259 items

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

  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

  Dragan Ignjatović, Predrag Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović. "The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers" in 7th International Symposium Mining and Environmental Protection, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2019)

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  Concept od predictive hydrodynamic calculations: An overview of the case studies from Serbia cite

  Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Vesna Ristić Vakanjac, Marina Čokorilo Ilić (2019)

  groundwater management, hydrodynamic model, multiple-criteria decision making, open cast mine, groundwater source.0

  Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Vesna Ristić Vakanjac, Marina Čokorilo Ilić. "Concept od predictive hydrodynamic calculations: An overview of the case studies from Serbia" in National Conference with international participation “Geosciences 2019”, Bulgaria, 2019, Sofia : Bulgarian Geological Society (2019)

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  Multi-Criteria Fuzzy-Stochastic Diffusion Model of Groundwater Control System Selection cite

  Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić, Miloš Gligorić, Milanka Negovanović (2019)

  When considering data and parameters in hydrogeology, there are often questions of uncertainty, vagueness, and imprecision in terms of the quantity of spatial distribution. To overcome such problems, certain data may be subjectively expressed in the form of expert judgment, whereby a heuristic approach and the use of fuzzy logic are required. In this way, decision-making criteria relating to an optimal groundwater control system do not always have a numerical value. Groundwater control scenarios (alternatives) are identified through hydrodynamic ...

  expert judgment, linguistic variables, fuzzy dynamic TOPSIS, hydrogeology, groundwater control system, open-cast mine, geometric Brownian motion

  Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić, Miloš Gligorić, Milanka Negovanović. "Multi-Criteria Fuzzy-Stochastic Diffusion Model of Groundwater Control System Selection" in Symmetry, MDPI AG (2019). https://doi.org/10.3390/sym11050705

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  Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja cite

  Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković (2019)

  Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...

  višekriterijumske metode, površinski kop uglja, pomoćna mehanizacija, hidraulični bager

  Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković. "Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/tehnika1903369D

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  History of the development of the hydrodynamic model of the open pit mine “Drmno”, Serbia cite

  Dušan Polomčić, Jelena Ratković, Vesan Ristić Vakanjac (2023)

  With the creation of a hydrodynamic model, the need for it usually ceases until some next moment when the model needs to be updated and used for the set task for the necessary project documentation or dedicated studies. It is relatively rare that almost every year the model is improved and used for forecast calculations. The paper presents the basic characteristics and development of the hydrodynamic model of the open pit mine “Drmno” for 25 years. This open pit ...

  hydrodynamic model, open pit mine, model recalibration, drainage system

  Dušan Polomčić, Jelena Ratković, Vesan Ristić Vakanjac. "History of the development of the hydrodynamic model of the open pit mine “Drmno”, Serbia" in National Conference with International Participation “GEOSCIENCES 2023”, Review of the Bulgarian Geological Society , Sofia : Bulgarian Geological Society (2023)

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  History of the development of the hydrodynamic model of the open pit mine “Drmno”, Serbia cite

  Dušan Polomčić, Jelena Ratković, Vesna Ristić Vakanjac (2023)

  With the creation of a hydrodynamic model, the need for it usually ceases until some next moment when the model needs to be updated and used for the set task for the necessary project documentation or dedicated studies. It is relatively rare that almost every year the model is improved and used for forecast calculations. The paper presents the basic characteristics and development of the hydrodynamic model of the open pit mine “Drmno” for 25 years. This open pit ...

  hidrodinamički model, površinski kop, rekalibracioni model, drenažni sistem

  Dušan Polomčić, Jelena Ratković, Vesna Ristić Vakanjac. "History of the development of the hydrodynamic model of the open pit mine “Drmno”, Serbia" in Review of the Bulgarian Geological Society, Bulgarian Geological Society (2023). https://doi.org/10.52215/rev.bgs.2023.84.3.307

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  Effectiveness Analysis of Different Bucket-wheel Excavators cite

  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

  Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić. "Effectiveness Analysis of Different Bucket-wheel Excavators" in 8th International Conference Mining and Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)

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  Analiza geomehaničke stabilnosti kosina na odlagalištima i površinskom kopu Ćeramide cite

  Tomislav Šubaranović, Vladimir Čebašek, Bojan Dimitrijević, Veljko Rupar (2022)

  Kako bi se nastavila eksploatacija dacita na površinskom kopu Ćeramide kod Rudnika, potrebno je izraditi novu projektnu dokumentaciju na osnovu novih overenih rezervi. Da bi se eksploatacija jalovine i dacita odvijala sigurno bez klizanja i obrušavanja stenskog materijala, neophodno je izvršiti proveru stabilnosti projektovanih kosina i na odlagalištima i na samom površinskom kopu. U ovom radu je upravo data analiza geomehaničke stabilnosti kosina na odlagalištima i površinskom kopu dacite Ćeramide kod Rudnika.

  površinski kop, Ćeramide, stabilnost kosina, dacit, Rudnik

  Tomislav Šubaranović, Vladimir Čebašek, Bojan Dimitrijević, Veljko Rupar. "Analiza geomehaničke stabilnosti kosina na odlagalištima i površinskom kopu Ćeramide" in XV Međunarodna konferencija OMC 2022, Zlatibor, 12-15. oktobar 2022., Jugoslovenski komitet za površinsku eksploataciju (2022)

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

  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

  Miloš Marjanović, Stefan Milanović, Nikola Simić, Lazar Kričak. "Failure Estimation of the Majdanpek Open Pit East Face Based on Inverse Velocity Model" in Regional Symposium on Landslides in the Adriatic-Balkan Region, Belgrade, 15-18th May 2024, University of Belgrade, Faculty of Mining and Geology (2024). https://doi.org/10.18485/resylab.2024.6.ch46

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  Стабилизација косине приступног пута површинског копа ћерамиде cite

  Владимир Чебашек, Вељко Рупар, Јелена Мајсторовић Нецковић, Драгана Нишић, Урош Пантелић (2024)

  У југоисточном делу површинског копа Ћерамиде дошло је до формирања клизног тела у косини насипа приступног пута. Клизно тело се привремено стабилизовало и исто се врло брзо може променити услед повећаних количина падавина и инфилтрације веће количине воде у тело косине чиме би се драстично изменила физичко-механичка својства стенског материјала у телу насипа пута и стенског масива у залеђини косине. Геомеханички услови санације клизишта у телу косине приступног пута су анализирани на основу могућности измене геометрије косине формирањем насипа ...

  габион, префабриковани бетонски елеменати, потпорни зид, косина, површински коп

  Владимир Чебашек, Вељко Рупар, Јелена Мајсторовић Нецковић, Драгана Нишић, Урош Пантелић. "Стабилизација косине приступног пута површинског копа ћерамиде" in XVI међународна конференција ОМЦ 2024, Златибор, 9-12. октобар 2024. , Југословенски комитет за површинску експлоатацију (2024)

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  A Correlation Relating the Residual Strength Parameters to the Proportions of Clay Fractions and Plasticity Characteristics of Overburden Sediments from the Open-Pit Mine Drmno cite

  Stevan Ćorluka, Dragoslav Rakić, Nikola Živanović, Ksenija Đoković, Tina Đurić (2024)

  Jedan od preduslova za bezbedno obavljanje eksploatacije na površinskim kopovima, jeste stabilnost završnih i radnih kosina kopa. Da bi se ovo obezbedilo potrebno je izvršiti detaljna terenska i laboratorijska geomehanička ispitivanja tla i na osnovu dobijenih rezultata uraditi proračune vezane za analize stabilnosti. Ovako dobijeni rezultati koriste se za dimenzionisanje nagiba eksplotacionih kosina (iskopa), odnosno kosina formiranih usled odlaganja jalovine. Klizišta nastaju kada je dostignuta granična čvrstoća smicanja i zato je adekvatno definisanje parametara čvrstoće na smicanje, jedan ...

  rezidualna čvrstoća smicanja tla, aparat za kružno smicanje, aparat za direktno smicanje

  Stevan Ćorluka, Dragoslav Rakić, Nikola Živanović, Ksenija Đoković, Tina Đurić. "A Correlation Relating the Residual Strength Parameters to the Proportions of Clay Fractions and Plasticity Characteristics of Overburden Sediments from the Open-Pit Mine Drmno" in Applied Sciences, MDPI AG (2024). https://doi.org/10.3390/app142210325

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  Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining cite

  Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)

  Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi

  Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović . "Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining" in Energies, MDPI (2019). https://doi.org/https://doi.org/10.3390/en12122245

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  Optimizacija i planiranje površinskih kopova stohastičkim modelima cite

  Dejan R. Stevanović (2015-05-29)

  Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...

  površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.

  Dejan R. Stevanović. "Optimizacija i planiranje površinskih kopova stohastičkim modelima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-05-29)

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  Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines cite

  Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković (2021)

  The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...

  In Pit Crushing and Conveying, IPCC, open pit mining, haulage, optimization, costs saving

  Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković. "Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines" in 8th International Conference MIining And Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)

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  Microorganism activity in mine soils of black locust (Robinia pseudoacacia L.) stands on copper mine wastes in Bor, Serbia cite

  Ranđelović Dragana (2017)

  Ranđelović Dragana. "Microorganism activity in mine soils of black locust (Robinia pseudoacacia L.) stands on copper mine wastes in Bor, Serbia" in Proceedings of XXV International Conference on Ecological Truth, :Univerzitet u Beogradu, Tehnički fakultet u Boru (2017): 207-213

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  Characterization of mine soils formed on loose sediments from the copper mine overburden in Bor, Serbia cite

  Ranđelović Dragana, Vulić Predrag, Cvetković Vladica (2014)

  Ranđelović Dragana, Vulić Predrag, Cvetković Vladica. "Characterization of mine soils formed on loose sediments from the copper mine overburden in Bor, Serbia" in Изводи радова / XXI Конференција Српског кристалографског друштва, Ужице, 2014., Београд:Српско кристалографско друштво (2014): 54-54

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  Simulation of mine water inflow: case study of the Štavalj coal mine (southwestern Serbia) cite

  Miladinović Branko, Ristić-Vakanjac Vesna, Bukumirović Dragomir, Dragišić Veselin, Vakanjac Boris (2015)

  Miladinović Branko, Ristić-Vakanjac Vesna, Bukumirović Dragomir, Dragišić Veselin, Vakanjac Boris. "Simulation of mine water inflow: case study of the Štavalj coal mine (southwestern Serbia)" in Archives of Mining Sciences, Polish Academy of Sciences, Committee of Mining 60 no. 4 (2015): 255-269. https://doi.org/10.1515/amsc-2015-0063

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  Opencast Mine Field B Inner Dump Sanation as A Condition of Mine Field E Opening in RB Kolubara cite

  Branko Petrović, Jelena Majstorović, Tomislav Šubaranović (2021)

  Branko Petrović, Jelena Majstorović, Tomislav Šubaranović. "Opencast Mine Field B Inner Dump Sanation as A Condition of Mine Field E Opening in RB Kolubara" in 10th International Conference Coal 2021, Jugoslovenski komitet za površinsku eksploataciju (2021)

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  Multi-Attribute Scenario Analysis of Protection of Drmno Open Pit Mine against Groundwater cite

  Томислав Шубарановић, Слободан Вујић, Милинко Радосављевић, Бојан Димитријевић, Саша Илућ, Драгица Јагодић Крунић (2019)

  вишекритеријумска анализа, површински коп Дрмно, заштита рудника од одводњавања

  Томислав Шубарановић, Слободан Вујић, Милинко Радосављевић, Бојан Димитријевић, Саша Илућ, Драгица Јагодић Крунић. "Multi-Attribute Scenario Analysis of Protection of Drmno Open Pit Mine against Groundwater" in Journal of Mining Science, Pleiades Publishing Ltd (2019). https://doi.org/10.1134/S1062739119025564

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  A transient three-dimensional numerical model of water impermeable screen effects on the groundwater inflow reduction into the mine (Case Study: Open pit mine Drmno, Serbia) cite

  Šubaranović Tomislav, Polomčić Dušan, Pavlović Vladimir, Pakić N (2011)

  Šubaranović Tomislav, Polomčić Dušan, Pavlović Vladimir, Pakić N. "A transient three-dimensional numerical model of water impermeable screen effects on the groundwater inflow reduction into the mine (Case Study: Open pit mine Drmno, Serbia)" in Proceedings on CD-ROM [Elektronski izvor]. Vol. 1-2 / 11th International Conference Research and Development in Mechanical Industry - RaDMI 2011, 15-18. September 2011, Sokobanja, Serbia, Vrnjačka Banja:Scientific and Technical Center for Intellectual Property (2011): 1257-1265