Претрага
364 items
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Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija
Srđan D. Kostić (2013-11-04)U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja... America, Geological Society of America, Decade Mpa volume, 367-386. 4. Andrieux, P.P., Simser, B.P. 2001. Ground stability-based mine design guidelines at Brunswick Mine. Underground mining methods handbook, Hustrulid, W.A., Bullock, R.L. (eds.), Society for mining, metallurgy, and exploration ...
... fault activated at seismic slip rates, Geophysical Research Letters 33, 1-4. 123.Mollison,L., Sweby, G., Potvin,Y. 2001. Changes in mine seismicity following a mine shutdown. In Proceedings of Advanced Rock Mechanics practice for underground Mines. Australian Centre for geomechanics, 22-23 March ...
... McGarr, A., Green, R.W.E. 1971. Focal mechanisms of some large mine tremors on the Witwatersrand. Chamber of Mines circular 3/71, 16 p. 169.Spottiswoode, S.M., McGarr, A. 1975. Source parameters of tremors in a deep- level gold mine. Bulletin of the Seismological society of America, 65, 93-112. ...Srđan D. Kostić. "Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-04)
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Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija
Srđan D. Kostić (2013-11-04)U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja... America, Geological Society of America, Decade Mpa volume, 367-386. 4. Andrieux, P.P., Simser, B.P. 2001. Ground stability-based mine design guidelines at Brunswick Mine. Underground mining methods handbook, Hustrulid, W.A., Bullock, R.L. (eds.), Society for mining, metallurgy, and exploration ...
... fault activated at seismic slip rates, Geophysical Research Letters 33, 1-4. 123.Mollison,L., Sweby, G., Potvin,Y. 2001. Changes in mine seismicity following a mine shutdown. In Proceedings of Advanced Rock Mechanics practice for underground Mines. Australian Centre for geomechanics, 22-23 March ...
... McGarr, A., Green, R.W.E. 1971. Focal mechanisms of some large mine tremors on the Witwatersrand. Chamber of Mines circular 3/71, 16 p. 169.Spottiswoode, S.M., McGarr, A. 1975. Source parameters of tremors in a deep- level gold mine. Bulletin of the Seismological society of America, 65, 93-112. ...Srđan D. Kostić. "Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-04)
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... evaluate and control the seismic effect of blasting, as well as to plan it, the determi- nation of soil oscillation law is required, with the strike: mine field - facilities to be protected. One of the most commonly used equations is that of M.A. Sadovski defining the law of alteration in the oscillation ...
... da se veličina potresa za svako sledeće miniranje unapred planira 2 . Na taj način smanjuju se negativni efekti miniranja. Pod negativnim efektima mini- mailto:suzana.lutovac@rgf.bg.ac.rs mailto:nebojsa.vidanovic@rgf.bg.ac.rs mailto:cedomir.beljic@rgf.bg.ac.rs mailto:zoran.gligoric@rgf.bg.ac.rs Broj ...
... redukovanih rastojanja R, registrovane vrednosti brzina oscilovanja tla po komponentama vt, vv, vl i rezultujuće brzine oscilovanja vrez za mini- ranja I - II na ukupno deset mernih mesta MM date su u tabeli 2. Tabela 2. Prikaz parametara miniranja i rezultata merenja R.b. Min. b ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije
Branko R. Miladinović (2016-04-27)Ugalj predstavlja energent na čijoj osnovi se razvija privreda celog sveta.Zato mu se pridaje velika pažnja u eksploataciji i preradi, bez obzira na mnogeštetne uticaje na životnu sredinu, a posebno na efekat staklene bašte koji sestvara emisijom zagađujućih materija u atmosferu radom termoelektrana naugalj.U Srbiji, resurs koji se danas u najvećoj meri koristi u proizvodnjielektrične energije je ugalj i on učestvuje u proseku sa 70 %. U strukturi ukupneproizvodnje ugljeva, dominiraju lignitski ugljevi sa učešćem od 98 %, a ...Srbija, kameni i mrki ugalj, podzemna eksploatacija, preradauglja, rudničke vode, hemijski sastav, emisija zagađujućih materija, životnasredina... conditions that govern the formation of mine water, as a result of numerous natural and man-made factors. The mine water regimes are assessed and statistical methods applied to define the dependency and effect of precipitation and surface water on the rate of mine water inflow into underground mining ...
... of coal seam wetting. One such example is Štavalj Mine, which features the highest rates of underground mine water inflow in Serbia (51-77 l/s, 2003-2011). Multiple linear regression model is used for simulations and short-term forecasting of mine water inflow, to establish a correlation between ...
... for the open-pit hard coal mine Progorelica in the Ibar Basin. Hydrochemical analyses reveal two types of water, based on the chemical composition: a) mine water with total dissolved solids (TDS) of M<1000 mg/L, which occur in coal seam roofs and floors, and b) mine water with a TDS of M>1000 ...Branko R. Miladinović. "Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-04-27)
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Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија
... што указује да је носиоц магнетизације или магнетит или оксидовани магнетит. Ово је такође доказано експериментима за одређивање магнетичних мине‐ рала, сем за један локалитет – Мали Кривељ који је интересантан случај из следећег разлога. Са овог локалитета недавна минералошка истраживања ...
... were oriented in situ with the magnetic and/or sun compass. The principal aim was to find out if the studied area was involved in a large scale displacement during or after the time covered by the samples. METHODS The samples were cut into standard‐size specimens and the natural ...Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков. "Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија" in Knjiga apstrakata 17. Kongres geologa Srbije, Vrnjačka Banja 17-20. maj 2018., Српско геолошко друштво (2018)
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English for Geology Students. 1
Lidija Beko (2023)... Wonders The Naica Caves, Chihuahua, Mexico A series of astonishing caves containing crystal formations have been discovered by miners in the Naica Mine in Mexico. The first to be explored was the Cave of Swords, which was discovered in 1910 and contains selenite or gypsum (CaS0,·2H,0) crystalline ...
... prove hypotheses, and also 12 Meteorite created new ways of studying the interactions of terrestrial cycles and systems on a truly global scale, leading to a new field of research known as Earth system science. As well as looking back towards Earth, humanity has also begun to look outward ...Lidija Beko. English for Geology Students. 1, Belgrade : The Faculty of Mining and Geology, 2023
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Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)
Невенка Новаковић (2024)Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрадаНевенка Новаковић. Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава), Београд : [Н. Новаковић], 2024
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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... al 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 ...
... management principles for the reclamation of old mine sites, the case of Thoricos bay in Lavrion, Greece, 2005. 3. Bascetin, A., A decision support system using analytical hierarchy process (AHP) for the optimal environmental reclamation of an open-pit mine, 2006; 4. Belegendu A. D., Chandrupatla T ...
... and control of realization of the business activities. As the key process, 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 ...Bojan S. Dimitrijević. "Оптимизација управљања процесима рекултивације површинских копова угља" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-05-30)
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Tehnologija izrade jamskog magacina eksploziva i eksplozivnih sredstava
Sara Nikolić (2024)Završni rad sa temom „Tehnologija izrade jamskog magacina eksploziva i eksplozivnih sredstava” sastoji je iz opšteg dela i specijalnog dela. U opštem delu prikazani su : geologija ležišta, određivanje kapaciteta magacina eksplozivnih sredstava, lokacija i opis magacina. U specijalnom – drugom delu ovog završnog rada prikazani su: potrebni proračuni, tehnologija izrade magacina, predmer i predračun radova, normativi materijala, energije i radne snage, organizacija i dinamika izvodjenja radova. Prilikom izrade završnog rada, uz primenu svih propisa vezanih za ovu oblast, korišćene su ...... začepljenosti mina (usvojeno a=0,66). 28 =__27-551 41 — —16.46 bušotina. 0,028“ ·1100·0,66 Nus=17 bušotina. Usvojeni broj minskih bušotina iznosi N=17, od toga: - zalomne, nx=4, - pomoćnih np=2, - perifernih npe=11. Raspored minskih bušotina i redosled paljenja mina po tipovima jamskih ...
... prosečno vreme zastoja. PFreme punjenja i povezivanja mina: Ta = tpu + tpov + tn = 25,3 +8,5+5 = 39 min * 0,65 h (6.13) gde je: tpu—17x1,5=25,5min. - vreme punjenja bušotina (usvaja se 1,5min/buš), tpov=1 7x0,5=8,5min. — vreme povezivanja mina (usvaja se 0,5min./buš), tm=5min. – vreme iniciranja ...
... radnu operaciju obavljaju dva radnika i to bušač (KV) i pomoćnik bušača (PK). Ova grupa radnika vrši i punjenje i aktiviranje mina. Samo povezivanje i aktiviranje mina može vršiti samo radnik sa položenim ispitom za minerske poslove. Utovar i odvoz odminiranog. materijala sa radilišta do površine ...Sara Nikolić. Tehnologija izrade jamskog magacina eksploziva i eksplozivnih sredstava, 2024
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Uticaj geološke neizvesnosti u razvoju rudarskih projekata
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 ...... Seminar. AusiMM. Sydney. [20] Snowden D. V., Glacken I. and Noppe M. (2002). Dealing With Demands of Technical Variability and Uncertainty along the Mine Value Chain. Paper presented at Value Tracking Symposium. Brisbane, Qld. 92 [21] Stevanović D. (2015). Optimizacija i planiranje površinskih kopova ...
... Resources and Mineral Reserves. Canadian Institute of Mining, Metallurgy and Petroleum. [5] Dimitrakopoulos R. (2018). Advances in Applied Strategic Mine Planning. Springer International Publishing. [6] Dimitrakopoulos, R., Farrelly, C. T., and Cheuiche Godoy, M. (2002). Moving forward from traditional ...Petar Marković, Dejan Stevanović, Mirjana Banković. "Uticaj geološke neizvesnosti u razvoju rudarskih projekata" in XI Međunarodna konferencija "Ugalj i kritični minerali 2023", CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Strukture kristala - odabrana poglavlja iz kristalografije i njena multidisciplinarnost
Ljiljana Karanović (2024)Ljiljana Karanović. Strukture kristala - odabrana poglavlja iz kristalografije i njena multidisciplinarnost, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet, 2024
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Automatic construction of a morphological dictionary of multi-word units
The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...electronic dictionary, Serbian, morphology, inflection, multiwordn units, noun phrases, query expansion... component was not in the dictionary of simple words, in bruto plata ‘gross income’ the first component was an adjective that does not inflect, in mini-suknja ‘mini-skirt’ the first component was a prefix. All three examples belong to the same super-class 2xn. There are still cases when no additional information ...
... strategy upon analogy with other rules. As the number of rules does not affect the effectiveness of the procedure (except the processing time to a small degree) we believe that unused rules should not be removed because they may prove useful in the future. Indeed, the subset “common nouns” used seven ...
... “toponyms”. In some cases much 10 Authors Suppressed Due to Excessive Length larger sets of solutions were offered. The leader is Velika Plana (a small town in Serbia) with 52 solutions offered. Such a high number of solutions occurred due to the homography of both components. However, even in this ...Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić. "Automatic construction of a morphological dictionary of multi-word units" in Lecture Notes in Computer Science 6233, Advances in Natural Language Processing, Proceedings of the 7thInternational Conference on NLP, IceTAL 2010, Reykjavik, Iceland, August 2010, Springer (2010): 226-237. https://doi.org/10.1007/978-3-642-14770-8_26
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Terminology Acquisition and Description Using Lexical Resources and Local Grammars
Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...... singular form or only in plural form, then the lemma will be in the respec- tive form (e.g. only singular form jamski vazduh ‘air in the underground mine’, only plural form atmosferske padavine ‘atmos- pheric precipitation’); if it appeared in both plural and singular forms, then both forms of lemmas ...
... subdomains: petrology, mineralogy, hydrogeolo- gy, geophysics, structural geology etc. RudOnto is covering the larger area of mining engineering and mine safety terminology (Stankovic et al., 2012). The third termbase used is the Dictionary of Library and Information Sciences (RNBS), 4 developed by ...Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić. "Terminology Acquisition and Description Using Lexical Resources and Local Grammars" in Proceedings of the 11th Conference on Terminology and Artificial Intelligence, Granada, Spain, 2015, Granada : LexiCon (Universidad de Granada) (2015)
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Classification of mining waste landfills according to legislation in Serbia
... example of flotation tailings management facility of copper mine, it was found that the realistic risk-based classification of landfills requires a very detailed analysis of all criteria leading to the final category. Key words: mine waste, tailings, Bylaw, landfill, category A, classification ...
... of Large Dams, 2001 [13] International Committee on Large Dams (ICOLD). Small dams design, surveillance, and rehabilitation – Bulletin No 143, ICOLD, Paris, 2011, dostupno na: https://fdocuments.in/document/icold-small-dams- sept-2011.html, pristupljeno 2021-05-28. [14] NZSOLD: New Zealand Dam ...
... 06L0021 https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32006L0021 https://fdocuments.in/document/icold-small-dams-sept-2011.html https://fdocuments.in/document/icold-small-dams-sept-2011.html https://nzsold.org.nz/wpcontent/uploads/2019-/10/nzsold_dam_safety_guidelines-may-2015-1.pdf ht ...Dragana Nišić, Uroš Pantelić, Nikoleta Aleksić, Neda Nišić. "Classification of mining waste landfills according to legislation in Serbia" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2021). https://doi.org/10.5937/tehnika2105575N
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Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)
M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić. "Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)" in International Journal of Coal Geology, Elsevier BV (2020). https://doi.org/10.1016/j.coal.2020.103411
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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... (2–30) At surface Jelenkovac Medium Medium Open pit 1 (4) Up to 40 Mečji do Small Good Open pit 1 (10) Up to 80 Orljak Small Good Open pit 1 (up to 8.5) 10 Beretnica Small Good Open pit 1 (oko 3) At surface Dubrava Small Good Open pit 1 (do 9) Up to 10 Umište Medium Low Open pit 1 (1,5–12,5) At ...
... resources/reserves classification. Exploration Stage (USA) Property Exploration Proving Assured Kaolin Reserve Mine Planning & Development Kaolin Quality Control and Mine Inventory Volume and Tonnage Measurement Exploration stage (Ser- bia) Preliminary Detailed Detailed Exploration ...
... hydrothermal and mixed-hydrothermal with subsequent weathering [44]. The economic importance of all hydrothermal kaolin deposits in Serbia is small due to small deposits/ore bodies, and usually complicated morphology of deposits [45]. The most important kaolin deposits originated by weathering of granitic ...Vladimir Simić, Dragana Životić, Zoran Miladinović. "Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays" in Resources, MDPI AG (2021). https://doi.org/10.3390/resources10060063
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A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers
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 ...Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić. "A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers" in International Journal of Industrial Engineering: Theory, Applications and Practice (2019)
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Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika
Saša M. Jovanović (2016-05-16)Investiciono okruženje skopčano sa rudarskom industrijom je veoma svojstveno kada seuporedi sa okruženjima koje susrećemo u tipičnim proizvodnim industrijama. Neke odkarakterisitka rudarstva, koje su često naznačene kao jedinstvene su: visok intenzitetinvesticija, dugi predproizvodni periodi, visok rizik i neobnovljivost resursa.Investiranje u sistem otvaranja rudnika predstavlja dobar primer ireverzibilneinvesticije. Takva investicija zahteva pažljivu analizu, jer nakon njene realizacije ona sene može nadoknaditi bez značajnog gubitka vrednosti. Očigledno je da izbor sistemaotvaranja podzemnog rudnika pripada strateškom planiranju...... Beogradu, Matematički fakultet, Beograd, 2013. [14] Elevli, B., Demirci, A. and Dayi, O., Underground haulage selection: Shaft or ramp for small-scale underground mine, The Journal of The South African Institute of Mining and Metallurgy, (2002), pp. 255-260. [15] Elizabeth, S., Sujatha. L. (2011). Fuzzy ...
... loss a value. Obviously, the selection of an underground mine development system belongs to strategic planning. The question of which underground mine development system is suitable for accessing and exploiting a deposit is one that mine engineers and planners are faced with, when investigating ...
... speaking, the process of selection of an underground mine development system encompasses the identification, evaluation and selection among alternatives. To solve the problem of selecting a suitable development system, we consider an underground mine development system as a network interconnecting ...Saša M. Jovanović. "Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-16)
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Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia
This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...... excep- tion is at their contacts with peridotites in the footwall where only slightly recrystallized calcite could be noticed. Skarns occur as small-scale bodies up to a few metres thick. Their texture is either granoblastic or nematoblastic, and structure is massive, rarely banded. The selected ...
... 1.926Cr0.002Ti0.012)2.000 (Si3.015Al0.000)3.015) in the rim, with small amounts of alman- dine (core), and spessartine (rim) components. Calcium content is uniform and stable in the core and rim, although the core contains small inclusions of epidote, quartz and rarely spha- lerite. Andradite-rich ...
... and Geology, University of Belgrade for support. The authors also wish to acknowledge the general support from all stuff of the Company Rudnik Mine. References Anđelković M. 1973: Geology of Mesozoic vicinity of Belgrade. Annales Geologiques de la Peninsule Balkanique 38, 1–136 (in Serbian) ...Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol. "Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/10.31577/GeolCarp.72.1.2
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Допринос одређивању безопасног растојања при извођењу минирања
... activity caused by blasting operations. Accordingly, the adequate instrumental measurements were carried out at the facility „Kamalj” – near Mionica mine with the aim to protect the surrounding building facilities when establishing the safety distance and the maximum quantity of explosive that may ...Slobodan Trajković, Sanja Bajić, Ivan Krsmanović. "Допринос одређивању безопасног растојања при извођењу минирања" in ДИТ : Друштво истраживање технологије (2023)