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1.
Interpolacija v stavbni strukturi
Dario Dogša, 2018, magistrsko delo/naloga

Opis: Interpolacija v stavbni strukturi je magistrsko delo, ki zaključuje in dopolnjuje karejsko zazidavo v centru mesta Maribor. Obravnavana lokacija se trenutno izkorišča kot parkini prostor, ki je zamejen na vzhodu s stavbo in dvoriščem Mestne občine Maribor, na severu in zahodu s stanovanjskimi stavbami, medtem ko se južna meja lokacije odpira na Trg generala Maista in stari center mesta. Lokacija ima zelo velik potencial za uspostavitev stanovanjske gradnje saj se v ospredju in ozadju nahajajo parkovne površine, hkrati so tudi v bližini različne storitve - upravne, izobraževalne, gostinske in trgovske. Zasnova projekta vsebuje stanovanjsko dejavnost, ki v parterju prehaja v javni prostor druženja in ustvarja komunikacijo med mestnim utripom in umirjenim dvoriščem. Z arhitekturno podobo se prilagajamo in poudarjamo dodane vsebine centru mesta, ki koketirajo s historicističnim okoljem.
Ključne besede: arhitektura, interpolacija, stanovanjska stavba, bivanje, Maribor
Objavljeno: 17.10.2018; Ogledov: 24; Prenosov: 7
.pdf Celotno besedilo (92,54 MB)

2.
Idejna zasnova nove glasbene šole v lendavi
Gregor Vida, 2018, magistrsko delo

Opis: V magistrski nalogi obravnavam temo s področja glasbenega in baletnega izobraževanja. Projektna naloga je podkrepljena s teoretičnimi izhodišči, vezanimi na glasbeno izobraževanje, akustiko, študijami referenčnih primerov in prostorskim kontekstom. V nalogi tako predstavim prostorski problem glasbenega izobraževanje v Lendavi ter na podlagi analiz predlagam lokacijo za novo glasbeno šolo. Umestitev nove glasbene šole, poleg prostorske problematike, rešuje tudi nedefiniran, neprimerno oblikovan, vendar kvaliteten odprt prostor v mestnem središču. Nova glasbena šola je umeščena v ožje mestno jedro, nasproti kulturnega doma in v neposredni bližini sinagoge. Med temi tremi kulturno-izobraževalnimi ustanovami se ustvari nov trg, katerega le- te definirajo in bogatijo s programom. Zahodni rob trga definira daljša nadstrešnica, ki služi izvajanju najrazličnejših programov – tržnice, kulinaričnih dogodkov, sejmov, prireditev. Središče mesta Lendave s tem pridobi novo kulturno središče, ki je arhitekturno, urbanistično in družbeno izpopolnjeno – prostor, vreden zadrževanja in ne samo prehajanja. Predlagana celostna rešitev za območje ob Župančičevi ulici bo tako pripomogla k revitalizaciji mestnega središča Lendave ter prebivalcem omogočila predvsem kakovostni javni prostor in nenazadnje tudi dostojen prostor za učenje glasbe in baleta.
Ključne besede: Lendava, glasbena šola, glasba, balet, arhitektura
Objavljeno: 12.10.2018; Ogledov: 84; Prenosov: 25
.pdf Celotno besedilo (81,65 MB)

3.
Zasnova ski hotela vogel z žičnico
Anže Repinc, 2018, magistrsko delo

Opis: Alpe so prostor, ki že stoletja privabljajo mnogo turistov in domačinov. Predvsem jih navduši neokrnjena narava, mogočne visoke gore, biotska raznovrstnost, ledeno hladne reke in jezera in zelene doline. Ta del predstavlja narava. Seveda tak prostor ni ostal nedotaknjen, ljudje so si na tem mestu gradili vasi na način, ki je trdno povezan z naravo, ki jih obdaja. S spoštovanjem do tistega, kar naj bi jim bilo podarjeno, so si zgradili bivališča previdno in preudarno. Vsaka nepravilna poteza v prostoru bi lahko škodila naravi ter posledično domačinom samim. Bohinj je eden izmed predstavnikov tovrstnih pokrajin. Kljub vplivu industrializacije in kulture hitro rastočih mest zaenkrat še ohranja svojo identiteto gručastih naselij in vijugaste ceste, ki vodi skozi pokrajini. Vendar pa prostor ne prenese velikih posegov in pretiravanja. Kar hitro bi se lahko zgodilo, da bi ljudje želeli narediti preveč in s tem popolnoma uničili podobo in razčlenjenost vasi v Bohinju. Magistrsko delo predstavlja le delček v mozaiku potrebnih strategij, ki bi pripomogle k razumevanju prostora in ohranjanju lepote narave. Zasnovan hotel in žičniški postaji se subtilno umeščata v prostor, tako da uporabniku, domačinu ali zunanjemu opazovalcu ne zastira pogleda na okoliške gore in jezero, nasprotno, silhueta in preboji v strukturi uokvirjajo podobo kraja. Izbrano delo predstavlja izziv, saj gre za infrastrukturno dejavnost, ki je skozi zgodovino najbolj škodljivo vplivala na prostor. Rešitev poskuša zmanjšati vpliv na vsaj določeno stopnjo okoljske tolerance.
Ključne besede: arhitektura, kontekst, žičnica, hotel, smučišče Vogel, Bohinj, Alpe
Objavljeno: 11.10.2018; Ogledov: 69; Prenosov: 23
.pdf Celotno besedilo (190,12 MB)

4.
Arhitekturna prenova mestnega trga v velenju
Žan Silovšek, 2018, magistrsko delo

Opis: Po drugi svetovni vojni, v obdobju socializma ter hitre industrializacije, urbanizacije in deagrarizacije, je svojo podobo in svoj prepoznavni pečat dobilo mlado mesto Velenje. Mesto se je v kratkem času, na podlagi rešitev različnih urbanističnih načrtov, hitro začelo razvijati in dobilo naziv modernističnega mesta v parku. S svojo moderno arhitekturno zasnovo je drugačno od drugih slovenskih mest. Stavbe so zamišljene ambiciozno, drzno, estetsko in funkcionalno. Na vsakem koraku pa navdušuje narava, saj je mesto zrastlo v parku. Potencial Velenja se kaže v nadgradnji ambicioznih zamisli odprtega javnega prostora, saj je v času od izgradnje mesta Velenje prišlo do velikih sprememb v družbeni strukturi, kjer je potrebno celovito prilagoditi in nadgraditi nekatere zastarele arhitekturne, tehnološke in sociološke vidike mesta. S predlogom arhitekturne prenove in revitalizacije mestnega trga podamo konkretne rešitve za vzpostavitev funkcije odprtega javnega prostora z novimi spremljajočimi programi, ki pomagajo privabiti uporabnike in na ta način izboljšati utrip mesta, na območju Titovega trga. Na trgu vzpostavimo prostorsko kvaliteto, identiteto mestnega središča, ki ga definiramo, preoblikujemo in prilagodimo s programsko pestrostjo po potrebi mesta, uporabnikov, prebivalcev in turistov. Prenova osrednjega trga poveže ter dopolni obstoječo stavbno strukturo in obenem poda smernice za nadaljnji razvoj in napredek urbanega planiranja. Z idejno zasnovo prenove mestnega jedra želimo ustvariti kvaliteten odprti prostor po sodobnih načelih bivanja.
Ključne besede: Arhitektura, mesto v parku, modernizem, prenova trga, Titov trg, urbanizem, Velenje, zeleno mesto.
Objavljeno: 11.10.2018; Ogledov: 53; Prenosov: 18
.pdf Celotno besedilo (126,38 MB)

5.
A general analytical solution to the one-dimensional consolidation problem for unsaturated soil under various loading conditions
Jiwei Li, Changfu Wei, Yanlin Zhao, 2018, izvirni znanstveni članek

Opis: A general analytical solution is developed for the onedimensional consolidation problem of unsaturated soil under various time-dependent loading conditions based on a differential transformation method (DTM). In particular, analytical solutions are obtained for different relationships between the coefficients in the governing equations for unsaturated soil consolidation. The Fourier series expansion technique is adopted to account for both the continuous differentiable loading and the periodic piecewise loading. A comparison between the results of the current solution and the existing theoretical solution indicates that the proposed solution yields excellent results, while it is straightforward to obtain the analytical solution of the unsaturated consolidation problems. It was also found that the variations in the coefficients in the governing equations can significantly influence the dissipation of both the excess pore-air pressure and the excess pore-water pressure, though the magnitudes of their variations are different.
Ključne besede: one-dimensional consolidation problem, unsaturated soil, analytical solution, time-dependent loading
Objavljeno: 11.10.2018; Ogledov: 36; Prenosov: 6
.pdf Celotno besedilo (814,44 KB)

6.
Modified coefficient of subgrade reaction to laterally loaded piles
Ayhan Gurbuz, 2018, izvirni znanstveni članek

Opis: An accurate prediction of the load capacity of a laterally loaded pile at a permissible displacement is an important concern at the design stage. In contrast to many sophisticated methods, Broms’ method based on moment equilibrium has been preferred by engineers to predict the load capacities of laterally loaded piles due to both its simplicity and because it is established on a way of hand calculation. However, Broms’ method typically overestimates a pile’s lateral load capacity as it requires a constant coefficient of horizontal subgrade reaction (nh) into analyses, regardless of the magnitude of the pile’s top displacement. In this study, modified coefficients of subgrade reactions(nh*) that are sensitive to the pile’s top displacement in cohesionless soils are first proposed to improve the performance level of Broms’ method for the prediction of the load capacity of a laterally loaded pile as the pile’s top displacement increases. The modified values of nh* are calibrated using 45 independently free-head, single-driven, full-scale pile tests from 23 sites in cohesionless soils. It is demonstrated that Broms’ method with nh* would correctly estimate a pile’s lateral load-deflection behavior with accuracy levels similar to more complicated methods.
Ključne besede: Broms' method, coefficient of horizontal subgrade reaction, p-y curves, strain wedge model
Objavljeno: 11.10.2018; Ogledov: 19; Prenosov: 5
.pdf Celotno besedilo (735,27 KB)

7.
A simplified method to analyze pile-supported and geosynthetic-reinforced embankments and the influence significance analysis of the design parameters
Liu Feicheng, Zhang Jianjing, Yan Shijie, Cao Licong, 2018, izvirni znanstveni članek

Opis: A simplified method for evaluating a pile-supported embankment reinforced with geosynthetic (PGRS embankment) is proposed in this paper. The method takes into account not only the arching effect, the membrane effect of the deflected geosynthetic, and the subsoil reaction, but also the pile head settlement, which makes the method applicable for floating piles, as well as piles seated on a firm soil layer. The settlement of the subsoil surface is considered to consist of two parts: (a) the settlement of the subsoil surface equals that of the pile cap with no deformation in geosynthetic yet; (b) the subsoil surface subsides along with the geosynthetic deforming, and the deflected geosynthetic being considered as catenary shaped. The formula for the maximum differential settlement between the subsoil surface and the piles is worked out by analyzing the force equilibrium of the geosynthetic and the stress-strain relationship of the geosynthetic at the edge of the pile cap. The comparison of the calculated results with the observed data and the six current analytical methods has been implemented to verify the proposed method. The influence of the tensile stiffness of the geosynthetic, compression modulus of soft soil, soft soil thickness, embankment height, internal friction angle of the embankment fill and the pile spacing on the subsoil reaction, the stress concentration ratio (SCR) and the tension of the geosynthetic are investigated using the proposed method. The influence significance of these factors has been investigated using the evaluation theory of binary variance analysis for the non-repeatability tests, which helps optimize the design of the PGRS embankment.
Ključne besede: pile-supported embankment, geosynthetic, simplified method, influence significance, binary variance analysis
Objavljeno: 11.10.2018; Ogledov: 13; Prenosov: 4
.pdf Celotno besedilo (1,23 MB)

8.
Effect of particle roundness and morphology on the shear failure mechanism of granular soil under strip footing
Babak Karimi Ghalehjough, Suat Akbulut, Semet Çelik, 2018, izvirni znanstveni članek

Opis: This study investigates the effect of particles roundness and morphology on the shear failure mechanism of soil. A strip footing was modeled under laboratory conditions. Calcareous soil was tested with three roundness classes: angular, rounded and well-rounded shapes with sizes of 0.30 mm to 4.75 mm. These were divided into six different groups at three relative densities of 30%, 50% and 70%. A series of photographs was taken during the tests and analyzed using the particle image velocimetry (PIV) method to understand the soil-deformation mechanism. The results showed that increasing the sample sizes increased the affected area of the soil. At the same time, increasing the relative density caused a punching failure mechanism that went towards the general failure. The shear failure mechanism of the soil changed from general toward punching shear failure with increasing particle roundness. This effect was larger with the smaller materials. Underneath the affected layers of soil, the angular samples were deeper than the rounded and well-rounded samples. The affected depth in the angular soil was approximately 1.5B in the smallest size group. This was more than 3B and near 4B in the largest size group. Both the sides and the underlying soil layers should be considered on angular soils. The area under the footing becomes more important than the side parts after increasing the roundness of the particles.
Ključne besede: particle roundness, morphology of particles, shear failure mechanism, strip footing, PIV method, ultimate bearing capacity
Objavljeno: 11.10.2018; Ogledov: 14; Prenosov: 4
.pdf Celotno besedilo (701,47 KB)

9.
Evaluation of the constriction size reduction of granular filters due to upstream cohesive base-soil erosion
Samira Azirou, Ahmed Benamar, Abdelkader Tahakourt, 2018, izvirni znanstveni članek

Opis: This study is devoted to filter-constrictions analysis and its application with respect to void and constrictions reduction during soil filtration. The experimental investigation involves combined Hole Erosion-Filtration tests using several soils and filters. The base soils are lean clays and the granular filters are selected according to the usual filtration criteria. The combination of the experimental data for porosity variation and the analytical results from the Constriction Size Distribution (CSD) analysis was used to evaluate the constrictions size reduction subsequent to the filtration process. The filtration depth was also estimated according to the retained soil mass and the porosity reduction deduced from the measured hydraulic conductivity. An analytical model of the CSD was applied to the experimental results in order to assess the constrictions reduction. As regards the obtained results, a nonuniform constriction reduction was suggested according to the effective filtration depth, advocating a dynamic filter action.
Ključne besede: granular filter, internal erosion, constriction, porosity, filtration index
Objavljeno: 11.10.2018; Ogledov: 15; Prenosov: 5
.pdf Celotno besedilo (653,76 KB)

10.
A geostress measurement method based on an integrated drilling and optical microscopic imaging system
Jinchao Wang, Chunying Wang, Zengqiang Han, Yiteng Wang, Xinjian Tang, 2018, izvirni znanstveni članek

Opis: Conventional geostress measurement methods are limited by deficiencies including the measurable depth, the complexity, and the long duration of operation. To address these problems and achieve the measurement of geostress in deep wells under conditions of complex high pressures and high temperatures, we propose a new measurement method for geostress based on an integrated drilling and optical microscopy system. Its innovative integrated structure eliminates the problems associated with complex procedures and depth limits, and avoids rock creep caused by long delays, significantly improving the accuracy and range of the measurements. It works by using microscopic imaging and direct contact probes to capture the changes of a borehole’s cross-sectional outlines before and after stress relief. The resulting images are analyzed with search circles to obtain the positions of probe apices, which can be fitted into ellipses that describe the outlines, and calculate the state of the stress. The validity and accuracy of the method was verified by in-door tests and field applications in the ZK1 borehole. The results show that: (1) the integrated system can be used to measure micrometer-grade deformations; (2) the searchcircle approach can accurately obtain the positions of probe apices; and (3) the stress measurement method based on the system is accurate and feasible.
Ključne besede: geostress, probe, optical microscopy, measurement while drilling, search circle
Objavljeno: 11.10.2018; Ogledov: 22; Prenosov: 5
.pdf Celotno besedilo (1,26 MB)

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