Претрага

Упит dcterms_subject_txt:open pit mine

471 items

  • Аnaliza mogućnosti povećanja nagiba završne kosine površinskog kopa “Podbraćan”

    Vladimir Čebašek, Veljko Rupar (2018)
    Eksploatacijom boksita iz ležišta "Podbraćan" formiran je površinski kop sa maksimalnom visinom zavšne kosine od 280 m. Redovnom kontrolom stabilnosti trenutnog stanja kosina površinskog kopa utvrđeno je da faktor sigurnosti iznosi Fs = 1.71 – 1.85, a što je ukazalo da postoji mogućnost povećanja nagiba kosine. U radu je prikazan postupak analize mogućnosti povećanja nagiba završne kosine površinskog kopa "Podbraćan".
    stabilnost kosina, povećanje nagiba kosina, metoda konačnih elemenata

  • Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining

    Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)
    reclamation, coal, sustainable development, multi-criteria decision making, VIKOR method

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • Managing mining project documentation using human language technology

    Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja (2018)
    Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...
    Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation

  • Environmental Noise Impact Assessment for Large-Scale Surface Mining Operations in Serbia

    Uros Pantelic, Petar Lilic, Aleksandar Cvjetic, Nikola Lilic (2023)
    Noise emissions are a significant environmental impact caused by the mining industry in all technological phases of surface mining, mineral processing, and waste disposal. This paper presents the role of noise impact assessment and control in large-scale surface mining operations. Mine planning develops the model of mining operations, ore excavation, and waste dumping scheduling and processing rates, including spatial distribution of mining activities. Such a level of mine planning requires an environmental impact assessment study. This can be achieved ...
    mine planning, noise impact assessment, mining, noise mapping, environmental impact assessment

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

    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
    ... 2010. [8] Bescetin A, A decision support system using analy- tical hierarchy process (AHP) for the optimal envoi- rmental reclamation of an open-pit mine. Eviron- mental Geology, 52, pp. 663-672. 2007. [9] Mohamadibadi H S, Tichkowsky G, Kumar, A. De- velopment of a Multi-Criteria Assessment Model ...
    ... of the existing data in order to optimize the choice of the type of hydraulic excavator in relation to the working conditions of a particular open- cast mine. This paper aims to demonstrate the potential of multi-criteria optimization methods that are used in the analysis of hydraulic excavators. ...
    ... the quality of output information which can affect the future purchasing decisions of this machinery. Key words: multi-criteria methods, open-cast coal mine, auxiliary machines, hydraulic excavators. https://doi.org/10.1016/j.procs.2015.07.081 https://doi.org/10.1016/j.procs.2015.07.081 ...

  • 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.
    ... production planning on the lignite open pit. Second model that is being developed is hybrid type. It has stochastic (Monte Carlo method) and deterministic component and treats the problem of optimization of open pit boundaries. Keywords: open pit mine, planning, optimization, stochastic models ...
    ... of waste transportation system for open pit Buvač, Tehnika, Beograd Mario, J. M, Salma, J, P, 1973, Ore Reserve Education and Open Pit Planning, X-ti APCOM, Johanesburg, South Africa Martinez, L. A. 2003. Can quantification of geological risk improve open pit mine design? MPhil, In Academic. DepartmentThe ...
    ... stohastičkim modelima;Open pit mine optimization and planning with stochastic models Dejan R. Stevanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Optimizacija i planiranje površinskih kopova stohastičkim modelima;Open pit mine optimization and planning ...

  • Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa

    Mirjana V. Banković (2018-07-13)
    Profitabilna eksploatacija sve složenijih ležišta je težak zadatak koji zavisi odtemeljnog procesa analize, planiranja i projektovanja rudnika. Izvodljiv strateškiplan mora da zadovoljava društvena, regulatorna, tehnološka, geometrijska iekonomska ograničenja. Kako bi se postigao osnovni cilj, odnosno profitabilnost iodrživost rudarskog projekta na duži period, neophodno je unapređenjematematičkih modela i informatičke podrške procesima planiranja i optimizacijekoji će omogućiti efikasnu realizaciju ovih ciljeva...
    tehnološki model, integralni model, planiranje, optimizacija,utovarno-transportni sistem, neto sadašnja vrednost projekta
    ... shovel-truck system in open pit mines. International Journal of Surface Mining, Reclamation and Environment, 6 (2), 57-59. Dagdelen, K., 1985, Optimum multi period open pit mine production scheduling. PhD Thesis, Colorado School of Mines. Dagdelen, K., 1986, Optimum open pit mine production scheduling ...
    ... Optimum design of open pit mines. Transactions CIM Bullitin, Vol. 58, 17-24. Li, Z., 1995, Truck-haulage economics of mining open pits by high bench. CIM bulletin, 88, 50-52. 200 Lizotte, Y., 1988, Economic and technical relations between open-pit design and equipment selection. Mine Planning and ...
    ... (ed.). Ramazan, S., 2001, Open pit mine scheduling based on fundamental tree algorithm. PhD Thesis, Colorado School of Mines. Arthur Lakes Library. Ramazan, S., Dagdelen, K., Johnson, T., 2005, Fundamental tree algorithm in optimising production scheduling for open pit mine design. Mining Technology ...

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... facilities consist of a name, place, municipality, district and site address. Object type is selected from the list of provided terms: open pit, underground mine, processing, waste deposit, maintenance workshop, other facility. Data on cadastral parcel or parcels and the titleholder are entered if ...
    ... bench heights, the overall depth of the pit, volume, as well as general data collected during the field visit related to recultivation, water level (whether the mine is above, below, or above and below water level), as well as the site, for example, a pit, a landfill, workshop or plant. Figure 1 ...
    ... else needed to create a web GIS application. GeoServer is an open source tool designed in Java which enables users to serve spatial data. Its primary role is to serve as connection in an open spatial data infrastructure (SDI). Using the open 4 standards of the OGC, GeoServer allows significant ...

  • Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek (2024)
    multi-criteria decision-making, definition of criteria, underground exploitation

  • A Fuzzy Expert Model for Availability Evaluation

    Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić (2019)
    Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...
    raspoloživost, ekspertski sistem, fazi teorija, buldozeri
    ... bulldozers that operate to three different open pit mines in Serbia was evaluated using the proposed expert model. Machines were compared individually (selected machine at selected open pit mine), but also integral comparisons between machines and open pit mines were made. Obtain results should be ...
    ... AVAILABILITY INDICATORS A n a ly st N o . A v a il a b il it y in d ic a to r Questionnaire: Bulldozer Liebherr – Drmno Open Pit Mine Grade: Excellent Good Average Adequate Poor The degree of affiliation, % 1 R 40 60 M 100 S 100 2 R 20 80 M 100 ...
    ... be used for the improvement of maintenance and logistic support at open pit mines, as well as an important parameter during the further purchase of this type of machines. Since the models based on experts’ opinions in principle carry a dose of subjectivity, the presented model and obtained results ...

  • Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova

    Daniel P. Kržanović (2016-06-14)
    Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...
    površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).
    ... W., Kuchta, M., 1995, Open pit mine planning and design, Balkema, Rottherdam, pp. 427-442. Hustrulid, W., Kuchta, M., 1998, Open Pit Mine Planning and Design, A.A. Balkema, Rotterdam, Netherlands, vol. 1, ISBN 9054101814. Hustrulid, W., Kuchta, M., 2006, Open Pit Mine Planning and Design – Volume ...
    ... 64-67. Dowd, P.A., Onur, A.H., 1992, Optimizing open pit design and sequencing, Proceedings of 23rd APCOM symp., Tucson, Arizona, pp. 411 – 422. Dowd, P.A., Onur, A.H., 1993, Optimization of Open-pit Mine Design-Part 1: Optimal Open-pit Design, Transactions of the Institute of Mining and ...
    ... Profitability Sensitivity Analysis of a Mining Venture, Mine Evaluation Seminar at the University of Minesota. Bernabe, D., Dagdelen, K., 2002, Comparative analysis of open pit mine scheduling techniques for strategic mine planning of TINTAYA copper mine in Peru, SME Annual Meeting. Berry, E.S., 1922 ...

  • Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje

    Marko Lazić, Filip Miletić, Milena Lekić, Veljko Rupar, Željko Petrović, Lazar Žujović (2021)
    U radu su analizirani eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje. Period analize je prvih šest meseci tekuće godine. Analiza je vršena sa aspekta ostvarene proizvodnje, kvaliteta uglja, efektivnog vremena rada, kapacitetnog i vremenskog iskoršćenja i zastoja sistema. Za poređenje podataka različitih parametara koji po svojoj prirodi nisu međusobno uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja.
    proizvodnja uglja, zastoji, metode višekriterijumskog odlučivanja
    ... Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje Exploatation effects of coal systems on the open pit mine Tamnava–West field Marko Lazić[footnoteRef:1], Filip Miletić[footnoteRef:2], Milena Lekić2, Veljko Rupar2, Željko Petrović[footnoteRef:3], Lazar ...
    ... uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja. Abstract: This paper analyzed the exploitation effects of coal systems at the open–pit mine Tamnava–West field for the first six months of the current year. The analysis was performed in the aspect of reached production, coal quality, effective ...
    ... mining and mineral processing: Applications and trends. Expert [8] Bazzazi, A. A., Osanloo, M., & Karimi, B. (2011). Deriving preference order of open pit mines equipment through MADM methods: Application of modified VIKOR method. Expert Systems with Applications, 38(3), 2550-2556;Systems with Applications ...

  • Improving efficiency of thermal power plants through mine coal quality planning and control

    Mirjana Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja (2018)
    Главни циљ контроле квалитета угља у рудницима лигнита је снабдевање термоелектрана угљем чији квалитет мора да се креће унутар одређених квалитативних ограничења. Карактеристике угља могу да утичу на ефикасност, поузданост и расположивост како котла тако и јединица за контролу емисије. У овом раду аутори су презентовали интегрисану симулацију рударског процеса као нови приступ у истраживању променљивости калоричне вредности угља приликом експлоатације комплексног лежишта лигнита. Резултати таквог приступа омогућавају драгоцен увид у перформансе континуалног рударског система у смислу контроле променљивости ...
    mine planning, variability of coal quality, simulation, coal blending

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

    Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)
    Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi
    ... continuous (twenty-four hours a day) production and to excavate the planned amount of ore and overburden in an open-cast coal mine, it is necessary to achieve optimal working conditions. The operational efficiency of the basic (continuous) machinery is in a direct correlation with the work of the auxiliary ...
    ... (discontinuous) machinery, whose role is to accomplish all of the auxiliary workings on time. In effect, in the process of production in an open-cast coal mine, there must always be several different auxiliary machines available. The absence or insufficient number of the adequate auxiliary machinery ...
    ... method of evaluation is supposed to show the connection between the characteristics of the machines and the exact working conditions in the open-cast coal mine, leading to the right choice of machine in relation to those conditions. Energies 2019, 12, 2245; doi:10.3390/en12122245 www.mdpi.com/journ ...

  • Razvoj integralnog modela za optimizaciju diskontinualnog sistema proizvodnje na površinskim kopovima nemetala

    Miodrag Čelebić (2024)
    Izbor optimalne mehanizacije u diskontinualnom sistemu transporta je jedna od najvažnijih odluka koju treba donijeti prilikom projektovanja površinskih kopova. Pri izboru optimalne mehanizacije, uticaj ima veliki broj faktora, kako prirodnih – geoloških i ekoloških, tako i tehničkih, ekonomskih i socijanih. Neki od njih se mogu izraziti numerički, u određenim mijernim jedinicama, a neki opisno, lingvističkim varijablama, shodno uslovima koji vladaju na rudnim ležištima, a koje karakterišu visok stepen neizvjesnosti i neodređenosti kako prilikom istraživanja, tako i tokom procesa eksploatacije ...
    izbor mehanizacije, tehnologija eksploatacije, diskontinualani sistem, ekspertsko odlučivanje, lingvističke varijable, MCDM, FAHP

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... average bench heights, the overall depth of the pit, volume, as well as general data collected during the field visit related to reclamation, water level (whether the mine is above, below, or above and below water level), as well as the site, for example, a pit, a landfill, workshop or plant. Figure 8 shows ...
    ... resources domain. This includes, in particular: (a) urban development, namely its impact on the environment, especially the wider area around the open pit; (b) spatial planning of the same wider area within reclamation; (c) the soil and its relationship with agricultural activities in the wider area ...
    ... was mostly used for geoprocessing and supporting calculations. The most important technical and technological factors: degraded area, volume of open pit, type of mineral resource, remediation type, type of mining site or facility, legal and working status, and type of ownership. Energies 2016 ...

  • A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice

    Nikola Lilić, Ivan Obradović, Ranka Stanković (2002)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...
    ... the total air flow volume is 42.4 m3/s. The workings in the pit are ventilated auxiliary, in a compression mode, with the use of axial fans of the APXE-630 type. In order to assess the overall mine ventilation system state of the “Soko” mine the following measurements were initially undertaken: te ...
    ... 03:36:16 A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice Nikola Lilić, Ivan Obradović, Ranka Stanković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining ...
    ... faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Mineral Resources Engineering, Vol. 11, No. 4 (2002) 361–382 c© Imperial College Press A KNOWLEDGE-BASED APPROACH TO MINE VENTILATION PLANNING IN YUGOSLAV ...

  • Keyword-Based Search on Bilingual Digital Libraries

    Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović (2017)
    This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...

  • Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit

    Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić (2015)
    ... “Kovilovača“ open pit Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit | Suzana Lutovac ...
    ... the functional cor- relation is accepted as a good one. 4 REVIEW OF MASSIVE BLASTING AT THE “KOVILOVAČA“ OPEN PIT - DESPOTOVAC 4.1 General characteristics of the “Kovilovača" open pit The “Kovilovača“ limestone deposits have an exceptionally simple geological structure. Limestones of this ...
    ... Tokalić R.; (2008): Analysis of the Soil Oscillation Law in the Example of the Open Pit „Kovilovača“, Podzemni radovi No.16, pp. 47-56, December 2008, RGF Belgrade. [10] Savić M., (2000): Blasting at the Open Pits, Monograph, RTB Bor, Copper Institute Bor, Indok Center, Bor, pp. 317, (In ...