Претрага
1705 items
-
Отварање и припрема лежишта за примену коморно-стубних метода откопавања
Никола Станишић (2024)Циљ мастер рада је да кроз теоријски преглед и практични пример, прикаже процес отварања и припреме лежишта за примену коморно-стубне методе окопавања. Предмет рада је мало лежиште олово-цинкане руде, а од варијација коморно-стубних метода откопавања, изабрана је коморно-стубна метода етажног откопавања са откопавањем одoздо на доле. Рад се бави темама одабира и описа начина отварања и припреме лежишта, методама откопавања, технологијом израде просторија и откопавања лежишта, организацијом рада и проценом трошкова и економичности експлоатације.... = . i s = |-" = --| “ -) i F) i s F a | Hi 5 H š i H || > < ti | = F-| - 5 s F F| - : F| Hi |y -| i = - Hi F e= . “ – š |= a | Eij-I |l Hi F n | R a Š F 5 |> r a š|šS| s e|SŠ|S| z|ves) 3 i s|BR|3ŠSE| 358 NE s|lE|E|S|SŠS š|šŠ|Ss|sc| 55 & s> F| F ti F| |- e= | | F |- - 5s || -- j i s S |-- = &J ...
... Excellent 1310 3.2 x 10— Very good 0.5 x 105 1.6 x 106 Good 1%10"+% 32% 10-5 Nommal to regular 0.5 x 104 1.6 x 105 Bad to regular ix 10 + 3.2 x 105 Bad 0.5 x 103 16 107 Very bad 5108 37 104 Intolerable <0 3 <3.2 x 10 + Absolutely intolerable 05103 1.6 x 103 KoednujeHr nocTaBe Ba3Jlyxa ...
... %> =OG ”> * = -- E = Fa= < o9S |-| |s -| -| = -N| |=| = -I 5 s d F S - E š 5 F ? NN : - : BB Š , r < Hs| o ” |ei 8s o —. E is || -- || = = E 8 P= | i = 3 |e} = = i Đ G Ps | Ž |s [ | El B - Š E š i -| = F o » 20% = A nd nm Ao L Ta Qu Tat EUR/rojn JaHa MeCC EUR EUR EUR T EUR/t I 230120 1861 ...Никола Станишић . Отварање и припрема лежишта за примену коморно-стубних метода откопавања, 2024
-
Методологија интегралне анализе сценарија енергетског развоја
Александар Маџаревић (2019)енергетска безбедност, сценарио развоја, фази логика, сигурност снабдевања, доступност, расположивост, природни гас... 0 .1 )/ 5 (0 .3 + 2 x 0 .5 + 0 .8 + 0 .7 )/ 5 (0 .5 + 0 .4 + 2 x 0 .2 + 0 .3 )/ 5 (0 .1 + 0 .1 )/ 5 0 0 (0 .2 5 + 0 .5 + 0 .4 + 0 .2 )/ 5 (2 x 0 .5 + 0 .4 + 0 .3 + 0 .6 )/ 5 (0 .2 5 + 2 x 0 .2 + 0 .4 + 0 .3 )/ 5 0 n=5 0.08 0.56 ...
... О И Н ТЕ Н ЗИ ВН Е П О ТР О Ш Њ Е РЕ Ф ЕР ЕН ТН И СЦ ЕН АР И О СЦ ЕН АР И О И Н ТЕ Н ЗИ ВН Е П О ТР О Ш Њ Е РЕ Ф ЕР ЕН ТН И СЦ ЕН АР И О СЦ ЕН АР И О И Н ТЕ Н ЗИ ВН Е П О ТР О Ш Њ Е КОМБИНОВАНИ СЦЕНАРИО SC 1 SC 2 SC 5 SC 6 SC 3 SC 4 TКГ ...
... 8 0,9 1 1 2 3 4 5 6 7 8 9 10 РУДАРСКО-ГЕОЛОШКИ ФАКУЛТЕТ 156 МЕТОДОЛОГИЈА ИНТЕГРАЛНЕ АНАЛИЗЕ СЦЕНАРИЈА ЕНЕРГЕТСКОГ РАЗВОЈА односу на комбиновани сценарио 3, и то услед интензивирања индустријског развоја и увећане потрошње природног гаса. • Комбиновани сценарио 5 (SC5) Комбиновани ...Александар Маџаревић. Методологија интегралне анализе сценарија енергетског развоја, Рударско-геолошки факултет, 2019
-
Geotehnički uslovi rekonstrukcije Zavičajnog muzeja u Jagodini
Milan Tokanović (2024)U radu su prikazana geotehnička istraživanja za potrebe rekonstrukcije Zavičajnog muzeja Jagodina.Zavičajni muzej u ulici Kneginje Milice br.82 u Jagodini, ima ozbiljna oštećenja pojedinih delova konstrukcije koja su nastala na objektu tokom više od 80 godina eksploatacije.Kako bi se trajno rešio problem dinamičke stabilnosti i statičke održivosti konstruktivnog sistema objekta,neophodno je bilo definisanje geotehničkih uslova u zoni interakcije prirodne sredine i konstrukcije predmetnog objekta.Izvedena su terenska i laboratorijska ispitivanja na osnovu kojih su dobijene geotehničke podloge. Na osnovu dobijenih geotehničkih podloga ...geotehnička istraživanja, Zavičajni muzej, temelji, fundiranje, nosivost, sleganje, istražne jame, laboratorijska geomehanička ispitivanja, Jagodina... dubine, vrste i načina primenjenog fundiranja. Istražne jame su nakon toga zatrpane, tJ. lokacije su vraćene u prvobitno stanje. Na istražnoj lokaciji je izvedeno ukupno 6 istražnih jama sa oznakom: J-1, J- 2,J-3, J-4, J-5 i J-6. Lokacije istražnih jama su prikazane na situacionom planu (prilog ...
... Strana 3/7 Izveštaj o ispitivanju broj: 14166-14-2591-21 DIJAGRAM STIŠLJIVOSTI Poreklo: Zavičajni muzej Jagodina SRPS EN ISO 17892-5:2017. Lokacija: Jagodina, Kneginje Milice br.82, 35000 smEIm uzorak: J-3 (2.50 - ) 14-2591 \ 0 100 200 300 400 500 600 700 800 c= 0 5 u 0.01 ...
... opita: W= 22.81 % posle opita: W= % Zapreminska masa SRPS EN ISO 17892-2:2015 50 0 o 1 2 3 4 5 6 7 Horizontalna deformacija mm PROMENA VISINE U ZAVISNOSTI OD HORIZONTALNOG POMERANJA LJ | 2 3 4 5 6 7 (u uu i) el io eu uu oj ep BĐ u| Py I} Đ/ A Vlazna p= 1.93 Mg/mš i pl Horizontalna ...Milan Tokanović. Geotehnički uslovi rekonstrukcije Zavičajnog muzeja u Jagodini, 2024
-
Serbian NER&Beyond: The Archaic and the Modern Intertwinned
U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...... Discussion Based on the results shown in Figure 3 (upper part) and Table 5, it becomes obvious that SrpCNNER does not perform so well on un- seen texts. In order to understand the reasons for that, we observed each and single case in isolation, which brought us to certain findings. SrpCNNER performed rather ...
... 105 12 14 1 13,898 18890 804 714 36 56 1 0 0 29,337 18932 1,521 259 46 35 0 5 2 16,821 18950 764 581 51 103 12 6 33 14,454 19021 1,647 2,285 123 58 82 4 15 40,804 19040 1,655 917 221 281 1 3 7 32,367 19140 770 412 240 94 45 5 7 31,583 19190 1,181 797 8 13 49 24 19 33,562 total 14,788 10,405 1,979 1,568 ...
... P re- presents PERS). It should be noted that the EVENT type did not occur in this dataset. ID P R L D O W ∑ tok 19070 44 55 23 23 3 0 2,027 19180 18 13 2 5 0 5 3,928 19121 33 18 14 2 0 0 3,045 Table 4: SrpELTeC-eval NE distribution. We applied the same evaluation procedure for the both recognizers ...Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić. "Serbian NER&Beyond: The Archaic and the Modern Intertwinned" in Proceedings of the Conference Recent Advances in Natural Language Processing - Deep Learning for Natural Language Processing Methods and Applications, INCOMA Ltd. Shoumen, BULGARIA (2021). https://doi.org/10.26615/978-954-452-072-4_141
-
An Italian-Serbian Sentence Aligned Parallel Literary Corpus
This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić. "An Italian-Serbian Sentence Aligned Parallel Literary Corpus" in Review of the National Center for Digitization, Belgrade : Faculty of Mathematics, University of Belgrade (2023). https://doi.org/10.5281/zenodo.11203388
-
Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)
Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović. "Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)" in Challenges : Sustainable Land Management – Climate Change, Advances in Geoecology 43, Catena Verlag GMBH (2014)
-
Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae
Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović. "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae" in Organic Geochemistry, Elsevier BV (2019). https://doi.org/10.1016/j.orggeochem.2019.01.001
-
Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeFen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic. "Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8452-4
-
Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery
... T T T T T T T T T T T ı 5 10 15 20 25 3 3 4 4 S5S R«( 5 7 R 6 20 Maja Milošević, Mihovil Logar and Biljana Djordjević Table 2. Semi-quantitative estimation of the mineral phases in the investigated samples. Phase (%) CIMx CIBd CC Calcite 1 53 97 Quartz 7 6 3 Kaolinite 54 11 L Montm ...
... thermal events are Clay Minerals 147 40 (a) & 35{ : |3 50 ~ 301 L acceptable . Mod.| Š 2 i | i · optimal | a 201 extrusion š Low E 20 15+ CiBd | Pottery i '_> Shrinkage 10 Brick 10 - - - - w - + 0 [[] 5 10 15 20 2 3 3 4 4 0 U0. . 2 30 4(/oR“6 % RQ đ r 8 Plasticity index PI (%) ...
... platy to elongated tubular particles and is present in minor amounts compared to the kaolinite content (Frost et al., ; Joussein et al, ; Milošević & Logar, 146 Iron minerals (goethite and limonite) and halloysite Dehydration of adsorbed and intralayer water 0 100 200 Fig. 5. DTA ...Maja Milošević, Biljana Đorđević, Mihovil Logar. "Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery" in Clay Minerals (2020). https://doi.org/10.1180/clm.2020.20
-
Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability
Marija Živković, Dejan Ivezić (2021)Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија... Fig. 5 The heat load duration curve of DH system in Šabac and share of energy sources in future system M. Živković, D. Ivezić 1 3 the Republic of Serbia 2017). Total energy savings includ- ing production, transport, and conversion are determined to 1229.8 TJ, which is approximately 5% of the ...
... energy factor (fp) determines the primary energy required to supply one unit of useful energy to the consumer. The primary energy factor is calculated by using the methodology given in the European Standard EN 15316- 4-5 (Standard EN 15316-4-5 2017). System boundaries for determining the primary energy ...
... in Europe in the most cases was between 3 and 4, but closer to 3. Jasper et al. (2021) presented correlation between COP and temperature deference (t lift ) between treated wastewater and supply water in DH. Higher-temperature difference corresponds to lower values of COP. The heating regime in ...Marija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
-
Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?
Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov. "Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?" in EGU General Assembly 2024, Vienna, 14-19 April 2024, Göttingen : Copernicus GmbH (2024). https://doi.org/10.5194/egusphere-egu24-568
-
Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements
The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović. "Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements" in Advances in Engineering Software, Elsevier BV (2020). https://doi.org/10.1016/j.advengsoft.2020.102824
-
Combining Heterogeneous Lexical Resources
... and +Ref marks to an entry in Serbian MD. SWN synsets containing such literals can potentially be related by CAUSES relation. The synsets presented in example (7) were linked by the CAUSES relation using this information. (7) (odlomiti:1,…, otkinuti:1a) � (chip:5,knap:2, cut off:3,…) (otkinuti ...
... the Serbian dictionary of simple forms can be used not only to add such and similar links to SWN but also to enrich it with synsets containing derived literals. For instance, the following five entries from the DELAS dictionary (5) povezati,V122+Perf+Tr+Iref+Ref_V=3ivati_A=2n povezivati,V18+ ...
... be transferred from the SMD of simple forms and associated to each synset literal in SWN. For instance, in the following two synsets (3) (obaviti:A1x, uraditi:4) � (do:3, perform:4) (okruzxiti:4, obaviti:B1v) � (smother:1, surround:3) the homographous literal obaviti appears. In both cases ...Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić. "Combining Heterogeneous Lexical Resources" in Proceedings of the Fourth Interantional Conference on Language Resources and Evaluation, Lisabon, Portugal , May 2004, vol. 4, ELRA - European Language Resources Association (2004)
-
Mine ventilation system planning using genetic algorithms
The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methodsNikola Lilić, Ranka Stanković, Ivan Obradović. "Mine ventilation system planning using genetic algorithms" in 6. international symposium on mine planning and equipment selection, Ostrava (Czech Republic), 3-6 Sep 1997, A.A. Balkema, Rotterdam (Netherlands) (1997)
-
A tool for identifying the criticality in the disordered systems with metastable dynamics
Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević. "A tool for identifying the criticality in the disordered systems with metastable dynamics" in Physica A: Statistical Mechanics and its Applications, Elsevier BV (2021). https://doi.org/10.1016/j.physa.2021.125883
-
Environmental Energy Security Indicators as Tools for Environmental Protection
Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост... the Republic of Serbia up to 2025, with the projections up to 2030 [5] and Program of implementation, energy security is defined as one of the basic cursors for ensuring the transition to sustainable energy development. Republic of Serbia is in the process of accession to the EU, with the status ...
... sensitive to any increase in the intensity of energy consumption. As it is already mentioned, it is not enough to observe the absolute values of the emissions, but a broader energy situation must be observed. For some other energy sectors, a detailed analysis would have to be done. 5. CONCLUSION ...
... factors of the NOx to the unit of energy produced are shown in Table 3. Table 3. The emission factors of the NOx [19] Fuel Еmission [g NOx/GJ] Coal 1.5 Fuel-oil 0.6 Natural gas 0.1 Fire wood 3.2 3.2.3 Solid particles Combustion of fossil fuels, in addition to the emission of harmful ...Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević. "Environmental Energy Security Indicators as Tools for Environmental Protection" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)
-
P-T analiza RMU Bitola – krupne klase
Nemanja Dobrosavljević (2024)Cilj ovog diplomskog rada je bio ispitivanje mogućnosti i tehnologije čišćenjauglja, kao i predstaviti rezultate pliva – tone analize koja ima za cilj ocenu mogućnosti čišćenja uglja - krupnih klasa posmatranog uzorka. Da bi se ispitivanje i analiza mogućnosti čišćenja rovnog uglja u REK Bitola uspešno priveli kraju, moralo se uraditi uzorkovanje reprezentativnog uzorka iz koga se potom izdvaja prvi deo koji služi za određivanje sadržaja vlage. Pored tog dela iz uzorka se izdvaja i drugi njegov deo koji će ...ugalj, lignit, Bitola, PT analiza, pliva-tone analiza, čišćenje uglja, suvi ugalj, vlažan ugalj, pepeo, donja toplotna moć, čist ugalj, jalovina, bilans... 20-35 40-65 Grah 5-10 10-20 5-10 15-20 10-20 20-35 Sitan 0 5-10 0 5-10 0 10-20 Griz 0 5 3-5 10 5-10 10-20 Prah 0 3 0 3-5 0 5-10 Minimalnu količinu srednjeg reprezentativnog uzorka dobijamo tako što je određujemo prečnikom najkrupnijih komada u svakoj posmatranoj klasi. U tu svrhu se koristi ...
... | Oreh c 15 do 20 » 16070 » do Q 26 3 “~ 6 126 05 » Geh D 5do 0 0 20 5do 00 90 20 d .0 L 12 do ! Š ı o 530%% o do 00 o 000 2 – – Gar r o L 30 3 -w 3do 00 10 do 20 – – Prah G o 3 o 36 5 d 56 0 o s 15 Dozvoljena odstupanja od sortimana Kada se ugovara sortiman krajnjem kupcu ne sme da bude ...
... Rezultati raslojavanja rovnog uglja klase krupnoće (-60 + 5 mm),.................... 47 ZAKLJUČAK .... iBgg: 0.g 0J O OGAAAAAVAAAVAAAAAAWRARRA RA AAAAA TAZ—“. ZA RIIZOOOOE 52 SADRŽAJ SLIKA Slika 1. Slika 2. Slika 3. Slika 4. Slika 5. Slika 6. Slika 7. Šema sprovođenja pliva - tone analize ...Nemanja Dobrosavljević. P-T analiza RMU Bitola – krupne klase, 2024
-
A WordNet Ontology in Improving Searches of Digital Dialect Dictionary
In this paper, we present a method for automatic generation of a digital resource, which connects all indirect synonyms of a dialect term to all indirect synonyms of a corresponding term in the standard language, aiming to improve the search of a digital dialect dictionary. The method uses SWRL rules defined in the Serbian WordNet ontology to identify sets of synonymous words. It also uses e-dictionaries to produce correct lemmas in standard language that users usually employ in searches. ...... In Section 2 we discuss some previous approaches to searching digital dialect dictionaries. In Section 3 we represent re- sources used to improve searching performances of the digital dialect dictionary: Serbian morphological e-dictionaries used to produce all inflected forms of stan- dard terms and ...
... relations synonym, similar_to, also_see, verb_group, hyponym which enabled us to conclude that the sufficient length of a chain is 3. In that way we manually defined 24 rules (combinations of 4 relations taken 3 at a time) having the form illustrated by the following examples in which a chain is formed ...
... in the same record; 3 — if an infinitive of the standard language has not the same or similar meaning as verbs of the dialect in the same record. At the same time, we made an automatic procedure to check if there were headwords of a dialect dictionary that were not related to any infinitive after ...Miljana Mladenović, Ranka Stanković, Cvetana Krstev. "A WordNet Ontology in Improving Searches of Digital Dialect Dictionary" in New Trends in Databases and Information Systems: ADBIS 2017 Short Papers and Workshops - SW4CH (Semantic Web for Cultural Heritage) 767, Springer International Publishing (2017). https://doi.org/10.1007/978-3-319-67162-8_37
-
Geostatički proračuni sanacije klizišta šipovima
U ovom radu su, polazeći od rezultata geotehničkih istraživanja, prikazani geostatički proračuni sanacije klizišta vertikalnim šipovima. Metodologija proračuna je složena, jer podrazumeva interakciju klizišta i stabilizirajućih šipova. Stoga se simultano analiziraju stabilnost klizišta i stabilnost šipova. Prilikom određivanja bočne otpornosti tla oko šipova koristi se metoda Brinč Hansena koja uzima u obzir trodimenzionalne uslove u tlu i može da se primeni u složenim geološkim uslovima koji su česti u Srbiji. Analize stabilnosti klizišta vrše se odgovarajućim metodama granične ravnoteže. ...sanacija klizišta, interakcija klizišta i šipa, bočna otpornost šipova, stabilnost klizišta i šipova... / / рИ ти / з0г ___ __ —> 61.4 10 2 е 257 р K / — рИИИ li — 9.91 K 40 — 250 —y 36.8 q ___ 207 с и 5/ —_ — 5.88 20 | ——— — 24,5 — 15? _а ——— "C —— 17.6 / _— —|s e _J ___M00 __ ______„ljaž 2 РЖИ њ 10 — 5 7___ 40.2 / -_'_________-–·—···""—–"·_– — 1,93 ;zi:: zip 00 __ —18.14 r= 5 1 ___ | ...
... | _____log? | ) 4»/"_/ К'„' = 0 2а ф = 0% 2 р & a 2 20 0 5 102/B 15 20 2/8 Slika 3. Koeficijent bočnog.pritiska а koji zavisi od kohezije (Brinč Hansen, 1961) Figure 3. Coefficient of lateral pressure which is dependent of cohesion (Brinch-Hansen, 1961) Slika 2. Koeficijent bočnog pritiska ...
... KLIZIŠTA s zahtevani faktor sigurnosti Fs (Slika 5). Figure 5. Stabilizing force s = 1.2 – 1.5, zemljotresa Fs = 1.1. horizontalne sile Hp šip u kliznom telu (Slika 6). Figure 6. Calculation of pile stability 298 1 2 pF - F = H (2) 1 1 2 2F e = F e (3) o 0 površine Lb Navfac, 1982; Poulos et al ...Slobodan Ćorić, Dragoslav Rakić, Dušan Berisavljević. "Geostatički proračuni sanacije klizišta šipovima" in Zbornik radova osmog naučno-stručnog međunarodnog savetovanja - Geotehnički aspekti građevinarstva, Savez građevinskih inženjera Srbije, (2019)
-
Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima
Jelena R. Malenović - Nikolić (2016-07-12)Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranje... po dk ri te ri ju m P1 3 2 6 1. 0000 0.5000 2. 0000 3. 0000 0.26 II P2 3 3 9 2. 0000 1. 0000 4. 0000 5. 0000 0.50 I P3 2 2 4 0.5000 0.2500 1. 0000 2. 0000 0.14 III P4 3 1 3 0.3333 0.2000 0.5000 1. 0000 0.08 IV II po dk ri te ri ju m P1 3 3 9 1. 0000 1. 0000 2. 0000 5. 0000 0.36 ...
... P2 3 3 9 1. 0000 1. 0000 2. 0000 5. 0000 0.36 I P3 2 3 6 0.5000 0.5000 1. 0000 3. 0000 0.19 III P4 3 1 3 0.2000 0.2000 0.3333 1. 0000 0.07 III II I po dk ri te ri ju m P1 2 1 2 1. 0000 1. 0000 0.3333 3. 0000 0.19 II P2 2 1 2 1. 0000 1. 0000 0.3333 3. 0000 0.19 II P3 2 2 4 3. 0000 ...
... po dk ri te ri ju m P1 2 2 4 1. 0000 3. 0000 3. 0000 1. 0000 0.37 I P2 2 1 2 0.3333 1. 0000 1. 0000 0.3333 0.12 III P3 2 1 2 0.3333 1. 0000 1. 0000 0.3333 0.12 III P4 2 2 4 1. 0000 3. 0000 3. 0000 1. 0000 0.37 I IV po dk ri te ri ju m P1 3 2 6 1. 0000 1. 0000 1. 0000 5. 0000 0.31 ...Jelena R. Malenović - Nikolić. "Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)