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Упит dcterms_subject_txt:surface mining

1229 items

  • Unvestments in Geological Exploration and Afectation on Mining Operating Cash Costs at Lignite Open Pits Kolubara (Lazarevac), Serbia

    Vuckovic Bogoljub, Dimitrijevic Bojan (2018)

  • Effectiveness Analysis of Different Bucket-wheel Excavators

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić (2021)
    Coal production in open-pit lignite mines in the Republic of Serbia is performed with continuous work systems. In addition to coal production, the same systems are used for the exploitation of large quantities of overburden. According to the reliability concept, continuous systems are in linear connection. If the failure occurs in one part of the system, that will produce a downtime of the entire system. The initial and most important factor of continuous systems is the bucket-wheel excavator. It ...
    bucket-wheel excavator, open-pit coal mine, mining, multi-criteria decision methods

  • Minimization of business risks in mining companies through loaders-truck equipment selection

    Popović Milena, Kuzmanović Marija, Vujošević Mirko, Milutinović Aleksandar (2013)

  • Evaluation of the external risks in the coal mining company Kostolac

    Kuzmanović Marija, Milutinović Aleksandar, Vujošević Mirko, Panić Biljana (2013)

  • The Effect of Groundwater on the Mining Mechanization at the Open Pit Mine Coal Drmno in Serbia

    Milanović Radomir, Polomčić Dušan, Dimitrijević Bojan, Pešić Miodrag (2015)

  • Optimisation the final countur of the open pit North mining district using the software package Whittle

    Kržanović Daniel, Stevanović Dejan, Rajković Radmilo, Jovanović Milenko, Žikić Miodrag, Stojadinović Saša (2016)

  • Risk-based Regional Scale Screening of Groundwater Contamination from Abandoned Mining Sites in Serbia - Initial Results

    Atanacković Nebojša, Dragišić Veselin, Živanović Vladimir, Stojković Jana, Gardijan Sunčica (2016)

  • The mine ore from Prlovi-2 locality preliminary flotation tests

    Lazić Predrag, Tomanec Rudolf, Kostović Milena, Miković Branislav (2011)

  • Optimal dynamic management of exploitation life of the mining machinery: models with undefined interval

    Vujić Slobodan, Miljanović Igor, Maksimović Svetozar, Milutinović Aleksandar, Benović Tomo, Hudej Marijan, Dimitrijević Bojan, Čebašek Vladimir, Gajić Grozdana (2010)

  • Internal structure of Supragetic basement (Serbian Carpatians, eastern Serbia) and its significance for late Early Cretaceous nappe-stacking

    Krstekanić Nemanja, Stojadinović Uroš, Kostić Bojan, Toljić Marinko (2017)

  • Model upravljanja investicionim projektima otvaranja površinskih kopova uglja

    Cvjetko P. Stojanović (2015-04-27)
    Brze promene u okruženju pred rukovodioce postavljaju mnogobrojne zahteve,pre svega, one koji se tiču ostvarenja ciljeva u zadatom vremenu i raspoloživimsredstvima što zahteva fleksibilan pristup u organizovanju aktivnosti i efikasnost unjihovom sprovođenju.Upravljanje projektima, bilo koje vrste, suštinski, predstavlja veoma složenproces odlučivanja uslovljen velikim brojem ulaznih faktora. Ti faktori treba daomoguće fokusiranje na prioritete i ciljeve, praćenje realizacije, fleksibilnost uprevazilaženju teškoća, prilagođavanje promenama, te kontrolu nad ostvarenimrezultatima. Ovakav način upravljanja zahteva korišćenje proverenih tehnika i alata tetimski rad angažovanih na ...
    Projekat, upravljanje, metodologija, površinska eksploatacija, model

  • Projection of SO2 emissions in coal power plants in Serbia

    Aleksandar Madžarević, Predrag Jovančić, Stevan Đenadić, Filip Miletić, Miodrag Ristović, Miroslav Crnogorac (2023)
    The production of electricity in the countries of South-Eastern Europe (SEE) was mainly related to the use of coal, predominantly lignite. The total installed capacity of thermal power plants using coal in these seven countries is 17.813 MW, distributed in 31 thermoblocks. The mentioned plants are the dominant pollutant emitters in all observed countries. Data on the largest emitters in the countries of the European Union and a comparison with SEE countries were collected. The calculation of emissions of ...
    енергeтика, емисије, СО2, угаљ, електране
    ... with the emitters from EU countries with a special Jocus on SEE countries. The projections of future SOx emissions from new wells in parts of surface mining intended Jor exploitation was given. Keywords: energy, emissions, SO», coal, power plants 1. INTRODUCTION Reducing emissions of pollutants ...
    ... University of Belgrade, Faculty of Mining and Geology, Belgrade, SERBIA, E-mail: aleksandar.madzarevic(orgf.bg.ac.rs ! University of Belgrade, Faculty of Mining and Geology, Belgrade, SERBIA, E-mail: predrag.jovancicOrgf.bg.ac.rs ! University of Belgrade, Faculty of Mining and Geology, Belgrade, SERBIA ...
    ... repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs O International Conference MINING AND ENVIRONMENTAL PROTECTION May 2023, Serbia ...

  • The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers

    Dragan Ignjatović, Predrag Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović (2019)
    One of the most important prerequisites for the successful operation of the open-cast lignite mine is to carry out all the auxiliary works timely with the necessary quality. The most important and most commonly used auxiliary machines are bulldozers. Engaging time of bulldozers use is in direct relation with the coefficients of the time and capacity utilization of the continuous system for the excavation of coal and tailings, which indicates their importance. More than 100 bulldozers have been hired ...
    open-cast coal mine, auxiliary works, bulldozers, optimization, availability
    ... overburden and coal systems on open pit mines of EPS (in Serbian) (2018) Study, Faculty of Mining and Geology, Belgrade 2. Jovantié, P. Maintenance of mining machines (in Serbian), University of Belgrade — Faculty of Mining and Geology, Belgrade, 2014. 3. Gransberg, D.D.; O’Connor, E.P. Major Equipment Life-cycle ...
    ... repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 7% International Symposium MINING AND ENVIRONMENTAL PROTECTION 25 - 28 September ...
    ... Predrag Jovančić!, Stevan Đenadić!, Ivan Janković?, Ivica Ristović! !- University ог Belgrade – Faculty ог Mining and Geology, Belgrade, SERBIA, dragan.ignjatovic(q)rgf.bg.ac.rs; 2 Ministry of Mining and Energy ог ће Republic ог Serbia, Belgrade, SERBIA 4bstract: Опе of the most important prerequisites ...

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... of Belgrade, Faculty of Mining and Geology, {ranka|ivano|olja|lily}@rgf.bg.ac.rs Abstract: At the University of Belgrade Faculty of Mining and Geology a terminological resource dubbed RudOnto is being developed, with the aim of becoming the reference resource for mining terminology in Serbian in ...
    ... of Belgrade Faculty of Mining and Geology (FMG) embarked on the task of developing RudOnto, a complex terminological resource aimed at gradually becoming the reference resource for mining terminology in Serbian in e-format. RudOnto is presently implemented within a mining engineering information ...
    ... included in the blended learning approach at the Faculty of Mining and Geology through an export of its subsets to the Moodle e-learning environment. This paper gives an outline of RudOnto, details about Moodle implementation on the Faculty of Mining and Geology, and describes the mechanism for generating ...

  • Cutting elements of bucket wheel excavators in lignite opensast mines: Methodology and performed solutions

    Dragan Novaković, Predrag Jovančić (2016)
    Bucket and cutting elements geometry (teeth and hardened steel) have very powerful impact on effective operation of bucket wheel excavator, and that`s why, problems of optimal geometry of elements in specific conditions always are of special interest in mining science and technique. If we want to achieve satisfactory utilization of bucket wheel excavator, it is necessary to modulate geometry material characteristics and technological parameters, as regards bucket wheel excavator work regime, and bucket wheel working performances, and also bucket ...

  • Uticaj geološke neizvesnosti u razvoju rudarskih projekata

    Petar Marković, Dejan Stevanović, Mirjana Banković (2023)
    Rudarstvo je industrija koja se nosi sa različitim vrstama neizvesnosti i rizika zbog svoje prirode i specifičnosti. Neizvesnost u rudarstvu može poticati iz različitih izvora i uticati na različite aspekte rudarskih projekata. Kao jedan od dominantnih faktora, ističe se geološka neizvesnost. Geološka neizvesnost igra ključnu ulogu u rudarstvu i može značajno uticati na procenu resursa i rezervi, planiranje eksploatacije, ekonomsku isplativost i upravljanje rizicima. Ova neizvesnost se ne može eliminisati, ali se uz primenu adekvatnih standarda i zakona može ...
    ... neizvesnost, rizik, optimizacija kopa, planiranje Abstract Mining is an industry that deals with different types of risks due to its nature and specificity. Uncertainty in mining can come from different sources and affect different aspects of mining projects. Geological uncertainty stands out as one of ...
    ... development of mining projects Petar Marković, Dejan Stevanović, Mirjana Banković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Uticaj geološke neizvesnosti u razvoju rudarskih projekata;Impact of geological uncertainty in the development of mining projects | ...
    ... deposits: Integrating joint multi-element geological uncertainty. Journal of Mining Science , 49, 68-81. [4] (2014). CIM Definition Standards For Mineral Resources and Mineral Reserves. Canadian Institute of Mining, Metallurgy and Petroleum. [5] Dimitrakopoulos R. (2018). Advances in Applied ...

  • Optimal dynamic management of exploitation life of the mining machinery: models with limited interval

    Vujić Slobodan, Miljanović Igor, Boševski Stefko, Kasaš Karolj, Milutinović Aleksandar, Gojković Nebojša, Josipović Pejović Milena, Dimitrijević Bojan, Gajić Grozdana, Čebašek Vladimir (2010)

  • Развој алгоритма процене ефеката ризика рада рударских машина на бази фази алгебре

    Dejan V. Petrović (2014-12-30)
    Појава изненадних отказа елемената техничких система у рударству је свакодневна појава...
    ризик, поузданост, технички систем, рударске машине, отказ, фази скупови, фази логика

  • Design of the Opencast Coal Mine Drmno Dewatering System

    Vladimir Pavlović, Dušan Polomčić, Tomislav Šubaranović (2014)
    Development of mining in the opencast mine Drmno from Kostolac basin in Serbia is carried out in the increasingly complex geological and hydro geological conditions with the decline of the coal seams to the alluvial part of Europe's largest river Danube. Greater depth and inflow of groundwater significantly increase costs for dewatering facilities construction with the requirement for optimizing of this more and more important surface mining process. Making decision on screen construction in the opencast mine with redesign ...
    dewatering system, groundwater, hydrodynamic model, dewatering wells, screen, reliability, environmental effects.

  • Failure Estimation of the Majdanpek Open Pit East Face Based on Inverse Velocity Model

    Miloš Marjanović, Stefan Milanović, Nikola Simić, Lazar Kričak (2024)
    The Majdanpek open pit mine south district is currently active mining prospect of copper ore exploitation in eastern Serbia. Its depth is approaching the termination depth and occurrences of large-scale instabilities and global instability of the final pit slope is possible. These can generate catastrophic mass movement inside an area that encloses a regional road route and the Pek River bed which is channelled along the outer contour of the pit. The displacements that were noted in early 2023, in the ...
    displacement, survey, inverse velocity, open pit