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Упит dcterms_subject_txt:geotechnical investigations

208 items

  • More than 500 Ma of magmatic and tectonic evolution of the Serbo-Macedonian Massif (south Serbia, southwest Bulgaria and east Macedonia)

    Antić Milorad, Peytcheva Irena, von Quadt Albrecht, Kounov Alexandre, Trivic Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko (2012)

  • Attenuation of Bacteriological Contaminants in Karstic Siphons and Relative Barrier Purifiers: Case Examples from Carpathian Karst in Serbia

    L. Vasić, Z. Stevanović, S. Milanović, B. Petrović (2015)

  • Upper Cretaceous scaglia type limestone from Klepa Mts. (North Macedonia) - sedimentology and biostratigraphy

    Violeta Gajić, Milena Dunčić, Ana Mladenović, Dejan Prelević (2024)
    The research area is located in the central part of North Macedonia, in the area of the Klepa Mts. Based on sedimentological, micropaleontological and biostratigraphical investigations of samples from both the east and west side of the Klepa Mts., sedimentary rocks of the Upper Creaceous age are determined. During the latest Cretaceous, this area was dominated by the sedimentation of dominantly carbonate rocks with variable amounts of clastic components. From the tectonic point of view, investigated area belongs to the ...

  • New LA-ICP-MS U/Pb zircon data on various granitoids from the European side of the Tethyan Mesozoic suture

    Šarić Kristina, Erić Suzana, Peytcheva Irena, Radivojević Maša, von Quadt Albrecht, Cvetković Vladica (2012)

  • Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... Hz are applied in elastic properties investigations of different materials, both in laboratories and „in situ“ conditions. At the end of the seventies in the last century for rock samples investigation (borehole core, blocks, etc.) as for field investigations, Mining department of the Faculty of Mining ...
    ... measured longitudinal elastic waves propagation velocities in order to determine presence of anisotropy on the two types of rock samples. The investigations implied calculation of quantitative indicators of anisotropy. In order to decrease uncertainty related to external infuencing on devices, we ...
    ... of quantitative indicators of anisotropy is presented in Section 4. Section 5 illustrates obtained results and discussions in relation to our investigations represented at Figures 1-6. Also, brief description of statistical analysis is shown in this section. Finally, Section 6 explains the conclusion ...

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija

  • Geomechnical research for the new bucket wheel excavator testing at Open pit “Filijala”

    Vladimir Čebašek, Nebojša Gojković, Veljko Rupar, Miodrag Pribićević (2020)
    Since 1976 cement marl excavation at open-pit mine „Filijala” is carried out by continuous exploitation technology using bucket wheel excavator SH 400 manufactured by Orenstein und Koppel (O & K) company. Due to the bucket wheel excavator time-worn and high operating cost it was necessary to replace it with new one. In order to test the new bucket wheel excavator and prove its capacity a testing zone was defined as test block for excavation, in which the bucket wheel ...
    отпор на копање, лапорац, роторни багер

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... Belgrade, the capital of Serbia. Extensive geotechnical investigations and monitoring activities were conducted during several field campaigns in wider area during 1970–2006 (Vujanić et al. 1995; Mitrović and Jelisavac 2006). Most of the geotechnical investigations were performed for the Preliminary and ...
    ... renovac Highway (E-763), and for the Umka urban plans and regulations. A summary of the geotechnical investigations results until 1995 can be found in Ćorić et al. (1996), while the summary of investigations and monitoring results until 2005 can be found in Mitrović and Jelisavac (2006). Geometry ...
    ... landslide were well defined by previous geotechnical investigations. This landslide is fan-shaped, with the length along the slope of 900, 1650 m wide in the toe, reaching maximum depth of sliding surface at 26 m, and average slope gradient of 9°. Previous geotechnical research has shown that Umka landslide ...

  • Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке

    Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић (2018)
    ... by this method). In some cases, modern metal residues pose a  major problem in magnetic investigations, while sometimes, if they are the goal of the research, this is a  great advantage.  Magnetic investigations of archaeological sites can be carried out in two ways. The first, in which  the total  ...
    ... relatively short time.  The archaeological site of Kremenite njive  is  located  in  the settlement Barajevo near Belgrade  (Serbia). Applied magnetic investigations were supposed to provide information on the dimensions and  most probable depths on which archaeological objects are  located, whose presence  ...
    ... atural remanent magne‐ tization of black brick sample is 1.818∙10‐7 T, and black brick with orange inclusions is 66.02∙10‐7 T.  Magnetic  investigations were carried out on two occasions  in 2012 and 2013  (Vasiljević, 2013)  with  the GSM‐19 Overhauser gradiometer  (GEM Systems  Inc. Canada, Ontario) ...

  • Correlation of uniaxial compressive strength with the dynamic elastic modulus, p –wave velocity and s –wave velocity of different rock types

    Jelena Majstorović, Miloš Gligorić, Suzana Lutovac, Milanka Negovanović, Luka Crnogorac (2019)
    Knowing mechanical properties of rocks incorporated with ultrasonic waves velocities investigations provide a secure basis for mine modelling. Uniaxial compressive strength, dynamic elastic modulus and ultrasonic waves velocities are just some of the rock properties that indicate on presence of discontinuities, stratification and fissures of rocks. Determining the relationship of these rock properties testing the rock samples that are corresponding to different rock types extracted from different mineral deposits represents the core of this study. In this paper, we ...
    линеарна регресија, метода најмањих квадрата, динамички модул еластиности, брзина уздужних таласа

  • Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations

    Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković (2021)
    The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...
    severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija
    ... rp.72.5.3 www.geologicacarpathica.com Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations UROS STOJADINOVIC1, , NEMANJA KRSTEKANIĆ1, 2, BOJAN KOSTIĆ1, MARIJA RUŽIĆ1 and ALEKSA LUKOVIĆ1 1University of Belgrade, Faculty of Mining ...
    ... calc-alkaline magmatism of the Apuseni–Banat–Timok–Sredna Gora (ABTS) belt (Gallhofer et. al. 2015). Recent thermochronological and kinematic investigations indicate that the Late Cretaceous extension also resulted in exhumation of medium-grade meta- morphic rocks in the central parts of the Serbo ...
    ... to 450°C at most), while pressure is estimated at around 0.3 GPa. Interpretation and discussion The results of our kinematic and petrological investigations infer sharp transition between the medium-grade Serbo- Macedonian gneisses in the footwall and low-grade green- schists of the Supragetic Unit ...

  • Mathematical modeling to define catchment size and real evapotranspiration (case study: Andrića karst spring, Western Serbia)

    Marina Čokorilo Ilić, Vesna Ristić Vakanjac, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Bojan Hajdin (2018)
    Water resources in karst are extremely important sources of drinking water supply. The quality of groundwater formed in karst aquifers is generally high and in most cases only chlorination is required. However, from a hydrogeological perspective, these water resources are the least studied. Often only basic information is available on catchment size, groundwater reserves (dynamic and static, if any) and groundwater balance. Detailed hydrogeological investigations and long-term monitoring of karst spring discharges are needed to acquire such information. In ...
    karstno vrelo, veličina sliva, stvarna evapotranspiracija, karstno vrelo Andrića

  • The shear strength evaluation of rough and infilled joints and its indications for stability of rock cutting in schist rock mass

    Dušan Berisavljević, Zoran Berisavljević, Svetlana Melentijević (2022)
    Construction of E75 highway section through Grdelica gorge was one of the most demanding projects realized in recent Serbian history. The alignment approximately 25 km long consists of several tens of bridges, two tunnels, three galleries and cuts with total length of 6 km. The alignment passes through highly anisotropic Palaeozoic schist rock formation of different weathering grades. This study focuses on shear strength properties of discontinuities, which are found to be the critical feature contributing to the occurrence ...
    Diskontinuitet, nelinearni kriterijum loma, anizotropija, hiperbolična anvelopa

  • A contribution to the understanding of the discharge dynamics and water balance of the karst spring Gornji Dušnik (Suva Planina)

    Aleksandar Tanasković, Vesna Ristić Vakanjac, Dušan Polomčić, Jelena Ratković (2023)
    A sufficiently long time-series of daily discharges is needed to assess the discharge dynamics and calculate the water balance equation parameters of a spring (river source). The paper assumes that a catchment is gauged if a time-series of observations of at least 30 years is available, which is a rare case in Serbia. One-year monitoring is often set up to verify the reserves of a water source or spring intended for capture. Monitoring ceases after the final report is ...
    discharge dynamics, water balance, catchment area, karst spring Gornji Dušnik, Suva Planina

  • Is the Sava-Vardar zone a remnant of an Upper Cretaceous ocen? Pro et contra

    Vladica Cvetković, Dejan Prelević, Ana Mladenović (2024)
    Neotethys, ocean closure, subduction
    ... andesite rock seriecs (ncar Belgrade and in boreholes in Bačka and Banat). 2) Comprehensive results of zircon provenance studies included the investigations . of the metamorphic basement and Cretaceous SVZ sediments. We have identified Neoproterozoic (Cadomian) and Silurian-Ordovician (+Devonian) ...
    ... that the SVZ originated at the ocean floor as an Upper Cretaceous ophiolite. On the other hand, the indirect evidence remains, and further investigations. must „address the possibility that the ABTS belt could have originated in a post-collisional setting. ACKNOWLEDGEMENT This research is supported ...

  • Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?

    Стефан Петровић, Наталија Батоћанин (2020)
    У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...
    Рудник, Брђани, харцбургити, серпентинити, талк
    ... serpentinization were discussed and postulated. MATERIALS AND METHODS This paper discusses results from both the field and the laboratory investigations. During field work representative samples were taken. Four samples were taken from the drilled borehole from Rudnik (interval 480-498 m) and ...
    ... locality Brđani. The laboratory examinations included: - Determination of mineral composition and fabric in selected samples by the optical investigations under the Leica DMLSP petrographic microscope, which is connected with the digital camera Leica DC 300 over the program LAS V4.1; - The chemical ...
    ... 5 °/min. The crystal phases were identified in dedicated Rigaku PDXL 2.0 software (with implemented ICCD PDF-2 2016 database). 24 All investigations were performed at the Department of Mineralogy, Crystallography, Petrology and Geochemistry at the Faculty of Mining and Geology, University ...

  • Оцјена водопропусности понорске зоне Шуковићу (Цернићко поље) помоћу Лижоновог теста

    Петар Војновић, Саша Милановић, Љиљана Васић (2022)
    One of the specificities of reservoirs forming in highly karstified terrains is reflected in the wide range of unknowns, specifically during reservoir formation, filling and operation. Unfortunately, despite complex research, many reservoirs constructed in karst terrains have problems with water losses from the reservoir to other aquifers due to ponor and ponor zones which are a common in the karst of Eastern Herzegovina. One of such zones is Šuković ponor located in the southern part of the Cerničko polje ...
    карст, Шуковића понор, Церничко поље, водопропусност, Лижонов тест

  • Filling of dolines with aeolian sediments in the high-mountain karst of the Dinarides (Mt. Durmitor, Montenegro)

    Mirela Djurović, Violeta Gajić, Predrag Djurović (2022)
    Filling of dolines with aeolian sediments, one of the less frequently described ways in which they are filled, is analysed in the present study on an example of a doline in the high-mountain karst of the Dinarides. There is a series of deep dolines on a broad ridge (about 2450 m a.s.l.) on Mt. Durmitor (Montenegro) in the southeastern part of the Dinarides. The accumulation of very fine-grained sand that almost completely fills one of the dolines was analysed. ...
    Doline, Zapuna, Eolski sedimenti, Karst, Dinaridi, Crna Gora

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...
    municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science
    ... municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different ...
    ... municipal waste and soil, for the determination of unit weighh usually used laboratory and field tests are those that are common in geotechnical investigations such as: direc field measurements (excavation of exploration pit at the landfili with measurement of volume and weight of excavated ...
    ... waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which arec common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore ...

  • Permanent GNSS monitoring of landslide Umka

    Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović (2020)
    Клизиште Умка је једно од највећих насељених активних клизишта у Србији. Активност клизишта Умка се прати већ више од 85 година, различитим геотехничким и геодетским техникама. Од 2010. године, активност kлизишта се континуирано прати у реалном времену аутоматизованим перманентним системом за праћење базираним на Глобалним навигационим сателитским системима (ГНСС). Поред тога, од 2018. године активност клизишта се додатно прати кинематичким ГНСС одређивањем положаја скупа карактеристичних тачака као и применом UAV фотограметрије. Главни циљ овог рада је приказ резултата опажања три ...
    клизиште, перманентно праћење, ГНСС
    ... surface of 26 m [1]. The derived results of geotechnical investigations of the Umka landslide were published by many authors and some of them are Vujanić et. al. [13,14], Ćorić et. al. [15], Jelisavac et. al. [16]. In addition to geotechnical investigations, the dynamics of Umka landslide was investigated ...
    ... monitored by different geotechnical and geodetic techniques for decades. 93 PROCEEDINGS OF INTERNATIONAL CONFERENCE ON CONTEMPORARY THEORY AND PRACTICE IN CONSTRUCTION XIV PERMANENT GNSS MONITORING OF LANDSLIDE UMKA According to geotechnical investigations at 2005 by the Highway Institute ...
    ... Jelisavac, “Geotechnical characteristics of old landslides in Belgrade area”, In: K. Senneset, Ed. in Proc. of the 7th International symposium on landslides, 1996, Vol 2, Balkema, Rotterdam, pp 689–694 [16] B. Jelisavac, S. Milenković, V. Vujanić and P. Mitrović, “Geotechnical investigations and repair ...