3400 research outputs found
Sort by
Comparative analyses between data of franciscean cadastre and current cadastre in the caastral community of Črešnjice
Full text linkThis thesis introduces the possibility of using archive material from the Franciscan cadastre to describe spatial entities in that time and to reconstruct the measurement process in a certain area. The theoretical part of the thesis presents the history of land cadastre with an emphasis on the description of the history of land cadastre in Slovenia, concluded with a detailed description of the Franciscan cadastre. We focused on the applicability of indication sketches to determine the measurement areas (fallows) and to reconstruct the measurement process in a study area. Analytically we focused on the area of cadastral community of Črešnjice for which we have carried out analyses of visibility among points and of visibility of the area from certain points. To analyse the visibility we used archive data on trigonometric and graphic points in the study area and the digital terrain model (DTM), which we acquired from the Ministry of the Environment and Spatial Planning. The analyses confirmed that it is possible to determine measurement areas and to reconstruct the measurement process from the Franciscan cadastre with the help of indication sketches. The results are presented\ud
graphically as well as numerically
Analysis and improvement of road safety on road section Šmartinska cesta-Grablovičeva ulica
Full text linkIn the diploma thesis I discuss the analysis and reconstruction of the road section Šmartinska cesta – \ud
Grablovičeva ulica. I describe the problematic of vulnerable traffic participants and pinpoint the critical areas with help of guidelines for road safety inspection. After the analysis, I recommend reconstruction measures of critical areas with help of technical specifications and implement those measures graphically
Design of bridge over Kamniška Bistrica
Full text linkThe conceptual design as well as the analysis and design of main structural element of a new bridge over river Kamniška Bistrica in the area of Kamnik has been performed. New bridge is a part of the third urban road connection in Kamnik. Requirements related to the function of the new road and bridge itself were taken into account according to the official document issued by the Municipality of Kamnik. First all available documentation was examined, with an emphasis to the terrain properties of the area and the traffic requirements defined for the new road connection. The underpass of the road Cesta 27. julija on the right bank of the river and an underpass for cyclists and pedestrians on the left bank, were taken into account in the conceptual design of the bridge. Four different structural systems: 1) RC continuous threespan beam bridge supported by vertical piers; 2) RC three-span bridge supported by inclined piers; 3) RC arch bridge with two adjacent vertical piers and slab deck, 4) RC arch bridge with slab deck supported by two rectangular beams, were analysed. These structural systems were compared based on the several criteria: vertical displacements, bending moments and longitudinal reinforcement. The most optimal system appeared to be the arch bridge with slab deck.\ud
Upon the analysis of suitable materials, analysis of different loads and ground types at the location of the object the detailed analysis of the selected structural system was performed using Sofistik software. The bridge was analysed for different persistent and transient design situations as well as for the influence of the accidental and seismic design loads. At the last part of the thesis detailed design and detailing of the RC arch (main supporting structural element of the bridge), according to Eurocode standards and technical guidelines was performed
Influence of longitudinal slope on flow conditions in a fishway
Full text linkThis thesis discussses the use of mathematical modeling of a turbulent flow using PCFLOW2D in a\ud
fishway. Recently in Slovenia they gained increased attention for the research of the improval of the\ud
longitudinal connectivity of watercourses to achieve good ecological status required by Water\ud
Framework Directive for all existing and new fishways by the year of 2027. We can therefore use\ud
hydraulic models to calculate different flow conditions of various fishway examples to assess their\ud
suitability for fish migration. In the first part of the thesis we present the main features of the most\ud
common types of fishways currently used in the world and list their strengths and weaknesses. We then\ud
explain the importance of efficient fishways and how it could improve our understanding by collecting\ud
large data of standardized measurements of migrations on existing fishways. In the second part of the\ud
thesis we use the example of the vertical slot fishway used on HPP Arto Blanca. Its flow can be described\ud
as an example of a two dimensional flow. where the vertical component of the velocity is negligible,\ud
therefore we use depth-averged model of flow for the existing two planar velocity components. We\ud
perform our calculations with the k-ε turbulence model on four different examples of longitudinal slopes\ud
in five different flow conditions, which shows that the degree of turbulence is only slope dependent.\ud
When checking the suitability for target fish species it turns out that only the lowest level of longitudinal\ud
slope of 10 cm per pool gets sufficient enough low levels of dissipation of the turbulent kinetic energy
Cartographic Representation of the Ljubljana Ski Jump Hill Project
Full text linkSki jumping has recently become one of the most popular sports in Slovenia. The sports discipline has gained popularity and became widespread due to the great achievements of “Slovene Eagles.” Slovenia traditionally hosts the Ski Jumping World Cup Final, which takes place in Planica. Due to popularity the event turnes into the Slovenian sports holiday under the Ponce. In the diploma thesis the topic of Cartographic Representation of the Ljubljana Ski Jump Hill Project is discussed. An old ski jump hill used to be located in the area, but now the idea of building a new ski jump has been revived. The diploma thesis discusses data on the location of the project proposal and includes the editorial map plan. The project proposal has been georeferenced into the planned location \ud
and the cartographic representation of the area has been produced as well. The relief map, the inclination map, the hill-shading map, the cross-section representation (profile) of the location of the new and the old ski jump maps have been added to the main map. The maps have been created by the use of different software, and as a matter of interest, the estimated volume of the necessary excavation for the ski jump hill landing surface of the new ski jump has been calculated
Cost analysis of asphalt mixtures of surface layers
Full text linkAsphalt is one of the major construction materials. Within the european road network there are around 6.1 million km of paved roads, linking major urban centers as well as small communities. Surface layers of asphalt pavements are most directly exposed to traffic and climate loads. They have to undertake and transfer different forces that are generated by vehicles driving on the surface and at the same time protect the pavement from the weather effects. Such loads require continuously monitoring of professional development in the field of asphalts and ensuring the quality of asphalt mixtures and pavements with minimizing the cost of production, laying, maintenance and recycling. Intensive construction of motorways and associated infrastructure between 1995 and 2010 in Slovenia had a positive impact on the asphalt industry, which was constantly developing. After 2008 the production of asphalt mixtures drastically reduced, thereby affecting the asphalt plants. \ud
The Master’s thesis presents how asphalt plants determine the price of asphalt mixtures for surface layers. Due to the fact that the asphalt mixtures for surface layers with use of polymer modified bitumen are significantly more expensive than asphalt mixtures using a conventional bitumen, the cost analysis carried out show whether the higher cost is entitled, because in practice often happens, due to these price differences, that cheaper asphalt mixtures are used, regardless of negative consequences
Influence of crossfall on road pavement surface skid resistance
Full text linkTraffic safety can be ensured only with a comprehensive understanding of the system driver - vehicle - road environment. Accidents on roads happen due to the driver's actions, errors and problems with the vehicles or happen on account of adverse events in the driving environment. A part of the road safety can certainly be attributed to the pavement surface and its own performance. Particularly important contributing properties are skid resistance and macrotexture.\ud
The aim of the work for this thesis was to determine the influence of crossfall and slope on the results of skid resistance measurements. This impact can be notable and may significantly affect the calculation of the characteristic skid resistance values – the limit, minimal and acceptance values - which are used in the assessement of pavement\ud
performance of roads in Slovenia. \ud
The results of the skid resistance measurements on motorways in 2008, performed with the SCRIMTEX device, served as a basis of the work. These results were compared with the pavement geometric data; with age of asphalt mixtures, built-in the pavement surface; and with traffic load of concerned road sections.\ud
A high number of different combinations of influence on skid resistance for the motorway' pavements were examined. Among them some indicate a weak correlation between skid resistance/influential parameter, and only few indicate a moderate correlation. For vast majority the relationship was found to be insignificant. As such, the results don't represent a momentum strong enough to change or adapt the above-mentioned skid resistance characteristic values
Contribution to the development of a spatial planning method to reach no net land take
Full text linkThe Master thesis discusses the role of soil in the process of urbanization. The basic guideline in planning has become a sustainable spatial development and reduction of consumption of natural resources as also no net land take by 2050. The quality aspect of the soil will be needed to be incorporated into spatial methodology with relevant indicators. This derives from the assumption that soil is limited resource. This direction are adapted also spatial development objectives by providing a quality living environment, densification of the city, the coordinated development of urban areas and rational use of natural resources. In Europe and Slovenia encroachments of urbanization have not been in proportion to population growth in the past decades. Building space areas have increased mainly due to sealing of farmland. Despite their legal protection and appropriate spatial development objectives. Negative effects of excessive sealing have arrised, especially in large urban areas.\ud
In this thesis we verify the claim that it could be possible to steer sustainable spatial development taking into account the needs of development and eventually reach no net land take. With this process we could preserve as much natural undeveloped land as possible with satisfying all development needs of the city. Residential standard is thus maintained, as also proper circular concept of economic and overall sustainable development. The thesis for this purpose connects pedological evaluation of soil with spatial development. The main study investigates availability and suitability of methods of soil quality evaluation in terms of possible incorporation into spatial planning system. As the most methodological and data suitable Urban-SMS method has been selected. The result of thesis is a verification task of introducing the proposed method in the planning methodology and drafting a proposal for amendments to legislation to better pursue sustainability goals
Possibilities of use and limitations of boards made of packaging waste
Full text linkThe theoretical part of this master's thesis is divided into several parts. The first part summarizes the legislation on waste management in Slovenia and the EU, focusing on management of packaging waste. Next, general characteristics of polymer materials are presented, the division of polymer materials in terms of their origin, various waste recovery processes (thermoplast and thermoset), and their purpose. The last theoretical part deals with general definition of packaging waste and its breakdown by type, function and place of origin. The theoretical part ends with 2013 and 2014 annual reports' summaries of six registered packaging waste management companies in Slovenia. \ud
The experimental part of the master's thesis focuses on three boards made of packaging waste, which are different by structure. Firstly, the process of board production and the detailed composition description of three groups of boards are described. Secondly, the data on test items for further research are presented in tables. Then there follows the description of the empirical part of the master's thesis. Testings of boards made of packaging waste were conducted in the Laboratory of Structural and Traffic Engineering at the Faculty of Civil and Geodetic Engineering, University of Ljubljana, Slovenia. Pressure, bending and shear tests were performed on individual boards made of packaging waste, as well as pressure test on test item made of several boards made of packaging waste. This was followed by the reaction test of immersing the boards into water and into 1.0 molar solutions of sodium chloride and of potassium hydroxide. Finally, the reaction of boards made of packaging waste when tested for creep, thermal conductivity and water vapour resistance factor was researched. \ud
Based on the analysis of the test results recommendations are made, suggesting where and for what purposes such boards made of packaging waste could be used, by preventing at the same time burden to the environment
Application of waste plastic in concrete composites
Full text linkPlastics have found uses in various applications. Their widespread use results in enormous amounts of waste which must be properly recycled or recovered. One possibility is the recycling of plastic waste and its use in concrete. As a part of my Master's thesis, we carried out our research on waste plastics such as PE, PP and PVC. In the first part of it, we reviewed the current research on the use of plastics in concrete. This was followed by plastic waste characterization in order to make concrete recipes. In the final part of our research, we partially replaced natural aggregate in concrete with waste plastics and subjected it to standard laboratory tests