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Упит dcterms_subject_txt:open pit mining

1041 items

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

    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

  • 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

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

    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

  • Optimizacija i planiranje površinskih kopova stohastičkim modelima

    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.
    ... modelling approaches to risk analysis for open pit mining, The Journal of The Southern African Institute of Mining and Metallurgy, vol. 110, str. 571-579 Consuegra F.R.A., 2010, Exploring stochastic optimization in open pit mine design, Department of Mining and Materials Engineering, McGill University ...
    ... of final pit limits for open pit Buvač using the software package Whittle, International symposium Sustainable development of mining and energy industry ORRE 11, Serbia, 11-15 September 2011. Stevanović D., Radović R., Malbašić V, Kolonja B, 2011. Optimization of final pit limits for open pit Buvač using ...
    ... uncertainty and risk effects in open pit design, Mining Technology, Vol. 111, str. 82-87. Dimitrakopoulos R, Ramazan S, 2008, Stochastic integer programming for optimizing long term production schedules of open pit mines: methods, application and value of stochastic solutions, Mining Technology, Transactions ...

  • Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović (2022)
    This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...
    системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композиција

  • 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
    ... increase utilization of 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 ...
    ... 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 ...
    ... MACHINERY IN OPEN-CAST LIGNITE MINES: A CASE STUDY OF BULLDOZERS Dragan Ignjatović!, 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 ...

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... planning and coal quality control in Minex for the Tamnava West open pit, was based on 6 steps: - Preparation of data - Geological modeling - Ultimate pit design - Design of pit benches - Discretization of benches on mining blocks and cuts - Reporting 2.1.1. Preparation of data ...
    ... on continuous mining equipment. Coal and interburden is excavated with 4 ECC systems (Bucketwheel Excavator - Conveyors-Crushing Plant), and 2 ECS systems (Bucketwheel Excavator- Conveyors-Spreader) are engaged on overburden excavation. General technological scheme of open pit Tamnava West ...
    ... better to develop custom software capable to cope with problems that are unique for specific open pit mine. Good example of custom made software is SUKU, software package developed on Faculty for Mining and Geology (Belgrade) with specialized tools for coal quality control management in a coal ...

  • 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

  • Coal homogenization stockyard sizing “Tamnava – Zapad” case study

    Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer (2016)
    ... simulation for optimizing coal blending strategies in large continuous open pit mining operations (Benndorf, 2013.) integrates simulated realizations of the deposit with a simulation of transport- and blending models of mining operation. Beretta, et al (2010) used geostatistical simulation for reducing ...
    ... a rational 4 to 8 piles. CONCLUSION At open pit "Tamnava - Zapad" coal quality homogenization is planned according to lower heating value, and the process takes place in several steps. The homogenization entails realistic planning of surface mining based on a precise and accurate coal quality ...
    ... Benndorf, J., 2013. Application of efficient methods of conditional simulation for optimising coal blending strategies in large continuous open pit mining operations. International Journal of Coal Geology, 112, pp.141-153. 2. Beretta, F.S., Costa, J.F.C.L. and Koppe, J.C., 2010. Reducing coal ...

  • Human factor risk management procedures applied in the case of open pit mine

    Snežana Kirin, Aleksandar Sedmak, Wei Li, Miodrag Brzaković, Igor Miljanović, Ana Petrović, Simon Sedmak (2021)
    Risk management aims to provide a controlled work environment to ensure the safe operation of the high-risk systems. It is a dynamic process which work in a continual state of change. The issue of human factor risk and rules and regulations in open pit mine is a main focus of this paper in order to develop predictive models of behavior of workers in relation to compliance with the procedures and rules. Presented survey was conducted in open pit coal ...
    Upravljanje rizikom, ljudski faktor, bager sa kašikom, metod konačnih elemenata

  • Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”

    Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić (2015)
    ... 2010 by using the open pit method of mining at the central and northern part of the deposit up to the +410m. Above this level, in the southern part, 1,120,000t of ore reserves remained. A feasibility study on the pos- sible expansion of open pit established that open pit mining of this part of the ...
    ... "Podbracan", and in this way the forthcoming mining and surveying works, are displayed by the integration of the un- derground mining project into the existing mine chambers, infrastructure structures on the terrain surface and into the open pit. Large number of mining and surveying works will follow the ...
    ... point to the existing bench of the open pit at the elevation +420m. keywords: underground mining, bauxite mine, mine surveying, a priori accu- racy assessment. Aleksandar Milutinovic Associate professor University of Belgrade Faculty of Mining and Geology Mining Department Belgrade - Serbia aleksandar ...

  • Application of the system for dust control on the haulage roads on example of open pit Buvač

    Vukelja Željko, Tošić Dražana, Negovanović Milanka (2017)

  • Decision making process in the selection recultivation open pit mine and landfils

    Димитријевић Бојан, Чебашек Владимир, Илић Саша, Мајсторовић Јелена, Јанковић Иван (2017)

  • 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)

  • Analiza geomehaničke stabilnosti kosina na odlagalištima i površinskom kopu Ćeramide

    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

  • 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)

  • Ground surface subsidence monitoring using sentinel-1 in the “Kostolac” open pit coal mine

    Zoran Gojković, Milan Kilibarda, Ljiljana Brajović, Miloš Marjanović, Aleksandar Milutinović, Aleksandar Ganić (2023)
    Open pit coal mining affects surrounding populated areas, resulting in terrain surface deformation. Surface deformation should be monitored as often as possible to control deformations and prevent potential incidents. This paper analyzes time series deformation estimated from the Sentinel-1 satellite images using the Persistent Scatterer Interferometry method to monitor subsidence rates caused by open pit mining activities. It is possible to measure deformations using classical geodetic methods, but those are rarely used in practice because they are time-consuming and ...
    Sentinel-1 InSAR, слегање, рударствo, интерферометрија, даљинска детекција, Костолац

  • 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)
    ... KOVILOVAČA OPEN PIT Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia suzana.lutovacrgf.bg.ac.rs, milos.gligoricorgf.bg.ac.rs, jelena.majstorovicorgf.bg.ac.rs, luka.crnogoracrgf.bg.ac.rs Abstract: In mining, explosives ...
    ... Sciences 2021, 11(5), pp. 2118. 3. Malbašić, V.; Stojanović, L. Determination of Seismic Safety Zones during the Surface Mining Operation Development in the Case of the “Buvač” Open Pit. Minerals 2018, 8(2), pp. 71. 203 Medvedev S.V. Seismika gornwh vzrwvov, Nedra, Moscow, Russia, 1964; pp. 42-43 ...
    ... 141—150. Trajković, S.; Tokalić, R.; Lutovac, S. Sfudy of Seismic Impacts on Adjacent Building due to Blasting Operations at Kovilovača Open Pit, Faculty of Mining and Geology, Belgrade, Serbia, 2004; pp. 2-43. 204 ...

  • Uncertainty in open pit optimisation

    Kolonja Božo, Stevanović Dejan, Pešić Georgiadis Milica, Banković Mirjana, Kolonja Ljiljana (2015)

  • Results of the promethee method application in selecting the technologycal system at the Majdan III open pit mine

    Vujić Slobodan, Hudej Marjan, Miljanović Igor (2013)