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Intersection of R2-445 and R2-446 reconstruction variants study in Sežana
Get PDFThis thesis deals with the possible variants of the reconstruction of the signalised intersection in Sežana. We have done a comparative analysis of the three possible variants of the intersection reconstruction. Studies include the feasibility analysis, capacity analysis, safety analysis and the economic analysis for the three possible variants. The proposed solution is a construction of a roundabout at the conceptual level, in accordance with the technical specifications for public roads. Data were obtained on automatic and manual traffic count, traffic light control program, car accidents and surveying plan
Optimization of terrestrial geodetic networks designed for monitoring movements
Get PDFThe problem of optimization of geodetic networks has been extensively examined in geodetic science for the last 40 years. Despite extensive researches and progression at this field of study, it is still considered that general and unique solution of optimization does not exist, which is confirmed by countless procedures that solve the optimization problem depending on one or a group of criteria. These procedures, based on selected criteria, contain certain limitations, that prevent an universal solution, in spite of that, some methods provide reliable and practically useful results. In selected terrestrial networks in Slovenia, which are established for the purposes of control measurements, will be shown the use of the second order optimization. Measurements in these networks have been carrying out for longer period, they started average of more than 10 years ago. Until today, none of these treated networks had been completely optimized, therefore, the purpose of this work is to verify, if the measurements carried out in individual network, are actually needed and what impact the individual measurements have on the accuracy, when determinating the coordinates of points. This will give us an optimal plan of measurements, that will satisfy the requirements of the criteria of accuracy and could be realized with the available measuring equipment as well as lower costs
energy analysis of single familly patlern book house made of aerated concrete
Get PDFIn the thesis I analyzed, how to satisfy the conditions required by the Action Plan for the nearly-zero energy house (AN sNES) with individual measures.\ud
In the first place I introduced measures to satisfy all the requirements of PURES 2010 on the selected pattern-book house. Then I presented five additional actions that affect the further reduction of energy consumption in the house. The aim was to meet the requirements provided for by AN sNES. For analysing all the measures carried out, I used the program TEDI and TOST, which allow displaying of the energy balance of the house. Then I presented a way to use renewable energy in the house. After inclusion of all measures in the calculation of the energy balance of the house, I reached the energy saving building requirements that will be statutory defined in 2020
Influence of chemical admixtures on rheological properties of fresh concrete
Get PDFWithin the thesis we carried out tests on fresh concrete mixtures. The main purpose of the tests was to examine the influence of chemical admixtures on rheological properties of fresh concrete. Measurement of rheological parameters was carried out with ConTec Viscometer 5 rheomether. In parallel, we also carried out slump test and flow table test on fresh mixtures and determined air content for mixtures with air-entraining agent. All concrete mixtures were composed of aggregate, water, cement and chemical admixture. As admixture, superplasticizer, air-entraining agent and stabilizer were used. We also used two different types of cement. The obtained results were analysed and comparison between shear yield stress and plastic viscosity, as well as slump and flow value were made in different times after mixing of fresh concrete
Environmental valuation of external thermal insulation composite systems
Get PDFLately, there has been a lot of discussion about negative impacts on the environment that are caused by human actions. Climate change, ozone hole, global warming, air pollution are only some of the many negative impacts. In addition, non-renewable energy resources (such as oil, natural gas, coal) are being depleted, causing energy to increasingly become more and more valuable. One of the methods for detection of such negative environmental impacts is the socalled life cycle assessment method or LCA. First part of the master thesis presents the LCA method and with it connected standardization, its characteristics, process and its use in construction industry. It continues with the presentation of the ETICS and its components. The LCA calculation (“from cradle to gate”) using real data and the presentation of the results in form of the environmental product declaration EPD, is carried out for adhesive mortar, finishing coat and ETICS. Last part of this thesis presents the comparison of the environmental impacts on thermal insulation materials, finishing coats and ETICS. We compared the thermal insulation materials according to the LCA results that were calculated from the databases. For comparison of the finishing coats we used publicly available EPD and the finishing coat we calculated ourselves. Lastly we combined different thermal insulation materials and finishing coats into ETICS, calculated LCA and compared the ETICS. We have found that the only right comparison including declared unit is the one that is based on the function of the material and not on the mass unit of the material. The results vary according to different environmental impact indicators, therefore it is necessary to compare different indicators among themselves. Using LCA we came to a conclusion that the thermal insulation material has the biggest impact on the ETICS in majority of the environmental impact indicators, while the choice of finishing coat does not play a key role for environmental impact indicators
Geostatic analysis of the construction Pit Tobačna mesto
Get PDFThe thesis deals with the stiffness of soils at small strains. The analysis of excavation supported by the\ud
retaining diaphragm wall, for which horizontal movements with inclinometers were measured during\ud
and after construction, shows that small strain stiffness and its nonlinear dependancy on the strain\ud
amplitude should be properly taken into account to get reliable predictions of displacements.\ud
Finite element numerical analyses with computer program Plaxis were carried out taking into account\ud
two different material models: The nonlinear elasto-plastic model with isotropic hardening (Hardening\ud
Soil Model – HS model) and nonlinear elasto-plastic model with isotropic hardening and small strain\ud
stiffness (Hardening Soil Small Model – HSSMALL Model). The analyses were limited to the\ud
comparisson of bending moments and horizontal displacement of the diaphragm wall. The results of\ud
analyses, that consider HS model, show, that the bending moments and horizontal displacements are\ud
higher compared to inclinometer measured horizontal displacements. The HSSMALL model gives\ud
much better predictions as compared to the measured values of displcemants and therefore is more\ud
convenient for the analyses of such constructions
Process of a construction project from the perspective of the client - case of a single -family home
Get PDFThe dissertation presents a construction project from the perspective of the client in the case\ud
of single-family home, with a focus primarily on the planning and design of a single-family\ud
home. Due to systematic and for an easier presentation and understanding of a construction\ud
project, the thesis is divided into two parts. The first part is devoted to the theoretical\ud
examination of all the necessary procedures, operations and documents that are necessary\ud
for the preparation and execution of the construction work and is manufactured according to\ud
the regulations of the current legislation. The second part of the thesis presents a concrete\ud
example of the construction project. It is carried out in the case of a standard prefabricated\ud
single-family home Primus-D 150, company LUMAR IG d.o.o. It includes a description of the\ud
facility and a presentation of the phases within the project documents, which are necessary\ud
for the execution of the construction project in full, all the way to the end of construction\ud
project, or to surrender a key to the client
Natural and anthropogenic impacts on hydrosphere in the range of Šmarješke Toplice
Get PDFMy thesis is divided into two main parts. The first part is focused on the properties of\ud
phosphorous and nitrogen that are most important in the eutrophication process, while the second part\ud
of the thesis presents the specifics of the water basin Jezero in Smarjeske Toplice.\ud
The first part of the thesis describes the problem of pollution with nutrients in the aquatic environment\ud
- eutrophication. Eutrophication is caused by excessive nutrient concentrations in the aquatic\ud
environment, which is limited by the lack of one of the two presented nutrients in this thesis. The\ud
thesis is focused on two nutrients, namely phosphorus and nitrogen.\ud
The thesis presents the basic properties for phosphorus and nitrogen and the circulation of these two\ud
nutrients in the environment. It also lists and describes the main anthropogenic activities, which\ud
contribute the largest share of these nutrients into the environment.\ud
In its next chapters the thesis presents the chemical and biological processes, removal of phosphorus\ud
and nitrogen, and some common technologies developed for the purpose of disposing these two\ud
nutrients from water. Then it presents some assumptions and actions for reducing the impact of these\ud
two nutrients on the environment in the future. The first part of the thesis is concluded with the use of\ud
nutrients in Slovenian agriculture in order to improve the productivity of its agricultural land.\ud
The second part of the thesis delivers a presentation of the largest water basin in the Dolenjska region\ud
– water basin Jezero in Šmarješke Toplice. It describes the legislation, regarding water resources on\ud
the European, state and municipal level. It also presents the ways of determining water protection\ud
areas, their different variations and its limits and restrictions. There is also a calculation of nutrient\ud
concentration in the underground waters in this specific area. The final part of the thesis is a product of\ud
collaboration with Komunala Novo mesto. It presents their plans for improving quantitative and\ud
qualitative properties of the water that is pumped from the water basin Jezero
Trail implementation in natural enviroment
Get PDFThis Graduation`s thesis is focusing on studying, understanding and spatial planning of recreational trails in natural enviroment. Slovenia is recognized around the world for the diverse and well preserved nature. That is why it is appropriate for leisure activities in natural enviroment. This study case highlights the importance of trails in natural enviroment, benefits for health and prosperity, and the need for preservation as well as protection of nature. The key concept is sustainable and universal design, which reflects the best practices for environmental responsibility and optimizing social and economic sustainability. In this study case strategies and legislation connected with trails and facilities were also considered. Guidelines from our study case, and the best practices for achieving them, are designed for trails that permit human-powered use. The goal was to ensure that our environment is protected and preserved, while at the same time making it possible for all people to experience the joys of outstanding natural environment. Following the example of the US Forest Service the standard trail plans were developed and used for existing trail restoration in the Karavanke mountain chain
Determining the structure gauge of railway line and distance between track centres
Get PDFThe thesis provides methodologies for determining railway structure gauge and distance between track centres. The first part provides information about reference profile, which is base for determining structure gauge. This is followed by description of different types of gauges, related to railway transport. The thesis also presents separation of railways according to number of tracks. The second part is based on Slovenian standard SIST EN 15273-3:2013. It describes methods for determining structure gauge including all presented widenings (additional overthrows, quasi static effect and random transverse phenomena). In accordance with same standard there are presented methods for determining distance between track centres. The last part of the thesis discusses differences between standard and UIC code 505-4 OR. Calculation examples of different railway gauges and distances between track centres are also included