cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Jurnal Mineral
Contact Email
mineral.ubb@ubb.ac.id
Phone
+6281373020110
Journal Mail Official
mineral.ubb@ubb.ac.id
Editorial Address
Gedung Dharma Pengabdian, Fakultas Teknik Universitas Bangka Belitung, Kampus Terpadu UBB, Balunijuk Provinsi Kepulauan Bangka Belitung
Location
Kab. bangka,
Kepulauan bangka belitung
INDONESIA
MINERAL
Published by Universitas Bangka Belitung
ISSN : 25407708     EISSN : 2620729X     DOI : https://doi.org/10.33019/mineral.v6i2
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology
The scientific journal called MINERAL is a scientific periodical publication of Mining Engineering Department , Bangka Belitung University, which is published every April and October in a year which the scope of Exploration (Geology and Geophysics), Geotechnical / Geomechanics, Minerba Processing, Minerba Management and Economics, Mining Environment, Reclamation and Post-Mining. This journal collaborates with Association of Indonesian Mining Professionals (PERHAPI) Center and Forum Komunikasi Program Studi Teknik Pertambangan se-Indonesia.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol 8 No 1 (2023): MINERAL" : 6 Documents clear
Analisis Uji Kuat Tekan Uniaksial Batupasir Pada Formasi Pamaluan, Kecamatan Longikis, Kabupaten Paser, Provinsi Kalimantan Timur Musodiq Musodiq; Tommy Trides; Shalaho Dina Devy; Revia Oktaviani; Albertus Juvensius Pontus
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.3921

Abstract

The uniaxial compressive strength test was carried out to determine the value of rock strength. This research was conducted on sandstones in the Pamaluan Formation. The tests carried out in this study were physical properties tests, compressive strength tests and grain size tests on sandstones with a total of 30 samples on the physical properties test, 10 samples on the mechanical test and 500 gram grain size test at each point, the purpose of which is to determine the effect of porosity on the compressive strength of rock. In testing the physical properties carried out, the lowest and highest porosity values ​​were 17.27 and 22.91%. The results of the compressive strength test with the lowest and highest values ​​were 3.05 and 7.63 MPa. The grain size test results at points 1 and 2 are the same, namely fine sandstones with a percentage of 45 and 44%. From the results of research that has been done the value of porosity and grain size is very influential on the compressive strength test.
Analisis Sifat Mekanik Batuan Terhadap Kemampugaruan Bulldozer Dan Kemampugalian Excavator Untuk Mencapai Target Produksi Overburden PT Berau Coal Rosihan Pebrianto; Edwin Harsiga; Marwan Asof; Muhammad Dimas Thabrani
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.4089

Abstract

The research was conducted at Pit Q, PT Berau Coal with the aim of determining the productivity parameters of bulldozer ripping, excavator productivity, and factors affecting ripping activities on sandstone. The results showed that the material in pit q was sandstone which had a ucs value of 6.26 Mpa and a seismic velocity of 1751.63 m/s so the crossripping method was used so that the material was dismantled smaller. Based on ripper productivity, the relationship between the depth of penetration of the shank ripper and the speed of the bulldozer is obtained, productivity of the excavator is smaller if the space used by the ripper increases, so that the size of the material produced will be larger and the digging time of the excavator will increase. The influence of ripper activities is the depth of penetration that affects the speed of the bulldozer, the use of ripping space affects the digging time performance of the excavator too. Factors of the performance of the ripper are trapped material, ripper tip wear, and operator skills.
Evaluasi Kemiringan Jalan Tambang Terhadap Cycle Time Alat Angkut Pada Dump Truck Hino FG 235 JJ Tambang Batu Granit Di PT Aditya Buana Inter Kabupaten Bangka Fitra Adreansyah; Franto Franto; E.P.S.B Taman Tono
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.4094

Abstract

PT ABI is a private company engaged in the granite mining business using the open pit method. The problem encountered is that there is a slope of the mine road that does not comply with the standards set by the company, namely ≤ 8%, the slope of the mine road, which is not suitable, makes the truck to produce large rimpull, which affects the overall distribution time. This study aims to evaluate and optimize the dump truck cycle time obtained. This research begins by calculating the actual travel time on 2 dump trucks in 40 trips, conveyance A gets 493.72 seconds and conveyance B is 495.75 seconds, the actual travel time on the haul road segment exceeds ≥ 8%, i.e. in the B-C segment which has a grade of 8.86% with an average travel time of 20.38 seconds and in the C-D segment which has a grade of 10.51% with an average travel time of 37.91 seconds. Obtained circulation time decreased by 5 seconds from 494.73 seconds to 489.69 seconds with a percentage increase of 1.04% after optimization, meaning that the conveyance can transport 89 tons more of material.
Studi Studi Pengaruh Tingkat Getaran Tanah (Ground Vibration) Akibat Peledakan Terhadap Bangunan sekitar Pit 13 HW Vandrianus Felix Feto Nuwa; Revia Oktaviani; Harjuni Hasan; Tommy Trides; Albertus Juvensius Pontus
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.4085

Abstract

PT. PAMA is a company engaged in mining and is a contractor of PT. Indominco Mandiri which has been running since 1996. The work contract given is blasting, from blasting activities many impacts arise, one of which is ground vibration, therefore it is necessary to measure the level of ground vibration in the west block area where there are several critical areas in the form of buildings such as offices , solar (fuel oil) storage, and PT. Indominco Mandiri, where there have been complaints regarding large vibrations and the potential for diesel spills from fuel oil. In the study the peak vector sum (pvs) value produced in December 2022 was 1.57 mm/s with the closest distance of 785 meters and in January 2023 4.21 mm/s with a distance of 500 meters. The maximum use of explosives item for explosive holes in December 2022 and January 2023 is 2,513 kg. This pvs value is still safe, because it is still below 5.0 mm/s and according to SNI 7572: 2010.
Kajian Teknis Pengolahan SHP menggunakan Shaking Table untuk Mengoptimalkan Kadar dan Recovery Sn di TB Batu Besi PT Timah Tbk Kristina Damayanti Panjaitan; Janiar Pitulima; Delita Ega Andini
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.4096

Abstract

PT Timah Tbk carried out the development by establishing TB Primer Batu Besi, East Belitung. The purpose of this study was to find out the variable setting of the shaking table in order to obtain optimal levels and recovery of Sn. The research method used is gravity concentration using a shaking table tool. The feed used is Remaining Processing Results from the primary shaking table. The experiment was carried out twice, the first experiment was carried out 27 times with a sample weight of ± 78 kg. Each experiment used 9 variations, namely the tilt of the shaking table (8°;8.5°;9°) and the stroke length (12mm, 14mm, 16mm). The second experiment used ±5 tons of material with the most optimal tool settings from the first experiment. The feed sample material and product shaking table were tested using the XRF and GCA tests. The analysis of the XRF test showed that the Sn content in the feed was 0.45%. GCA analysis shows that the associated minerals are cassiterite, ilmenite, monazite, pyrite, quartz, tourmaline, hematite and magnetite. The optimal setting for the operating variable of the shaking table is with a variation of the tilt of the shaking table 8° and a stroke length of 12 mm to obtain a concentrated Sn content of 8.04% and a concentrated Sn recovery of 20.75%. The second experiment obtained a total Sn recovery of 17.25%. If one additional SHP processing line is added to TB Batu Besi, the company's recovery will increase from ±15% to ±29.55%.
Analisis Fuel Ratio Pada Project Penambangan di Pit 1 PT Cahaya Riau Mandiri Jobsite PT Duta Alam Sumatera Yunita Yunita; Edwin Harsiga
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.4097

Abstract

This study analyzed the fuel ratio in mining projects to determine the factors that affected loose opportunity and the profit or losses encountered by the company. This analysis process was conduted by determining the target and realization of production where the overburden and coal getting production target in March on Fleet 1 was 68.885 bcm/month with the fuel consumption of 11.907,19 liter, on Fleet 2 was 70.944 tons/month with the fuel consumption of 11.460,38 liter, on Fleet 3 was 68.885 bcm/month with the fuel consumption of 9.611,94 liter, Fleet 4 was 68.885 bcm/month with the fuel consumption of 11.907,19 liter. Whereas, in the field the realization of overburden and coal getting production in march of Fleet 1 was 55.403,23 bcm/month, Fleet 2 was 51.907,52 tons/month, Fleet 3 was 18.259,34 bcm/month, Fleet 4 was 56.582,92 bcm/month. The planned fuel ratio on Fleet 1 was 0,17 liter/bcm, Fleet 2 was 0,16 liter/tons, Fleet 3 was 0,14 liter/bcm and Fleet 4 was 0,17 liter/bcm while the actual fuel ratio on Fleet 1 was 0,18 liter/bcm, Fleet 2 was 0,20 liter/tons, Fleet 3 was 0,16 liter/bcm, Fleet 4 was 0,18 liter/bcm and the fuel ratio difference on Fleet 1 was 0,01 liter/bcm, Fleet 2 was 0,04 liter/tons, Fleet 3 was 0,02 liter/bcm and Fleet 4 was 0,01 liter/bcm. The factors affecting the production loose opportunity from the tool working hour was breakdown, slippery, rain and wait other unit. The total cost spent by the company for the overall fuel consumption was Rp 428.989.792,00 while the overall loss was Rp 45.989.837,74 in March.

Page 1 of 1 | Total Record : 6

 1 

Filter by Year

2023 2023


Reset
Filter By Issues
All Issue Vol 10 No 2 (2025): MINERAL Vol 10 No 1 (2025): MINERAL Vol 9 No 2 (2024): MINERAL Vol 9 No 1 (2024): MINERAL Vol 8 No 2 (2023): MINERAL Vol 8 No 1 (2023): MINERAL Vol 7 No 2 (2022): MINERAL Vol 7 No 1 (2022): MINERAL Vol 6 No 2 (2021): MINERAL Vol 6 No 1 (2021): MINERAL Vol 5 No 2 (2020): MINERAL Vol 5 No 1 (2020): MINERAL Vol 4 No 2 (2019): MINERAL Vol 4 No 1 (2019): MINERAL Vol 3 No 2 (2018): MINERAL Vol 3 No 1 (2018): MINERAL Vol 2 No 2 (2017): MINERAL Vol 2 No 1 (2017): MINERAL Vol 1 No 1 (2016): Mineral More Issue