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INDONESIA
INDONESIAN MINING PROFESSIONALS JOURNAL
Published by Perhimpunan Ahli Pertambangan Indonesia
ISSN : 27148823     EISSN : 27159035     DOI : https://doi.org/10.36986/impj.v1i1.6
Core Subject : Engineering,
Aerospace Engineering
This Journal is published periodically two times annually : April and October, containing papers of research and development for mineral and coal, including Mining Exploration, Surface Mine System and Operation, Underground Mine System and Operation, Geotechnical, Mine Safety and Mine Environment, Mine Management, Mine Ventilation, Mineral and Coal Economics, Coal and Mineral Processing and Smelting, Metallurgy, Coal and Mineral Trading, Mining Law and Policy, Mining CSR and Community Development, and Technology and Innovation in Mining. The editors only accept relevant papers with the substance of this publication.
Arjuna Subject : Energi (semua kategori) - Energi (Lain-Lain)
Articles 64 Documents
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RANCANGAN GEOMETRI SALURAN TERBUKA DENGAN VALIDASI PEMODELAN GENANGAN SOFTWARE HEC – RAS Bimantoro, Adyaksa Bagas; Cahyadi, Tedy Agung; Rosadi, Peter Eka; Nusanto, Gunawan; Ratminah, Wawong Dwi; Riyadi, Achmad
Indonesian Mining Professionals Journal Vol 6, No 1 (2024): April
Publisher : PERHAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36986/impj.v6i1.105

Abstract

Open channels are a medium for collecting and channeling water to keep the mining area dry. Often there are design changes in open channel designs to suit the field, causing more time and costs. Therefore, validation is needed that can simulate the calculated open channel design before actual application. Hydrologic Engineering Center – River Analysis System (HEC-RAS) is software for simulating inundation in open channel designs to convey water before it is actually applied. The initial method used is determining the planned rainfall using the gumbell method and determining the rain catchment area (DTH) to obtain runoff discharge. The runoff discharge with three DTHs as follows, DTH I = 6.47 m3/sec, DTH II = 7.38 m3/sec, and DTH III = 10.67 m3/sec is the data to obtain open channel geometry using the Manning formula. The results of the open channel geometric design will become input data for HEC-RAS in modeling open channel inundation to validate the suitability of the design results before applying them to the field.
PERUBAHAN PERILAKU PENGEMUDI DENGAN PENERAPAN TEKNOLOGI PEMANTAUAN KENDARAAN – STUDI KASUS PT FREEPORT INDONESIA Widijanto, Eman; Runtuwene, Hanny; Periyadi, Periyadi; Kumendong, Ferry; Azizi, Masagus Ahmad
Indonesian Mining Professionals Journal Vol 6, No 1 (2024): April
Publisher : PERHAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36986/impj.v6i1.140

Abstract

PT Freeport Indonesia (PTFI) adalah perusahaan pertambangan yang beroperasi di daerah terpencil Pegunungan Jayawijaya Papua, dan berjarak sekitar 3.500 km sebelah timur Jakarta, Indonesia.Cakupan area operasi penambangan yang terbentang dari dataran tinggi hingga dataran rendah berkaitan erat dengan kondisi jalan dan perubahan cuaca yang ekstrim. Selain tantangan alam tersebut, perilaku pengemudi kendaraan ringan yang tidak aman juga menjadi salah satu faktor penyumbang yang signifikan terhadap risiko terjadinya kecelakaan kendaraan ringan. Penerapan program teknologi pemantauan kendaraan ringan merupakan salah satu program keselamatan kerja di PTFI dengan tujuan untuk meningkatkan kesadaran berkendaraan sekaligus mendorong perubahan perilaku yang aman. Tulisan ini menjelaskan latar belakang, penerapan, tantangan yang dihadapi, hasil, dan potensi perbaikan di masa mendatang dari program ini untuk memastikan keselamatan pekerja di daerah operasi PTFI.
A MODIFICATION LIMIT EQUILIBRUM SOLUTION FOR MINE BACKFILL ANALYSIS IN SEMI CUBE STOPE Kahfi, Ashabul; Oktaviani, Revia; Devy, Shalaho Dina
Indonesian Mining Professionals Journal Vol 6, No 1 (2024): April
Publisher : PERHAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36986/impj.v6i1.90

Abstract

Mine backfill is a material that is used to fill the empty stope in an underground mine for ground control stability and to reduce ore dilution. Generally, the backfill consists of mining waste materials and ore tailings, which are added to a binder such as cement. Problems that often appear in the mining cycle using stope and backfill are the stability of the backfill on the primary stope when exposing the secondary stope. Previous researchers suggested analyzing the stability of the backfill on the narrow stope. In some cases, a semi-cube stope is often found. Obviously, the potential failure dimension, which acts as the driving force of the backfill in the semi-cube stope, is smaller than the narrow stope. This study was meant to develop a method for analyzing the stability of the backfill on the semi-cube stope by calculating the driving force according to the failure potential dimensions that could potentially occur and simulating it with numerical modeling using FEM.
EVALUASI ANALISIS GEOTEKNIK PADA TAMBANG TERBUKA BATUBARA PIT NORTH WEST PT ANAK TAMBANG INDONESIA JOB SITE PT ADIMITRA BARATAMA NUSANTARA, KALIMANTAN TIMUR Parissing, Vinsentia; Hariyadi, Sundek; Saptono, Singgih; Dwinagara, Barlian
Indonesian Mining Professionals Journal Vol 6, No 1 (2024): April
Publisher : PERHAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36986/impj.v6i1.128

Abstract

On a mine slope there will be a driving force and a resisting force. The mine slope will collapse if the driving force is greater than the resisting force. Thus, the principle of mitigating mine slope failure is to reduce the driving force or increase the resisting force. PT Adimitra Baratama Nusantara intends to develop a new mining area in the North-West area within the IUP area. Therefore, it is necessary to carry out a geotechnical study that focuses on slope stability analysis to support open-pit coal mining plans based on data from geotechnical investigations in the field, secondary data and geotechnical laboratory test data. Geotechnical modeling for slope stability analysis was carried out using the Finite Element Method because the overburden and interburden sedimentary rocks of coal seams are considered to have behavior approaching elasto-plastic, so that it will provide results that are close to the actual situation in the field. Modeling and slope stability analysis of the mine opening design represented by section-01 and section-03 with the height of each opening being 126 m and 119 m shows that the high-wall and low-wall slope designs are not yet stable, so a re-design is necessary. with the mine opening floor simulated at level -110 and level -90.

Page 7 of 7 | Total Record : 64

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