613,250.00 and Rp 14,927,625.00 in march and april. The difference causes the calculation of the annual reserve to be inappropriate at 880,000 bcm. There is a greater difference in ritase volume due to the rolled back material, there are operators who are not performing well and the 12 bcm stipulated by the company has not yet been met
Analisis Kestabilan Lereng Berdasarkan Data Klasifikasi Massa Batuan Untuk Evaluasi Geometri Lereng Pada Pit A di CV. Tekad Jaya . doly dakhyar hutasuhut; 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.v6i4.114060

Abstract

CV. Tekad Jaya is one of the Business Entities in the context of Domestic Investment which is engaged in mining, especially limestone mining. In open pit mining, mine slope design is one of the most important factors that must be considered in the sustainability of mining activities because unstable/stable slopes will result in landslides and disrupted/stopped production activities and even fatalities. Several methods are used to make a final design, including geomechanical and geotechnical analysis. There are weak areas that affect slope stability in CV. Tekad Jaya. And because there is no study on slope stability, it makes workers around the slope uncomfortable. The slope stability of the mine slope is the most important factor that must be considered in the continuation of mining activities. The initial slope geometry has a single slope with a height of 12 m with a slope of 800 .As a result of the study, the following conclusions were drawn. The type of landslide potential that occurs at the research location is direct topping with a landslide potential of 14.79%. Analysis of rock mass characteristics based on RQD analysis, RMR rock types at locations classified in class III. Second, the results of a single slope analysis of the actual values obtained by FK 1.239 in natural conditions, FK 1.159 in saturated conditions and FK 1.375 under dry conditions. Third, to get a safe FK, namely 1.25 the slope geometry is modified to reduce the slope angle, namely with a slope height of 12 m and a slope angle of 76° , then FK becomes 1,339 in nautical conditions, 1,276 in saturated conditions and 1,433 in dry conditions in dry conditions. safe.
EVALUASI KESTABILAN LERENG PADA LUBANG BUKAAN SAPAN DALAM 02 PT. NUSA ALAM LESTARI DI DESA SALAK, KECAMATAN TALAWI, KOTA SAWAHLUNTO, PROVINSI SUMATERA BARAT Pradera Junira; Raimon Kopa
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.v6i4.114163

Abstract

PT. Nusa Alam Lestari merupakan salah satu perusahaan yang bergerak dibidang pertambangan dan telah berinvestasi di Kota Sawahlunto. Bahan galian yang telah ditambang adalah batubara. Secara administrasi lokasi penelitian eksploitasi tersebut berada di Kecamatan Talawi, Kota Sawahlunto, Provinsi Sumatera Barat dengan luas 94,20 Ha. Jenis material pembentuk lereng adalah claystone dengan geometri lereng yang memiliki tinggi 45,5 meter dan memiliki kemiringan adalah 74o . Maka dari itu adanya rancangan geoteknik pada lereng sapan dalam 02 PT. Nusa Alam Lestari. Data hasil pengujian sifat fisik dan mekanik batuan claystone mendapatkan nilai bobot isi asli 20,45 KN/m3 , nilai bobot isi jenuh 24,62 KN/m3 , dan nilai bobot isi kering 16,93 KN/m3 , kohesi (c) = 55,7 MPa dan sudut geser dalam (ϕ) =47,82o . Analisis nilai factor keamanan (FK) dan rekomendasi geometri lereng menggunakan metode Janbu Simplified. Hasil dari penelitian yaitu, yang terjadi pada area PT. Nusa Alam Lestari Sapan Dalam 02 yaitu berupa longsoran baji (wedge sliding) dengan tingkat kelongsoran 73,03% dengan arah longsoran N81o /E64o . Maka dari itu dilakukan rekomendasi lereng tunggal dari lereng keseluruhan dengan ketinggian 22,75m dan kemiringan 74o dan faktor keamanan (FK) dalam keadaan natural adalah sebesar 1,558 dan faktor keamanan (FK) dalam kondisi jenuh adalah sebesar 1,415 dan faktor keamanan (FK) dalam kondisi kering adalah sebesar 1,725 dan lereng keseluruhan double bench dengan ketinggian 45,5m dan kemiringan lereng 63o dan faktor keamanan (FK) dalam keadaan natural adalah sebesar 1,404 dan faktor keamanan (FK) dalam kondisi jenuh adalah sebesar 1,315 dan faktor keamanan (FK) dalam kondisi kering adalah sebesar 1,512. Maka di dapatkan geometri lereng pada overal double bench dengan tinggi 45,5m, lebar bench 10m dan dengan sudut 630 mendapatkan nilai FK >1,3 (kondisi aman). Dan lereng tunggal pada lereng overall double bench dengan tinggi 22,75m, lebar bench 10m dan dengan sudut 74o mendapatkan nilai FK > 1,3. Dan di dapatkan FK lereng pada keadaan jenuh FK 1.315, pada keadaan kering FK 1.512, pada keadaan natural 1.404, oleh karena itu penulis merekomendasikan lereng keseluruhan double bench karena nilai FK yang aman.
ANALISIS KESTABILAN LERENG MENGGUNAKAN METODE JANBU SIMPLIFIED PADA AREA BUKIT TAMBUN 03 PT. NUSA ALAM LESTARI DI DESA SALAK, KECAMATAN TALAWI, KOTA SAWAHLUNTO, PROVINSI SUMATERA BARAT Hagit Kristiansyah; 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.v6i4.114187

Abstract

Berdasarkan observasi yang penulis lakukan pada lereng BT 03 terdapat serpihan batu yang berjatuhan dan banyak rekahan di permukaan lereng lubang tersebut mempunyai geometri yang terjal dan berpotensi untuk terjadi longsor yang menggangu jalannya aktivitas penambangan karena belum adanya rancangan geoteknik yang baik pada lereng tersebut. Berdasarkan hasil observasi didapatkan geometri lereng BT 03 dengan tinggi lereng (H) 24 m dan kemiringan lereng 70° dengan material penyusun lereng sillstone (batu lanau). Berdasarkan hasil dari pengolahan orientasi bidang diskontinu menggunakan analisis   stereografis arah dan tipe longsoran adalah N 183°E/74° dan longsoran bajih. Nilai rata-rata bobot isi asli dari material siltstone yaitu, 20,42 KN/m³, bobot isi kering yaitu, 18,82 KN/m³. bobot isi jenuh yaitu, 24,67 KN/m³. Nilai rata-rata hasil pengujian point load index adalah 3,9 MPa Nilai rata-rata hasil pengujian kuat geser batuan yaitu kohesi (c) 29,1 MPa dan sudut geser dalam (Ø) 47,81°. Kondisi kering dengan ketinggian 24 m dan single Slope angle 64° dengan FK 1,390. Tinggi lereng keseluruhan 24 m dan sudut kemiringan lereng keseluruhan 53° diperoleh FK 1,597. Kondisi jenuh dengan ketinggian 24 m dan single Slope angle 64° dengan FK 1,259. Tinggi lereng keseluruhan 24 m dan sudut kemiringan lereng keseluruhan 53° diperoleh FK 1,466. Kondisi asli dengan ketinggian 24 m dan single Slope angle 64° dengan FK 1,46. Tinggi lereng keseluruhan 24 m dan sudut kemiringan lereng keseluruhan 53° di peroleh FK 1,555.
Pelatihan Aspek Akutansi Badan Usaha Milik Desa (BUMDes) Karya Harapan Bersama (KHB) Kuala Secapah Kabupaten Mempawah Dalam Membuat Laporan Pertanggungjawaban Murad Murad
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.v6i4.114450

Abstract

Abstract. Various regulations that have been issued emphasize the independence of the Village and the independence of the Village in managing Village resources and sources of funds. The village as an autonomous region has exclusivity, among others, in terms of the authority to manage village finances independently, the authority to make village regulations, and the authority to make BUMDes. The objectives of this activity are: (a) To complete the capacity of BUMDes officers in managing financial transactions as the initial basis for preparing financial reports. (b) Improving the ability of BUMDes officers in completing and producing financial reports through the application of the accounting cycle. (c) Completing the ability of BUMDes officers in making financial reports as part of the BUMDes financial accountability report. Solutions and Outcomes: (1) Training on how to manage financial transactions such as journaling, making ledgers, trial balances. (2) Training on making financial reports through worksheets. (3) Financial reporting and accountability training. The output of the activities carried out was a change in attitude in terms of participants' understanding of BUMDes management and financial reporting after the delivery of materials and discussions during the training.Keyword: Village, BUMDes, Journaling, Trial balance, Work sheet
EVALUASI GEOMETRI PELEDAKAN UNTUK MENGOPTIMALKAN FRAGMENTASI PADA PENAMBANGAN BATU GAMPING DI PT. SEMEN PADANG, PROVINSI SUMATERA BARAT Febylina Valencia Agustina Rumwaropen; Heriyadi Bambang
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.v6i4.114588

Abstract

Abstract. In an industrial mineral mine, rocks are often found which are relatively hard and cannot be mined freely, so it is necessary to carry out a blasting process. The rock crushing process is carried out to reduce the size of the rock, making it easier to transport into the conveyance. Rock scavenging activities can be carried out in various ways, the method used depends on the nature and characteristics of the rock itself. The effectiveness of blasting activities is one of the benchmarks for the success of loading material which greatly affects the achievement of mining productivity targets. Blasting geometry is one thing that can be controlled. This study aims to evaluate the geometry of blasting by predicting the fragmentation of blasting results at PT. Semen Padang. Prediction of fragmentation in this study using the Kuz-Ram model and Split desktop 2.0 software. To validate the method used, the correlation coefficient (R²) and Root Mean Square Error (RMSE) will be analyzed between the actual measurement using split desktop software and the prediction method used. This study evaluates the geometry of blasting using the theory of R.L. Ash and C.J. Konya. Based on the data analysis conducted, the average percentage of escape is more than 80 cm from the calculation of fragmentation of the actual blasting results, namely 69.744% with a boulder percentage of 30.227%. Meanwhile, based on the data analysis performed, the average percentage that passes is more than 80 cm from the calculation of fragmentation of the Kuz-Ram model is 73% and the percentage retained by the Kuz-Ram model is 27%. To reduce the number of boulder percentages, it is necessary to evaluate the geometry of the blasting based on the R.LAsh and C.J.Konya theories which get the proposed geometry, namely the R.LAsh theory with a burden of 2.6 m, spacing of 3 m, hole depth of 8 m, height of ladder 7 m, column filling 3 ,4 m, stemming 2.6 m, subdrilling 1.04 m and powder factor 0.3 using the Kuz-Ram model, the percentage of boulder is 4.3%, thus the number of boulder becomes less.Keywords:  Blasting Fragmentation, R.L.Ash Theory, C.J.Konya Theory, Kuz-Ram Model 
Evaluasi Dan Rancangan Sistem Ventilasi Pada Tambang Batubara Bawah Tanah Lubang BMK 35 Lori 4 PT. Bara Mitra Kencana. Kota Sawahlunto, Provinsi Sumatera Barat. kurnia arrafi siregar; Rizto Salia Zakri
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.v6i4.114366

Abstract

CV. Bara Mitra Kencana is a coal mining company located in Talawi District, Sawahlunto City, West Sumatra Province. The company has experienced an incident  fatality since January 2020 which occurred in the tunnel BMK35 lori 4. In order to prevent fatality in other tunnels, therefore it has  research mine ventilation system in the tunnel BMK35 lori 4. This study was conducted to obtain a likely factor causes of fatalityBased on KEPMEN ESDM Number 1827K / 2018 pages 104,107, and 177 regarding mine ventilation, the measurement results obtained are close to or not following details such as the air temperature at BMK35 Lori 4  from 29˚C to 31˚C, and humidity is between 95% to 100%. BMK35 Lori 4 has a concentration of oxygen (O2) 19.8%, Sulfide (H2S) 0%, Carbon Monoxide (CO) 0.036% and Methane (CH4) has been 0.35%. refer to the minimum air quantity requirement of 2,546 m3/s that have been fulfilled, so that the air needed in the field  by 2.4 m3/s.In order to overcome this problem, The researchers designed an underground mine ventilation system using the Ventsim software. The ventilation design was planned to use 3blowers with 16-inch diameter.. The blowers had used supplies  air to C6 and workface through a duct in a total of 2 pieces and  blower for exhaust air out of the mine mouth through ducts as much as 1 piece. The results of the simulation using the Ventsim application showed the air quantity increased from 2.4 m3/s to 2.7 m3/s.
Studi Karakteristik Mineral Pirit pada Seam Batubara A2 dan C Di Pit 1 Utara Penambangan Banko Barat PT. Bukit Asam, Tbk, Tanjung Enim, Sumatera Selatan aufa fikri abdillah; ansosry ansosry; heri prabowo
Journals Mining Engineering : Bina Tambang Vol 6, No 5 (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.v6i5.115166

Abstract

PT. Bukit Asam, Tbk is a coal mining company in South Sumatera Province that supplies coal from Steam Power Plant (PLTU) with domestic shipments to Tarahan Steam Power Plant (PLTU) reaching 39.7% of coal production. The purpose of this research is to determine the potential characteristics of pyrite minerals that produce sulfur dioxide gas (SO2) which affects coal combustion and it can form an encrustation or slag in the steam power plant (PLTU) boiler pipes. The results of the XRF analysis for coal of A2 seam detected the oxidation of sulfur SO3 is 41.28% and Fe is 17.908% and XRF detected the oxidation of sulfur SO3 is 75.838% and Fe 8.026% for coal of C seam. Based on the results of microscopic analysis on coal of A2 seam and C seams, there are different of pyrite minerals types analysed. According to the analysis on coal of A2 seam that it contained an epigenetic pyrite mineral type. Mineragraphic analysis on coal of seam C that it contained a sygenetic pyrite mineral type. the framboidal pyrite mineral has fine crystals so it is reactable quickly and it is predicted that it can cause a slag during coal combustion in steam power plants (PLTU).
Analisis Kestabilan Lereng Pada Penambangan Batu Gamping Dengan Menggunakan Metode Elemen Hingga Pada Blok Puncak II CV. Tekad Jaya Jualifa Pradisti Gayatri; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 6, No 5 (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.v6i5.114938

Abstract

CV.Tekad Jaya is one of the Business Entities in the context of Domestic Investment (PMDN) which is engaged in mining, especially limestone mining, the stages of mining licensing owned by CV. Tekad Jaya is a Production Operation Mining Business Permit (IUP) for limestone excavation on a 6.5 hectare land area located in Jorong Bulakan, Nagari Tanjung Gadang, Lareh Sago Halaban District, Lima Puluh Kota Regency, West Sumatra Province. In the Puncak Block II area in CV. Tekad Jaya, researchers found a single slope with a height of 67 meters and a slope of 790, and there are many joints that become weak areas (discontinuous). The slope conditions have the potential to cause landslides that are dangerous for workers and hamper production activities. The purpose of this study is to recommend a good slope geometry design with safety factor (SF) and minimize the occurrence of landslides on the slopes of Puncak Block II CV. Jaya's determination. The results of testing the physical properties and mechanical properties of the rock obtained the original bulk density value of 25.115 kN/m3, saturated bulk density 25.615 kN/m3, dry density 24.546 kN/m3, cohesion value of 0.5406 MPa, and internal shear angle of 48.010. Analysis and recommendations using the finite element method. The results of the study, namely, the potential for landslides that may occur in the area of Puncak Block II CV. Tekad Jaya is in the form of a wedge failure with 21.86% probability of landslide occurring with landslide direction of N 2800 E/790. Through the analysis carried out using Phase II software, the results obtained are recommendations for overall slope geometry with a double bench model, a height of 67 m, bench widht of 6 m and overall slope of 760 with a value of safety factor (SF) in a natural state according to the finite element method, namely 1.37, while in a saturated state it is 1.34 and in a dry state it is 1.4. Based on the results of the analysis, the slopes are in a safer and more stable condition.

Page 43 of 61 | Total Record : 609

 41   42   43   44   45 

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: Jurnal Bina Tambang Vol 8, No 1 (2023): Journals Mining Engineering: 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