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
 44   45   46   47   48 
Domain Geologi Material di Area Pit Limit Menggunakan Analisis Statistik Pada Tambang Quarry PT. Semen Padang, Sumatera Barat Helio Gina Febriandika; Adree Octova; Della Aulia Aidil
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.v6i5.115183

Abstract

At PT. Semen Padang mining activities carried out in an area of 206 Ha in the existing area. The remaining reserves at the existing location are estimated to be exhausted in September 2019, so PT. Semen Padang will expand its mining area to the Pit Limit and Tajarang areas. Before conducting mining activities in the Pit Limit area, it is necessary to know the geological domain of this material to find out the areas that will be mined. Geological domain is carried out using statistical analysis. Database information for the estimation of limestone, tuff, silica, soil and basalt resources in the Pit Limit area was obtained from exploration drilling activities derived from 20 drill hole data with depths ranging from 50 meters to 200 meters depth. Based on the lithology histogram in the pit limit area, we can see that the limestone content contained in the Pit Limit area is far more than other materials, so this area is economical for mining.
Keserasian Alat Gali Muat dan Alat Angkut Dalam Meningkatkan Produktivitas Pengupasan Overburden Pada Pit Utara PT. Bara Prima Pratama Jobsite Batu Ampar, Kabupaten Indragiri Hilir, Provinsi Riau. Roges Tomara Mahesa; Adree Octova; Yoszi Mingsi Anaperta
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.v6i5.115144

Abstract

Abstract. In mining activities, production is an activity that produces minerals. In coal mining activities, there are two production operations carried out, namely overburden production and coal production, which to produce this production mechanical equipment is used which plays an important role in supporting the success of the production process. In the use of these mechanical tools, it is necessary to do precise calculations so that the capabilities of the tools can be used optimally and have a high level of efficiency to achieve production targets. PT. Bara Prima Pratama implements an open pit mining system with coal being mined. The mining method used is the Conventional Mining method, which is a mining method using digging and loading equipment and transportation equipment. The company is trying to meet its production targets with the aim of being able to meet domestic and export demands. In the overburden stripping activity, PT. Bara Prima Pratama uses a combination of mechanical equipment, namely a Excavator Doosan DX 500 LCA HD and Dump Truck Hino 500. For the compatibility of the work of the digging and loading equipment, a Match Factor value of 0.776 is obtained, which means that the digging-loading tool works less than 100% and the conveyance works 100% so that there is waiting time for the digging and loading equipment. After analyzing the Match Factor, the value is 1.03 so that the matching fleet calculation results are appropriate and the same. There is no waiting time for loading and unloading equipment or transportation equipment.
Analisis Ground Vibration pada Kegiatan Peledakan Overburden di Pit Timur PT Kuansing Inti Makmur, Jobsite Tanjung Belit, Kecamatan Jujuhan, Kabupaten Bungo, Provinsi Jambi Intan Juita; Mulya Gusman
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.v6i5.114949

Abstract

PT Kuansing Inti Makmur is a national private company engaged in the coal miningindustry using the blasting method. Ground vibration is one of the negative impacts of blasting onthe environment and surrounding buildings if it exceeds the predetermined standard. This mininglocation is close to Tanjung Belit Village which is currently 500 meters from the settlementaccording to the direction of mining progress. The threshold value for ground vibration is 0.9mm/s based on the standards of PT Kuansing Inti Makmur. Ground vibration measurement datawere analyzed using scaled distance theory to obtain the effect of explosive charge and distance onPPV which was divided into two based on the row direction (Row B – T and Row S – U) in orderto get more referentative results. In the direction of row B – T using the power regression equation,based on the calculation results obtained by the equation PPV=4844,8 x-1,648. Meanwhile, for the direction of row S – U using the average calculation using Microsoft Excel, the equation PPV =3669,05 x-1.6 is obtained. The vibration safety method uses a longer delay in the middle of the segment. Based on the scaled distance theory, predictions of explosive charge are obtained toachieve the specified vibration standard, namely for row B – T 55,5 kg ANFO at a distance of1600 meters and row S – U 78,6 kg ANFO at a distance of 1600 meters. By using the blastingmethod with a longer delay in the middle of the segment, it is more effective to reduce vibrationaccumulation and predict vibrations with good material quality results.
Analisis Investasi Pengadaan Alat Gali Muat dan Alat Angkut PT. Benal Aiti Bara Perkasa Kecamatan Mandiangin Kabupaten Sarolangun Provinsi Jambi Fakhri Afif Rifa'i; 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.v6i5.115185

Abstract

This research is based on the company's planning for the procurement of digging and loading equipment and transportation equipment. The unit requirements planned by PT. Benal Aiti Bara Perkasa is 2 fleets and the Match Factor calculation is based on 2 operating fleetsIn this research, the method used is descriptive quantitative research method. This research will result in the compatibility of loading and unloading equipment and a comparison of the alternative of buying and renting units.Based on the results of the study, it shows that the equipment compatibility has not been achieved on the operating fleet. Based on his calculations, it can be seen that the unit requirements to achieve the Match Factor are 1 Excavator and 8 Dump Trucks. Alternative purchases and leases will provide existing investment components such as equipment procurement costs, operating costs and fixed costs that will affect the feasibility of investments such as Net Present Value (NVP) and Internal Rate of Return (IRR). The alternative purchase resulted in an NPV of Rp. 53,210,015,722, an IRR of 53.3% and a PI of 2.42. While the alternative rental NPV generated is Rp.29,090,911,882, IRR is 39.2% and PI is 1.82. The purchase alternative is the best choice than the rental alternative, because it gets a bigger profit. Keywords: Match Factor, Descriptive Quantitative, NPV, IRR and PI
Analisis Perhitungan Debit Air Tanah pada Sistem Penyaliran Tambang Terbuka di Pit X PT. Bukit Asam Tbk., Kabupaten Muara Enim, Provinsi Sumatera Selatan Trio Mei Kristin Zendrato; Rusli HAR
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.v6i5.115179

Abstract

The existence of ground water is very dependent on the amount of rainfall and the amount of water that can seep into the ground. Other influencing factors are lithological conditions (rocks) and local geology. Loose sandy soil conditions or rocks with high permeability will facilitate the infiltration of rainwater into rock formations. On the other hand, rocks with strong and compact cementation have the ability to absorb small amounts of water. The problem of water entering the mine site and flooding the mining site is a very important problem for the company. This is because water entering the mining site can interfere with mining activities and result in production delays for the company in achieving the production targets that have been set, so that if this happens, the company will experience losses both materially and time. From the results of the analysis of the calculation of groundwater discharge with the determination of the value of K (hydraulic conductivity), the total groundwater discharge that enters the pit is 10,049 m3/second, 602,94 m3/minute, 36.176,4  m3/hour or 868.233,6 m3/day.
Kajian Teknis Sistem Mine Dewatering dalam Upaya Pencegahan Genangan Air di Area Penambangan Pada Tambang Batubara Bawah Tanah Seam C2 Site Sapan Dalam PT Nusa Alam Lestari, Desa Salak, Kecamatan Talawi, Kota Sawahlunto Nurdiani Fauziah; Rusli HAR
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.v6i5.115129

Abstract

At the research site, the problem that often occurs is the entry of water into the mining front. The water comes from ground water flowing through the fractures. Therefore, a mine drainage system is needed to support mining activities. At the mining site SD-C2 Lori 1 has 4 control tanks, where the pumping system is carried out by flowing water from the mining area to the control tank until the next control tank reaches the main sump. Based on data analysis, it can be concluded that the study site has an intensive fracture structure with a secondary permeability value of 10-2 with a free discharge classification. Groundwater discharge in all fractures is 10,32 m3/day. Based on the specifications of the existing pump, it should be able to compensate for the incoming water discharge, but because the head of the pump is greater than the maximum head of the pump in control tank 1 to control tank 2, the pump is unable to drain water properly until control tank 2. In addition, the number of control tanks with a total dimension of 9.5 m3 has not balanced the daily incoming water discharge with a total discharge of 10.32 m3/day, so it is recommended to add 1 control tank with dimensions of not less than 0.82 m3.
Analisis Kestabilan Lereng Disposal Dengan Menggunakan Metode Bishop Di Site Puncak Jaya CV. Tekad Jaya Lareh Sago Halaban Kabupaten Lima Puluh Kota Nadilla Putri; Tri Gamela Saldy
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.v6i3.116288

Abstract

CV. Tekad Jaya has a Production Operation Mining Business Permit (IUP) for limestone excavation on an area of 6.5 hectares located in Jorong Bulakan, Nagari Tanjung Gadang, Lareh Sago Halaban District, Limapuluh Kota Regency, West Sumatra Province. On CV. Tekad Jaya there is an avalanche that occurs on the slopes of the disposal heap. The avalanche is assumed to be an arc avalanche with the initial slope geometry before the avalanche is 72o and a height of 44 meters. The landslide resulted in disruption of production activities due to the position of the disposal area being above the production area. To avoid landslides in the future and to get the ideal slope geometry, a thorough geotechnical study is needed and what method will be used. Based on the results of research and analysis conducted at the research location, the value of geotechnical parameters after the parameters of the physical and mechanical properties of the slope material were tested, namely the natural bulk weight of 11,94 kN/m3, the dry weight of 10,24 kN/m3, and the saturated weight of 13,48 kN/m3. While the cohesion value is 52.147 kN/m3, and the internal shear angle is 24.45o. The FK value based on the parameter values of the physical-mechanical properties of soil samples in the laboratory is the slope safety factor value in dry conditions is 1.171 and in saturated conditions is 1.002. The results of the study obtained that the safety factor (SF) value of the overall slope geometry recommendation with a slope height of  44 meters and a slope angle of 48o for dry conditions according to the Bishop Simplified method was 1,49, while according to the Hoek and Bray method was 1,89. And for the saturated condition, the safety factor (SF) value obtained according to the Bishop Simplified method is 1.304, while according to the Hoek and Bray method, it is 1.19.
Analisis Kestabilan Lubang Bukaan Tambang Bawah Tanah Berdasarkan Klasifikasi Geomekanika (RMR-System) Site D.25 Lokasi III PT. Dasrat Sarana Arang Sejati, Parambahan, Desa Batu Tanjung, Kecamatan Talawi, Kota Sawahlunto Ari Ardila; 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.v6i3.116430

Abstract

From the measurement of several parameters of the RMR method that has been carried out, at Site D.25 Location III for siltstone is in class III (fair rock) with an RMR value of 57 with Stand Up Time is 1200 hours or 50 days with a planned production advance hole width of 3 meters, and coal is in class III (fair rock) with an RMR value of 51 with a Stand Up Time of 600 hours or 25 days with a planned production advance pit width of 3 meters. Based on the RMR weighting data then: if using rock bolt (20 mm diameter fully grouted) with a length of 4 m and a spacing of 1.5-2 m on the walls and roof then add the installation of wire mesh, shotcrete thickness of 50-100 mm on the roof and 30 mm on the wall. If using wood reinforcement, then for the reinforcement of the opening holes, a recommendation for a support system that should be applied to optimize the support to be safe and profitable is obtained, namely with a wood diameter of 20 cm, a distance between supports of 1.5 m and FK 1.5.
REKONSILIASI RENCANA SEQUENCE PENAMBANGAN DENGAN REALISASI DI PIT X PADA BULAN MEI 2021 DI PT. BUKIT ASAM,TBK. TANJUNG ENIM, SUMATERA SELATAN Didan Ramaddandy; Rizto Salia Zakri
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.v6i3.115979

Abstract

During mining sequences at Pit X, PT. Bukit Asam,Tbk incompatibilities over-stripping, overcut, and undercut frequently happen as a result of the reconciliation between mine plan design with realization in the field. These incompatibilities can be happened repeatedly every month due to undercut material, proven by the reconciliation data on March and April 2021. So there needs a reconciliation on May 2021 to figure out incompatibility between mine plan design with the realization, obtain the causing factors and solutions to minimize incompatibilities occurred. The analysis to find out the incompatibilities on May 2021 was carried out by overlay the mine progress map with mineplan design, creating cross-sections, calculating the volume from the latest mining activity of the month, analyzing causing factors with the actual data to obtain the solutions of the problems. Analysis results proved that on May 2021 over-stripping, overcut, and undercut incompatibility sequentially occurred for overburden of 226.950,79 BCM, 147.927,12 BCM, and 491.891,14 BCM, while for coal it is 59.249,65 Tons, 77.733,18 Tons, and 134.776,15 Tons. From the analysis, the causes of the incompatibilities are the number and placement of fleets that don’t base on the plan, low productivity of digging and loading equipment, incompatibility of mechanical equipment used, and supervision factors. Those incompatibilities affect the increase of the stripping ratio for the next month’s plan. Several actions can be done such as replacing digging and loading equipment on both fleets with higher specifications, adding mining boundaries, and improving supervisions in the field to minimize the incompatibilities.
Kajian Stockpile Management Terhadap Nilai Safety Stock Pada Stockpile 4 PT. Bukit Asam TBK, Tanjung Enim, Sumatera Selatan Sarah Shania Ulfa Andisya; Tri Gamela Saldy
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.v6i3.116287

Abstract

PT. Bukit Asam Tbk has a stockpile, one of which is in the OPB 4 area which is located in West Banko, Tanjung Enim, South Sumatra. stockpile data in May the percentage of load in in stockpile 4 has an achievement value of 77% and an achievement value of 83% load out in TLS 4. The final stock in the books on May 29, 2021 is 18,987.90 tons, but based on the measurement results of the final stock survey data is 793.85 tons. This thin stock affects the filling time of coal to trains in TLS 4 which can cause losses to the company if it experiences a long waiting time. Therefore, safety stock is needed as a safety stock if the stock is thin. Based on the results of research and analysis conducted at the research location which resulted in productivity and frequency of obstacles in the OPB 4 area, the productivity value of CHF 4 was 57.8% while in TLS 4 it was 54.9%. The average effective ultillize value for January 2021 - May 2021 is 56% for CHF 4 and 50% on TLS 4. The results obtained that the required safety stock value in the stockpile 4 area is 24,612,775 tons, with a stockpile management system that has a stockpile pattern at stockpile 4 is Chevron. Coal unloading system with FIFO (First In First Out) for the process of getting in and out of coal on the stockpile.

Page 46 of 61 | Total Record : 609

 44   45   46   47   48 

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