198 research outputs found
Usage of Empirical-Statical-Dynamical (ESD) method for data extrapolation in Tunnel Construction
No full textThis article describes a methodology that shows how it is possible to integrate all these approaches in a problem for extrapolation of the parameters for hydrotechical tunnels. During the design process for tunnels in hydrotechics, one of the main problems is how to extrapolate the deformability and shear strentgh rock mass parameters from the zone of testing to the whole area (volume) of interes for interaction analyses between structure abd natural environments. Computers development in recent decades has contributed to the development of numerical calculation method in rock mechanics which enabled new and wider possibilities of stress and deformation calculation. This had significantly stimulated the development of rock mechanics and tunneling as scientific and technical discipline as well as the wider application of research results into practice
Analysis of stress-deformation state in the rock massif using Z-SOIL program
No full textThe Rock Mass and artificial constructions, during the changes of the stress-strain conditions are involved in specific types of interactions. The case explained in the article is a very specific, having in mind the closely spaced arch dam and existing intake tunnel. In order to insure the data for analyses, it is necessary to define the reliable constitutional model or analyses. According to the authors opinion, the combination of discontinual Rock Mass models and models for analyzing of quasi-continual media is a prerequisite for successful design and construction
Zlatko Bourek’s Bećarac – A Monument to Ourselves
No full textBourekov tretman glumca kao lutke, odnosno kao žive figure, predstavljen je na primjeru predstave Bećarac iz 1998. godine u kojoj se Bourek predstavlja kao autor koncepta, kao likovnjak i kao redatelj te glumačko kazalište pretvara, upravo likovnom dramaturgijom, u teatar figura – teatar nakaza. Primjer je to Bourekove predstave s ljudima, ali i predstave u kojoj se umjetnikova dramaturgija ukupne vizualnosti, od promišljenog i simbolima nabijenog oblikovanja sveukupne likovnosti komada i mizanscena do scenskog pokreta, rukovodi upravo lutkarskim načinom razmišljanja, no u velikim razmjerima igranoga glumačkog teatra.
Bećarac (1998.), koji prema idejnoj koncepciji Zlatka Boureka i Sanje Ivić na veliku pozornicu Hrvatskoga narodnog kazališta u Osijeku dovodi tipske maske slavonskog folklora, vrhunski je primjer intrinzičnog kreativnog nagona Zlatka Boureka, njegove majstorske figuracije i stilizacije kojom žive glumce, tretirajući ih poput figura ili lutaka u prirodnoj veličini, izjednačava s idealom Craigova idola, nadmarionete. Predstava je, poput scenskog oživotvorenja umjetnikove neiscrpne životne i kreativne energije, Bourekov spomenik narodu i duhu Slavonije, ali i sebi samom.Bourek’s way of treating actors as puppets or as live figures has been presented using the example of the play entitled Bećarac (1998), in which Bourek, as author of the concept, visual artist and director, transformed the acting theatre – or the very visual dramaturgy thereof – into the theatre of figures or the theatre of freaks. It is an example of Bourek’s performance with people, but also of a play in which the artist’s dramaturgy of the overall visual character – from the well thought-through and richly symbolic shaping of the overall visual quality of the piece itself and mise-en-scène to stage movement – follows the way of thinking characteristic for puppetry, however in the grand proportions of the acting theatre.
Bećarac (1998), conceived and created by Zlatko Bourek and Sanja Ivić, brought to the grand stage of the Croatian National Theatre in Osijek typical masks from the Slavonian folklore. It is a paramount example of Zlatko Bourek’s intrinsic creative instinct, and his masterful figuration and stylisation, by the means of which he put living actors, treating them as life-size figures or puppets, on an even footing with the ideal of Craig’s idol – the super-puppet. The performance – staging of the artist’s inexhaustible life and creative energy – represents Bourek’s monument not only to the people and the spirit of Slavonia, but to himself too
The Destiny of Zlatko Tomičić as a Participant of the cxroatian Spring and his travelogue Prose
No full textThis work studies fourteen travelogue collections by Zlatko Tomičić who was isolated from public literary life for a long period of time due to his participation in the movement called Croatian spring. His literary work was forbidden to be published. The stylistic and contentual analysis of the characteristics of Tomičić’s work indicates that the author’s ideas have completely opposite meanings from the political labels engrafted upon him.
Within the Croatian travelogue prose, Zlatko Tomičić creates his recognisable structure of travelogues which represents a peculiar genre-bastard. Tomičić’s travelogue contains a wicker of different literary genres, and interweaves the form of the travelogue with elements of memoirs, literary essays, feuilletons, documentary structures, philosophic discourses, historical descriptions, legends and poetic expressions. We can conclude that all later travelogues written by Tomičić reflect a special spiritual capacity of accepting past times and sources of ancient cultures, which the author experiences as burdened mythical places from which the energy of past times emerges and reveals the meaning of the mythical cognition of the past. An important constant in Tomičić’s travelogue is the aspiration for polyphonic and polyhistoric models of experiencing the world. His rich narrative technique of interwoven associative comparative jumps (civilisational traces of different historical nations within Croatia and traces of Croatian cultural dwellers and artists in other countries) gives us a mosaic of connections between people and nations, as well as the richness of a spiritually spread poetic consciousness whose spiritual artistic cognition does not know the borders of real social-political barriers. In his best travelogues the author reaches the epiphanic moment of the declaration of humanistic connection with various positive civilisational heritages; and his work shows that a valuable literary thought cannot be permanently stopped by political repression and prohibition of publishing
EVALUACIJA STOPA DEGRADACIJE ŽELEZNIČKOG KOLOSEKA NA OSNOVU TRENDOVA TQI: STUDIJA SLUČAJA DEONICE KOLAŠIN–PODGORICA
No full textUnderstanding the rate of track degradation is essential for effective railway infrastructure management, particularly in mountainous and geotechnically unstable regions. This paper presents a comprehensive analysis of the track geometry degradation on the Kolašin–Podgorica railway section in Montenegro, using the Track Quality Index (TQI) as the primary indicator. TQI values from three consecutive inspection periods (2017–2019, 2019–2022, and 2022–2024) were analyzed to compute degradation rates (ΔTQI) across all track segments. The results were visualized through spatially distributed line graphs, enabling the identification of segments with progressive geometric deterioration.The analysis reveals a recurring pattern: several sections demonstrate improvement following tamping interventions, yet degrade again within a short period, indicating deeper structural or geotechnical issues. Particular attention is given to sections located on bridges, in tunnels, and near stations—areas associated with increased dynamic loads and limited substructure resilience. An overlay of maintenance data and structural object locations further strengthens the causal interpretation.The findings support the prioritization of high-risk segments for targeted interventions beyond routine maintenance. This degradation-based evaluation framework contributes to data-driven decision-making for long-term railway asset management, combining infrastructure condition assessment with spatial engineering analytics.Razumevanje brzine degradacije koloseka je od suštinskog značaja za efikasno upravljanje železničkom infrastrukturom, posebno u planinskim i geotehnički nestabilnim područjima. U ovom radu predstavljena je sveobuhvatna analiza degradacije geometrije koloseka na deonici Kolašin–Podgorica u Crnoj Gori, koristeći Indeks kvaliteta koloseka (TQI) kao primarni pokazatelj. Vrednosti TQI izmerene u tri uzastopna perioda inspekcije (2017–2019, 2019–2022 i 2022–2024) analizirane su za izračunavanje stopa degradacije (ΔTQI) duž svih sekcija pruge. Rezultati su vizualizovani prostorno distribuiranim grafikom, omogućavajući identifikaciju delova pruge sa progresivnim geometrijskim narušavanjem.Analiza otkriva ponavljajući obrazac: nekoliko sekcija pokazuje poboljšanje nakon intervencija podbivanja, ali se u kratkom roku ponovo javlja degradacija, što ukazuje na dublje strukturne ili geotehničke probleme. Posebna pažnja posvećena je sekcijama smeštenim na mostovima, u tunelima i u blizini stanica — područjima povezanim sa pojačanim dinamičkim opterećenjima i ograničenom otpornošću potkrovnog stroja. Preklapanje podataka o održavanju i lokacijama objekata još više ojačava uzročnu interpretaciju.Dobijeni nalazi podržavaju prioritizaciju visokorizičnih sekcija za ciljane intervencije koje prevazilaze redovno održavanje. Ovaj okvir za procenu zasnovan na degradaciji doprinosi donošenju odluka zasnovanih na podacima za dugoročno upravljanje železničkom imovinom, kombinujući procenu stanja infrastrukture sa prostornom inženjerskom analizom
Zlatko Bourek – Once Upon a Time There Was Sculpture
No full textFigurativni repertoar i imaginarij Zlatka Boureka (1929. – 1918.) iznimno je kompleksan segment hrvatskoga stvaralaštva likovnih, primijenjenih i kazališnih umjetnosti te animiranoga filma. Njegov kreativni rukopis odlikovao je prepoznatljiv sardonični, hedonistički i groteskni karakter upotpunjen specifičnom mogućnošću naracije fantastičnih i erotskih sadržaja te trajnom fascinacijom rodnim krajem – Slavonijom. Za razumijevanje tog opusa i rukopisa valja uzeti u obzir kako je autor često volio istaknuti da nije pismen nego rismen. Bourekova široka likovna erudicija počiva na poznavanju klasične tradicije plastike, počela japanskoga teatra lutaka, njemačkog ekspresionističkog slikarstva i grafike, a iznimno su mu bliske poetike koje su odredile Neue Sachlichkeit, metafizičko slikarstvo, moderno talijansko kiparstvo i nadrealizam. Skulptura, to jest razmišljanje o skulpturi, animiranje volumena (animirani film), stavljanje u pokret (lutkarsko kazalište), trajno je odredila Bourekovo kreativno razmišljanje i interese. U tom smislu izlaganje će razmotriti genezu kiparstva Zlatka Boureka i njegovo koreliranje s drugim medijima u kojima je ostvario velik doprinos.The figurative repertoire and imaginarium of Zlatko Bourek (1929–1918) represents an exceptionally complex segment of the Croatian visual and applied arts, theatre and animated film. His creative manuscript was of a recognisable sardonic, hedonistic and grotesque character, supplemented by a specific narrative of fantastic and erotic nature, as well as by lasting fascination with his native Slavonia. In order to comprehend his oeuvre and manuscript, it ought to be taken into account the fact – as the author himself frequently stressed – that he could only draw, not write. Bourek’s learnedness in visual arts rests upon his mastering the classic tradition of sculpture, the principles of the Japanese puppet theatre, and the German expressionist painting and print art. He felt a particular closeness to the poetics that had defined the Neue Sachlichkeit, metaphysical painting, modern Italian sculpture and surrealism. Sculpture or rather the rethinking thereof, animation of volume (animated film), and putting in motion (puppet theatre) – permanently determined Bourek’s creative thinking and interests. In this sense, the speech will offer an analysis of the genesis of Zlatko Bourek’s sculpture and his correlation with other media, in which his contribution is remarkable as well
EVALUATION OF RAILWAY TRACK DEGRADATION RATE BASED ON TQI TRENDS: A CASE STUDY OF THE KOLASIN–PODGORICA SECTION
No full textUnderstanding the rate of track degradation is essential for effective railway infrastructure management, particularly in mountainous and geotechnically unstable regions. This paper presents a comprehensive analysis of the track geometry degradation on the Kolašin–Podgorica railway section in Montenegro, using the Track Quality Index (TQI) as the primary indicator. TQI values from three consecutive inspection periods (2017–2019, 2019–2022, and 2022–2024) were analyzed to compute degradation rates (ΔTQI) across all track segments. The results were visualized through spatially distributed line graphs, enabling the identification of segments with progressive geometric deterioration.
The analysis reveals a recurring pattern: several sections demonstrate improvement following tamping interventions, yet degrade again within a short period, indicating deeper structural or geotechnical issues. Particular attention is given to sections located on bridges, in tunnels, and near stations—areas associated with increased dynamic loads and limited substructure resilience. An overlay of maintenance data and structural object locations further strengthens the causal interpretation.
The findings support the prioritization of high-risk segments for targeted interventions beyond routine maintenance. This degradation-based evaluation framework contributes to data-driven decision-making for long-term railway asset management, combining infrastructure condition assessment with spatial engineering analytics
PRISTUP DEFINISANJU GRANIČNE VREDNOSTI ZAUSTAVNOG VIDNOG RASTOJANJA NA PUTEVIMA U REPUBLICI SEVERNOJ MAKEDONIJI
No full textThe most of the existing road network in the Republic of North Macedonia consists of sections that in the past were designed to provide the most durable and permanent engineering solutions of the carriageway, with minimal commitment to the road geometry. The visibility on the road is a key condition that would significantly contribute to better driving dynamics as well as to road safety. An analysis of Stopping Sight Distance (SSD) on all main roads was conducted within the paper. The visibility is checked simultaneously, through video recordings and CAD drawings, and is recorded tabularly by sections. In the analysis, checks are treated in two projections with additional subtypes: Horizontal solution (open route and intersections) and vertical solution (for convex and concave curves). The obtained values are quantified according to the length of each section, thus determining the individual sizes for each type. According to the resulting diagram of all the sections and the range from minimum to maximum, an economically acceptable visibility limit is defined through which all existing and future roads are weighted and it is defined whether they have a satisfactory visibility or not.Veći deo postojeće putne mreže u Republici Severnoj Makedoniji sastoji se od deonica koje su u prošlosti projektovane da pruže najdugotrajnija i najstabilnija inženjerska rešenja za kolovoz, sa minimalnim akcentom na geometriju puta. Vidljivost na putu je ključni uslov koji značajno doprinosi boljoj dinamici vožnje kao i bezbednosti saobraćaja. U okviru rada sprovedena je analiza zaustavnog vidnog rastojanja (Stopping Sight Distance - SSD) na svim magistralnim putevima. Vidljivost je istovremeno proverena putem video snimaka i CAD crteža, a podaci su tabelarno zabeleženi po deonicama. U analizi su provere tretirane u dve projekcije sa dodatnim podtipovima: horizontalno rešenje (otvorene trase i raskrsnice) i vertikalno rešenje (za konveksne i konkavne krivine). Dobijene vrednosti su kvantifikovane prema dužini svake deonice, čime su određene pojedinačne veličine za svaki tip. Prema rezultujućem dijagramu svih deonica i rasponu od minimalne do maksimalne vrednosti, definisana je ekonomski prihvatljiva granična vrednost vidljivosti na osnovu koje se vrednuju svi postojeći i budući putevi, kako bi se utvrdilo da li imaju zadovoljavajuću vidljivost ili ne
LONGITUDINAL DATA FOR MODELING URBAN MOBILITY ON LONG TERM
No full textThe usage of longitudinal data for modelling urban mobility is crucial when the analysis and forecast model would consider temporal modifications of behaviour of population in studied urban area. This paper treats the modelling and forecast of urban mobility on long term based on pseudo-longitudinal data. The analysis and investigated data are related to the urban area Lille in France. The examined data are carried out in 1976, 1987 and 1998, according to the standard methodology for mobility survey of households in France. The longitudinal data are made from repetitive surveys which makes possible to get insight in the behaviour dynamics. The decomposition of temporal effects into an effect of age and an effect of generation (cohort) makes possible to draw the sample profile during the life cycle and to estimate its temporal deformations. This is the origin of the “age-cohort” model for forecasting of urban mobility on long term
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