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INDONESIA
PROMINE
Published by Universitas Bangka Belitung
ISSN : 23547316     EISSN : 26207737     DOI : -
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Engineering Environmental Science
Jurnal ilmiah dengan nama Promine merupakan terbitan berkala ilmiah Jurusan Teknik Pertambangan Universitas Bangka Belitung yang terbit setiap bulan Juni dan Desember dalam setahun yang meliputi bidang Eksplorasi (Geologi dan Geofisika), Geoteknik/Geomekanika, Pengolahan Minerba, Reklamasi, dan Pasca Tambang.
Arjuna Subject : -
Articles 133 Documents
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Analisis Balik Stabilitas Lereng Disposal IPD (In Pit Dump) Utama Seam C pada area Pit B Selatan PT. Mifa Bersaudara, Aceh Lazuardi, Fikram Khaykal
PROMINE Vol 13 No 1 (2025): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/6h2j4y38

Abstract

On the slopes of IPD Utama Seam C, the results of the data that have been validated through the SPT method approach show the results of FK = 4,388, this does not meet the requirements for back analysis. The results of the back analysis data show that the value of FK = 0.968 with changes in embankment material properties such as unit weight, friction angle, and cohesion which are very significant, this has a big influence on the slope safety factor, the biggest change is in the change in cohesion. The results of the evaluation data are based on entering the parameters of the back analysis using geometry after the landslide, and show the FK value = 1.018.
Analisis Manajemen Operasional Alat Pemecah Batu Pada Unit Pengolahan Batu Andesit di PT Calvary Abadi Klaten Jawa Tengah Mokodompis, Oktavian
PROMINE Vol 13 No 1 (2025): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/q3815p03

Abstract

Calvary Abadi is located in Somopuro Village, Jogonalan District, Klaten Regency. Crushing activity in andesite stone crusher units consists of three stages, namely primary crushing (jaw crusher I), secondary crushing (jaw crusher II) and tertiary crushing (jaw crusher III). Currently the crushing plant is only capable of producing broken andesite stones of 166,939 tons / day with a size (10-20) mm of 54,243 tons / day, (20-30) mm of 7,924 tons / day and (5-10) mm of 34,771 ton / day. And the calculation of production in April and May 2016 resulted in an average production of only 1,335.504 tons / month. Based on production scheduling, the production target set is 250 tons / day or 2500 tons / month with the desired material size, namely (10-20) mm of 85.0 tons / day, (20-30) mm of 85 , 0 tons / day and (5-10) mm by 80.0 tons / day. To achieve the desired production target, it is necessary to have a good and correct tool maintenance management by always optimizing every scheduled maintenance systematics. Systematics maintenance of the first tool is preventive maintenance. PT. Calvary Abadi is carried out by applying three systematic procedures for maintenance, namely pre-maintenance, daily maintenance and periodic maintenance and emergency maintenance. The systematic review of maintenance on prevention based on the calculation of the unresolved preventive maintenance analytical method is 7.14%, so that it is still categorized as safe because less than 10% of the maximum inspection is not resolved. And corrective maintenance based on calculation analysis is said to be stable because it is more than 80%, ie the percentage of capability is 89.3%.
Analisis Geometri Jalan Angkut Tambang Pada Aktivitas Pertambangan Batubara di PT. Haswi Kencana Indah, Kabupaten Tebo, Provinsi Jambi. Assidiqi, Afwan
PROMINE Vol 13 No 1 (2025): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/xeepj431

Abstract

The coal transportation process is carried out from the mining site to the stockpile as far as ± 40 km so that the coal haul road has an important role in supporting the productivity of coal transportation activities at PT Haswi Kencana Indah. The coal transportation production plan is 32,929.0833 tons / month, but the actual condition of coal transportation is 25,000 tons / month so that the production target is not achieved. The purpose of this research is to improve the geometry of the haul roads of PT Haswi Kencana Indah. The method used in this research is observation and data analysis with calculations. The road width conditions that do not meet the standards are the actual straight road widths for the D-E, F-G, I-J and K-L segments, while the curved road widths are the C-D, E-F and H-I segments. The improvements made were changes in the width of the straight road to 8.75 meters, at a bend of 15.706 m, making a cross slope of 35 cm, making a super elevation with a height difference between the right and left sides of the road by 21 cm to 97.6 cm and carrying out road maintenance so that coal productivity increases.

Page 14 of 14 | Total Record : 133

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