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Упит dcterms_subject_txt:geotechnical investigations

208 items

  • Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Tina Dašić (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction
    ... confirmed by assessing, the groundwater ages. Based on the development of karstification, as presented in this paper, as well as on previous investigations, explanations of four types of circulation within same karst system are provided. The results of measurements of stable isotopes (H, 18O, and ...
    ... of different types of water, in terms of temperature, chemical composition, and age, within the same karst system. In this research, complex investigations of the Krupaja arst system aimed to provide a large number of new results; the system was reviewed and analyzed and conclusions were made related ...
    ... savac-Belosavac-2 (eastern Serbia). Carbonates Evaporites 2020, 35, 16. [CrossRef] 4. eannin, P.Y.; Groves, C.; Hauselmann, P. Speleological Investigations, Methods in Karst Hydrogeology; LAH Book Series; Taylor & Francis: London, UK, 2007. 5. ovacs, A. Geometry and Hydraulic Parameters of Karst ...

  • Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad)

    Vladimir Kovačević (2024)
    Za potrebe izrade završnog rada na četvrtoj godini Rudarsko-geološkog fakulteta, studijskog programa Geotehnika, pod mentorstvom doc. dr Zorana Berisavljevića, odabrana je tema „Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad)“. Osnovni metodološki pristup koji je korišćen za rešavanje postavljenog problema predstavlja kabinetsko istraživanje dostupne dokumentacije, analiza i interpretacija rezultata izvedenih geoloških,geotehničkih i geomehaničkih istraživanja. Predstavljene su osnovne informacije,karakteristike i upotreba prednapregnutih geotehničkih sidara.Analiziran je tok testiranja granične nosivosti prednapregnutih sidara. Na osnovu izvršenih geotehničkih istraživanja terena i ispitivanja ...
    geotehnička istraživanja, prednapregnuta sidra, nosivost sidra, standard SIA V 191
    ... Ha CTEPOM rpany Job description: Construction of bridge in Uzice Old town - Geotechnical investigations TexH\vuka nokyMeHTauuja: rJEOTEXHI/MUKVI EJTJABOPAT 'asa npojekra: nrnyn3M Technical documentation: GEOTECHNICAL REPORT Design stage: QdOTOTPAOVJE JE3TPA ByLUIOTVIHE 5-1 BOREHOLE B-1 PHOTO ...
    ... MocTa Ha CTapoM rpany Job description: Construction of bridge in Uzice Old town - Geotechnical investigations Maaa npojekra: Design stage: PrIVr13\ TexH\Muka nokyMeHTauyuja: rFEFOTEXH/UKVI EJJABOPAT GEOTECHNICAL REPORT QdOTOTPAOVJE JES3TPA ByLUIOTVIHE 5-1 BOREHOLE B-1 PHOTO DOCUMENTATION ...
    ... Ha C'rapoul rpany Job description: Construction of bridge in Uzice Old town - Geotechnical investigations TexH\vuka nokyMeHTauuja: rJEOTEXHI/MUKVI EJTJABOPAT asa nPojeKTa rprn3M Technical documentation: GEOTECHNICAL REPORT Design stage: QdOTOTPAOVJE JES3TPA ByUIOTMHE 5-2 BOREHOLE B-2 PHOTO D ...

  • Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal

    Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)
    Polimeri i plastika, opšta hemija
    ... and low-rank bituminous coal have huminite/vitrinite reflectance (Rr) in the range from 0.30 to 0.50% and cannot be used for coking. Our previous investigations showed that Serbian lignite is not suitable for coal briquetting, whereas a very limited Polymers 2021, 13, 759. https://doi.org/10.3390/polym13050759 ...
    ... and low-rank bituminous coal have huminite/vitrinite reflectance (Rr) in the range from 0.30 to 0.50% and cannot be used for coking. Our previous investigations showed that Serbian lignite is not suitable for coal briquetting, whereas a very limited Polymers 2021, 13,759. https: //doi.org/10.3390/polym13050759 ...
    ... generation potential than kerogen type III (depleted in hydrogen), representing the main kerogen type in humic coal [26]. In organic geochemical investigations, different pyrolytic methods are also widely used for estimation of the origin, type/quality, depositional environment, maturity, and hydrocarbon ...

  • The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)

    Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov (2019)
    Geography, Planning and Development,Aquatic Science,Biochemistry,Water Science and Technology
    ... 709 1700 1444 45 787 1605 1517 50 1077 727 1325 1517 55 1519 730 843 1523 60 1581 1818 566 1705 65 1585 1833 489 1764 During the course of the investigations in the tunnel, data from consecutive hydrometric measurements were used to identify characteristic tunnel sections (Sections I, II and III) between ...
    ... assessment of the zone with the highest water losses pointed to the part of the tunnel where the concrete lining was unstable. Comprehensive tunnel investigations require the determination of the chemical composition of the groundwater that seeps into the tunnel. Hydrochemical data were used to examine their ...

  • Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија

    Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков (2018)
    ... n with such Curie‐points is 35 (original mineral) or 40 (after the first heating) mole  %  Ilmenite. As  the mineralogical  and  the magnetic  investigations were  not  carried  out  on  the  same  sample, we can assume that the composition of the hemoilmenite varies within the andesite body, but  f ...

  • Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta

    Aleksandar Pačevski (2022)
    ... itself. Proper use of the up-to-date microprobe methods in the mineral studies can be achieved only by their combining and upgrading on the basic investigations by polarized light microscope. A good model for this research approach represents the study of pyrite from the polymetallic Cu-Au-Ag-Pb-Zn Čoka ...

  • Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)

    Dušan Polomčić, Dragoljub Bajić, Jelena Zarić (2015)
    A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...
    Water supply, Aquifer, Flow, Groundwater regime, Numerical modeling, Particle tracking
    ... study area GEOLOGICAL SETTING OF THE STUDY AREA Extensive geological research (exploratory drilling, geophysical activities, paleontological investigations) has resulted in a relatively robust geological database [17]. The lithological units comprise Pliocene and Quaternary sediments. The base of ...
    ... Approach for Source Water Protection, Ground Water, Vol. 44, No. 5, pp. 732-742, 2006. 17. Soro, A., Dimkić, M., Josipović, J., Hydrogeologic Investigations related to Watersupply in Vojvodina, 100 Years of Hydrogeology in Yugoslavia, University of Belgrade – Faculty of Mining and Geology, pp 101-111 ...

  • Geotehnički uslovi izgradnje nadvožnjaka "Balajnac" na autoputu E-80 deonica: Niš - Merošina

    Dragoslav Rakić, Nikola Božović (2024)
    U sklopu prve deonice autoputa E-80 Niš – Merošina, izgrađen je nadvožnjak u zoni sela Balajnac koji je oslonjen na tri stubna mesta na međusobnom rastojanju od oko 26 m. Svaki stub je fundiran na šipovima i to sa predloženim rasporedom od 2 šipa u grupi na međusobnom rastojanju od 3.6 m. U radu su na osnovu izvršenih geotehničkih istraživanja terena, analizirani rezultati nosivosti vertikalno opterećenog šipa prečnika 1.2 m i dužine šipa od L = 23 m. Analiza ...
    nadvožnjak Balajnac, šip, probno opterećenje šipa, projektni pristup, granična stanja

  • Geotehnički uslovi izgradnje tunela „Debelo brdo“ na autoputu E-80 Niš - Pločnik

    Dragoslav Rakić, Radojica Lapčević, Irena Basarić Ikodinović, Dragan Lukić (2022)
    Tunel „Debelo brdo“ nazvan je po najizraženijem relјefnom obliku na ovoj drugoj deonici autoputa E-80 Niš – Pločnik. Osnovnu geološku građu na lokaciji tunela čini Mio-Plioceni kompleks heterogenog litološkog sastava. Izgradnja tunela je predviđena delom u otvorenom iskopu dužine 240 m, a delom sa podzemnim iskopom dužine 190 m. U zoni tunela, padina je okarakterisana kao uslovno stabilna, pa bi neadekvatna zasecanja mogla da izazovu klizanja terena. Iz tih razloga, u okviru rada posebno su prikazani geotehnički uslovi izgradnje ...
    Tunel „Debelo brdo“, Geotehnički parametri, Privremene kosine, Šipovi, Podgrada.
    ... putevima, Beograd, str. 12-23. [6] ; ; J (2019). Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia Proceedings of the XVII European Conference of Soil Mechanics and Geotechnical Engineering ECSMGE-2019, Geotechnical Engineering foundation of the future, Reykjavik ...
    ... of the terrain. For these reasons, the paper presents separately the geotechnical conditions for the construction of the tunnel in open excavation (temporary excavation securing by installing piles is provided), and the geotechnical conditions for tunnel excavation with a partially modified model in ...
    ... prikazani izgradnje tunela u otvorenom iskopu ( je projektno : Tunel Debelo brdo G parametri, Privremene kosine, ipovi, Podgrada. GEOTECHNICAL CONDITIONS FOR THE CONSTRUCTION OF ON THE HIGHWAY E- - 1, 2 Ikodinovi 3, 4 1 University of Belgrade Faculty of Mining and Geology, Djusin ...

  • Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone

    Emő Márton, Marinko Toljić, Vesna Cvetkov (2022)
    The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...
    Adria–Europe suture, Vardar Zone, Paleomagnetism, Thrusting, Vertical axis rotation

  • Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове

    Јелка Крушић (2023)
    Тецишта су комплексне појаве нестабилности које захтјевају истраживања и испитивањакоја до сада нису рађена код нас у области геотехнике. По механизму, начину активирањаи понашању покренутог материјала се знатно разликују од клизишта. Циљ оведисертације је била примјена нумеричких модела пропагације тецишта на примјеру двијепојаве које су се десиле у Србији као посљедица дјеловања циклона Тамара. Детаљноистраживање тецишта подразумијева теренско картирање, теренска истраживања илабораторијска испитивања одабраних узорака са терена. Од теренских истраживања напримјеру тецишта Селанац урађена су геофизичка истраживања Електричнетомографије док ...
    тециште, нумерички модели пропагације, циклон Тамара, геофизичка истраживања, лабораторијска испитивања, Селанац, Лева река, RAMMS, SPH geoflow, реолошки модел

  • Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu (2020)
    Geochemistry and Petrology

  • Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics

    Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić (2024)
    Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...
    Lecki vulkanski kompleks, andeyit, kalcedon, kvarc, opal-CT, mikrostruktura, organska materija

  • Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer

    Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)
    ... "iarosiav Cerni", Document of MinistrY of Agrlculture Forest and Wateq Belgrade. 7 Soro, A., Dimki6, M. and |osiPovi6, ]' (1997) Hydrogeological investigations related to water supply in Vojvodina, in 1 00 Years of Hyd'rogeology in Yugoslavia, voI.2 (ed. Z. Stevanovi6), FMG, Belgrade, pp. 1.01-112 ...

  • Surface functional groups and degree of carbonization of selected chars from different processes and feedstock

    Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)
    The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...
    Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS
    ... carbon as a sink in the global carbon cycle due to its recalcitrance [9,37]. Experiments on laboratory [38] and field scale [39- 42| as well as investigations on soils containing pyrogenic carbon [4] show in many cases an improvement of soil characteristics, but also opposite results for a considerable ...
    ... different feedstock using different processes. Four different samples were taken from the stock material of each of the seven bio- chars for the investigations in Belgrade (SEM, XRD, FT-IR, Raman, titrations), the chemical analyses, XPS, and SIP in Julich. Subsamples were taken from these samples for ...
    ... KBr, Na,H- POu·12H5O, NaOH, HCI used in this work were p.a. grade from Merck, Darmstadt, Germany. Methods Scanning electron microscopy. Investigations on the morphology of the chars were car- ried out with a Jeol JSM-840A (Jeol, Akishima, Tokio, Japan) scanning electron microscope. 'The samples ...

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    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 ...
    hybrid systems, mine ventilation, expert systems
    ... separate components. The first phase of the outlined methodology is data acquisition. In contemporary mining practice extensive and exhaustive investigations of ore deposits are undertaken in order to collect as much information as possible for the planing and design of technological systems for deposit ...

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    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 ...
    ... separate components. The first phase of the outlined methodology is data acquisition. In contemporary mining practice extensive and exhaustive investigations of ore deposits are undertaken in order to collect as much information as possible for the planing and design of technological systems for deposit ...

  • Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“

    Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић (2024)
    Prizma, REASONING, Rudnik, jalovina, Fond za nauku Republike Srbije

  • Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji

    Dragoslav Rakić (2013-05-10)
    U disertaciji su prikazani rezultati laboratorijskih ispitivanja uzoraka komunalnogotpada dobijeni u aparatima za direktno smicanje i edometarskim aparatima (jedanedometarski aparat konstruisan je za potrebe ove disertacije). Sva ispitivanja su izvršenana veštački pripremljenim uzorcima, uz uvažavanje preporuka koje se odnose nadimenzije korišćenih aparata i veličinu najvećih frakcija u uzorku (EN 1997-2, ASTM2007-a, 2007-b). Za formiranje uzoraka korišćen je komunalni otpad različite starosti,uzet sa dve deponije u Srbiji (Ade Huje u Beogradu i gradske deponije u Novom Sadu).Interpretacija rezultata dobijenih iz ...
    komunalni otpad, deponija, geotehnička klasifikacija, čvrstoća smicanja,deformabilnost, indeks primarne kompresije, indeks sekundarne kompresije, modelisleganja
    ... waste, Canadian Geotechnical Journal, 37(No. 6), 1157-1165. Langer, U. (2005). Shear and Compression Behaviour of Undegraded Municipal Solid Waste, Doctoral Thesis at Loughborough University, 292. Langer, U., Dixon, N., Gotteland, P. & Gourc, J.P. (2005). Waste mechanics: investigations using synthetic ...
    ... otpad, Udruženje za tehnologiju vode i sanitarno inženjerstvo, Zlatibor, B 180-184. Rakić, D., Lazić, M. & Stojadinović, D. (2006). Geotechnical investigations of different geological landscapes for the purposes of remediation of municipal landfill sites, IAEG 2006, Nottingham, p.n. 701, DVD. ...
    ... solid waste landfill settlement: postclosure perspectives, Journal of Geotechnical and Geoinveronmental Engineering, Vol. 133, No. 6, 619-629. Siegel, R.A., Robertson, R.J. & Anderson, D.G. (1990). Slope stability investigations at a landfill in southern California, American Society for Testing and ...

  • Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia

    Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin (2013)