Претрага

Упит dcterms_subject_txt:open pit mine

471 items

  • A business intelligence approach to mine safety management

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić (2016)
    ... relations established between general and more specific terms, such as "coal mine", and "open pit", which is a specific type of coal mine, as well as synonyms relations, such as those between "opencast", "surface mine", and "quarry". One approach to development of mining ontologies has been reported ...
    ... intelligence approach to mine safety management Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] A business intelligence approach to mine safety management | ...
    ... 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 A Business Intelligence Approach to Mine Safety Management Ljiljana Kolonja1, Ranka Stanković1, Ivan Obradović1, ...

  • Testing the energy value of different types of coal by the method of active thermography

    Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Predrag Jovančić, Dragutin Jovković (2020)
    In this paper, coal thermograms are presented and analyzed in order to determine their energy value. Two types of coal of different categories, brown and lignite, were selected for active thermographic imaging. The tested coal samples were processed before measurement so that they are similar in dimensions and have two plane-parallel smooth surfaces. The test samples were "primarily" heated under the same conditions and the process of their cooling was monitored by a thermal camera. "Then" they were cooled ...
    Infrared imaging, nondestructive testing, active thermography, coal.

  • Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije

    Jelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar (2023)
    Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...
    mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacija

  • Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji

    Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković (2023)
    U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...
    površinska eksploatacija ugalja, lignit, Kolubara, Kostolac, Srbija

  • Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду

    главни и одговорни уредник Душан Поломчић (2016)
    Рударско-геолошки факултет
    ... Blast Effect Open Pit ,,Ranci’’ of Shock Waves on Constructed Facilities and Environment. 5th Balkan mining congress, Macedonia, Ohrid, pp. 135–149. TRAJKOVIĆ S., LUTOVAC S., RAVILIĆ M., 2013: Assessment of Impact on Environ- ment and Constructed Facilities Owing to Blasting at Open Pit Mine Nepričava ...
    ... effect open pit "Ranci" of shock waves on constructed facilities and environ- ment. 5th Balkan mining congress, Macedonia, Ohrid, 2013. pag. 135–149. TRAJKOVIĆ S., LUTOVAC S., RAVILIĆ M., 2013: Assessment of impact on environment and constructed facilities owing to blasting at open pit mine Nepričava ...
    ... at the „Drmno“ open pit mine, Coal Basin Kostolac. Journal of Mining Science, Vol. 44, No. 3, May-June 2008, 312–319. Doi: 10.1007/s10913-008-0022-1 VUJIĆ S., ZAJIĆ B., MILJANOVIĆ I., PETROVSKI A., 2008: GPS telemetry of energetic-technical and technological parameters at open pit mines. Journal ...

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... blasting cases. The methodology of modeling can be applied for the prediction of vibration from blasting in all open pit mines. Keywords: model, prediction of vibrations, blasting, open pit mine, Monte Carlo, fuzzy logic, regression analysis, FFT analysis, response spectra, crack displacement Scientific ...
    ... Janković, I., Zeković, D., Measurement and analysis of blast-induced vibrations in the open pit copper mine „Veliki Krivelj“ Bor, Proceedings of the XI National Conference with International Participation of the Open and Underwater Mining of Minerals, Scientific and Technical Union of mining, geology ...
    ... Engineering 27(2), 2007, 116-125. 27. Iphar, M., Yavuz, M., Ak, H., Prediction of ground vibrations resulting from the blasting operations in an open-pit mine by adaptive neuro-fuzzy inference system, Environmental Geology 56(1), 2008, 97-107. 28. Mohamed, M.T., Artificial neural network for prediction ...

  • Оптимизација управљања процесима рекултивације површинских копова угља

    Bojan S. Dimitrijević (2014-05-30)
    Ширење површинске експлоатације минералних сировина а нарочито енергетских ресурсафосилних горива, чине површинске копове угља просторно доминантним објектима великих рударскихбасена како у нас тако и у свету. Експлоатациона активност, прати негативне еколошке утицаје наживотну средину шире околине, што нас обавезује на интегрално планирање, ревитализацију,рекултивацију и уређење нарушеног простора за његово поновно хумано коришћење упостексплоатационом периоду. Постексплоатационо санирање и уређење предела површинских коповаи одлагалишта односно нарушеног простора изазваног рударским радовима и пратећих објеката,представља синтетички мултидисциплинарно-интердисциплинаран веома комплексан вишефазниинжењерски пројектни задатак.У уводном ...
    рекултивација, постексплоатациони предео, површински коп угља,вишеатрибутна анализа, одлучивање, процеси, рекултивационо решење
    ... the land reclamation planning process through all the phases of open pit mine development is made of three levels: preliminary, operative and final, and it can be applied to the new open pit mines as well as the operational open pit mines where it was not previously applied in detail. By means ...
    ... experimental research performed in three subject in our country and the region: 1. Open pit mine Klenovik - Kostolac Coal Mining Basin, 2. Tamnava West Field - Kolubara Coal Mining Basin in Serbia as well as 3. Open pit mine Bogutovo Selo at the Ugljevik Coal Basin in the Republic of Srpska (BIH). Experimental ...
    ... by selecting a certain number out of maximum of 20 alternative variations for each open pit mine separately, by using analogy in selecting the criteria. For the purpose of design solutions, i.e. the selected open pit mines as the research objects, PROMETHEE model was chosen. Without further analysis ...

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... to be excavated. 2. Coal Mining in Underwater Pit “Kovin” Exploration work in the coal and gravel deposit area began in 1976, while coal exploita- tion began in 1995. Coal is mined from the bottom of the lake connected to the Danube, and is the only mine with underwater coal exploitation in the world ...
    ... ERC 1400-30/7 high-capacity excavators from lignite quarries. IOP Conf. Ser. Mater. Sci. Eng. 2016, 161, 012081. [CrossRef] 5. Mine Planning and Equipment Selection. Mine Plan. Equip. Sel. 2014, 303–310. [CrossRef] 6. Jovančić, P.; Ignjatović, D.; Novaković, D. Optimisation of Coal Cutting Bits ...
    ... April 2021). 20. Marijanac, S.; Makar, N.; Jovanovic, B.; Stjepanovic, P. Maintaining the functionality of the coal settling basin at the underwater pit Kovin. Min. Met. Eng. Bor 2016, 1, 95–102. [CrossRef] 21. Zivotic, D.; Cvetković, O.; Vulić, P.; Gržetić, I.; Simić, V.; Ilijevic, K.; Dojčinović ...

  • A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers

    Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić (2019)
    Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...
    Efikasnost, Fazi zaključivanje, Prikupljanje podataka, Buldozer

  • Development of terminological resources for expert knowledge: a case study in mining

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić (2015)

  • Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala

    Srđan B. Stanković (2016-09-11)
    Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...
    jezero Robule, acidofilne bakterije, bioluženje, kisele rudničke vode, flotacijska jalovina
    ... (Streptophyta, Zygnematales) in lakes impacted by acidic precipitation, experimental acidification, and acid mine drainage in Geller W., Shultze M., Kleinmann R., Wolkersdorfer C. (editors): Acidic pit lakes: the legacy of coal and metal surface mines, Springer, Berlin: 159-172 60. Knežević-Vukčević ...
    ... This is important finding, since reduction of content of pyrite in tailings reduces its ability to generate acid mine drainage. Keywords: lake Robule, acidophilic bacteria, acid mine drainage, bioleaching, flotation tailings. Scientific field: geology Specific scientific field: g ...
    ... Evolutionary Microbiology 58, 2898-2903 18. Chunbo H., Lihua W., Yanan G., Lina Z., Hailiang D. (2010) Microbial diversity in acid mine drainage of Xiang Mountain sulfide mine (Anhui province, China), Extremophiles 14: 465-474 19. Conić V., Rajčić Vujasinović M., Trujić V., Cvetkovski V. (2014) Copper ...

  • Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac (2023)
    ... the Kovilovača open pit Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit | Suzana Lutovac ...
    ... e, if it is, by its structure, similar to the basic set [&8]. 199 6. REVIEW OF MASS BLASTING AT THE KOVILOVAČA OPEN PIT 6.1 General characteristics of the Kovilovača open pit Measurements are performed at the mass or stratified limestone |9]. The physical — mechanical characteristics of the ...
    ... dynamic elasticity modulus FE„ lin • „dynamic Poisson' ratio //„„ — 0.39|iGN/m2] . 6.2 Method of blasting in the open pit Kovilovača Measurements of seismic shocks in the open pit Kovilovača were performed during blasting, conducted for the purpose of deposit exploitation [9]. Two blasting operations ...

  • Stability analysis on slope PK dacite Ceramide

    Vladimir Čebašek, Veljko Rupar, Vladimir Ivoš, Vladimir Petković (2018)
    Safe surface mining exploitation of minerals is possibile only if stable bench and overall slopes in the open pit are construct. In order to to construct stable open pit slopes, it is necessary to carry out certain physical and mechanical laboratry testing of mineral raw materials in order to determine the geomechnical calculating parameters. These calculating parameters represent the base ground for performing slopes analyses and the open pit design. In this paper, an stability analysis of benches and ...
    dacite, slope stability, surface mining

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... research carried out in Majdanpek open pit, situated in northern part of east Serbia and, • Investigations carried out during mass blasting in Nepričava open pit, located in central Serbia. Minerals 2018, 8, 70 9 of 18 4.1. Experimental Investigation in Majdanpek Open Pit 4.1.1. General Characteristics ...
    ... the Equation (54)). Minerals 2018, 8, 70 13 of 18 4.2. Investigation during Mass Mining in Nepričava Open Pit 4.2.1. General Characteristics of Nepričava Open Pit The Nepričava open pit is a part of the municipality of Lajkovac. It is situated on the left bank of the Kolubara River in Central ...
    ... Practical part of this paper includes the experimental research carried out at Majdanpek open pit, located in the northern part of eastern Serbia and the investigations carried out during mass blasting at Nepričava open pit, located in central Serbia. In this paper, parameters n and K from Sadovskii’s equation ...

  • Процена ризика од загађивања водних ресурса под утицајем напуштених рударских радова на простору Србије

    Nebojša B. Atanacković (2018-08-31)
    Велики број напуштених рударских радова и ограничена средства за рекултивацијуи ремедијацију деградираних простора подстакле су развој метода за издвајањеприоритетних локација на које је потребно усмерити даља истраживања. У датомконтексту, у склопу израде дисертације спроведене су научно-истраживачкеактивности које су за предмет имале анализу утицаја значајнијих напуштенихрударских радова на водне ресурсе на простору Србије јужно од Саве и Дунава.Разматрање предметне проблематике извршено је кроз развој и примену семи-квантитативне методологије за анализу ризика од загађивања површинских иподземних вода на регионалној размери. Примењена ...
    анализа ризика, водни ресурси, водна тела, рудничке воде, рударскиотпад, аналитички хијерархијски процеси, кластер анализа, математичка теоријаатрибута, функције припадности, семи-квантитативне методе
    ... (2003) Pit Lake Systematics: A Special Issue. Mine Water and the Environment 22(4) 167–169. doi 10.1007/s10230-003-0019-6 14. Bowell R.J., Barta J., Mansanares W. and Parshley J. (1998) Geological controls on pit lake chemistry:Implications for the assessment of water quality in inactive open pits ...
    ... Workshop on Mine and Quarry Waste, Orta, May 27-28, 2002, EU Joint Research Centre, p 69-72. 27. Davis A. (2003) A Screening-Level Laboratory Method to Estimate Pit Lake Chemistry. Mine Water and the Environment 22: 194–205. doi 10.1007/s10230- 003-0022-y 28. Davis A. and Eary L.E. (1997) Pit lake water ...
    ... 2 142. Shevenell L. (2000) Analytical method for predicting filling rates of mining pit lakes: example from the Getchell Mine, Nevada. Mining Engineering, 52(3): 53– 60. 143. Singer and Stumm (1970) Acid mine drainage: the rate limiting step. Science, 167, 1121–1123. 144. Singh, E.J.K., Gupta ...

  • Conditions for efficiency of open pit medium voltage power transformers

    Aleksandrović Snežana (2017)

  • Risk management of machines in open pit mines

    Kirin Snežana, Pantelić Milorad, Miljanović Igor (2013)

  • Hybrid Model for Optimisation of Waste Dump Design and Site Selection in Open Pit Mining

    Aleksandar Doderovic, Svetozar-Milan Doderovic, Sasa Stepanovic, Mirjana Bankovic, Dejan Stevanovic (2023)
    Waste management is an unavoidable technological operation in the process of raw material extraction. The main characteristic of this technological operation is the handling of large quantities of waste material, which can amount to several hundred million cubic metres. At the same time, this operation must comply with all administrative and environmental standards. Therefore, optimising waste rock management (particularly haulage and dumping) has the potential to significantly improve the overall value of the project. This paper presents a hybrid ...
    projektovanje odlagališta i izbor lokacije, hibridni model, optimizacija, genetski algoritam

  • Analysis of attainable technical-technological results work open pit mines electrical industry – EPS of Serbia

    Savković Snežana, Majstorović Jelena, Jovančić Predrag (2015)

  • Portion of groundwaters in the floods of western part of open pit Drmno

    Milanović Radomir, Polomčić Dušan, Zdravković Jovan, Stoićević Zoran (2015)