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Outline solutions to waste water drainage for thesettlements of Stanežiče, Dvor, Medno
Full text linkThis thesis presents conceptual project solutions of waste water drainage for the settlements of Stanežiče, Dvor and Medno. Considering the standards presented, current situation and discretion, a separate sewage system has been designed for the area. The thesis presents different options with direct connections to the existing collection sanitary sewer and options with a small common treatment plant. It was established that the option with the treatment plant would be impractical because of the proximity of the collection channel, the remoteness of an appropriate stack and an available Central Treatment Plant (CČN) Ljubljana. For the whole area, four different sewage systems for waste water and three systems for rainwater are presented; their total length is approximately 9.6 km. The sewage systems are dimensioned to the required filling tubes on the basis of the hydraulic calculation according to the retention method. Key parameters of the hydraulic calculation for waste water and rainwater are presented in detail. The configuration of the terrain mostly allows gravitational drainage, but for one part of Stanežiče, pumping has been predicted. The pumping station is dimensioned to allow set resistance time and it can carry out an appropriate number of daily activation depending on the chosen pump and intended inflows. Furthermore, the materials of the presented pipes, manholes and their installation are presented. Costs inventory and detailed investment analysis have been made for all of the seven systems. The thesis contains different annexes: hydraulic calculations, task lists, graphic details, situation maps and longitudinal profiles
Computational analysis of sound insulation between rooms in accordance with current legislation
Full text linkGraduation thesis presents calculated estimation of the sound insulation of airborne sound between rooms in accordance with standard SIST EN 12354-1 and Technical guideline TSG - 1 - 005: 2012. We have obtained and calculated sound insulation data for common structural elements (wall and floor) that are used in construction (brick walls, plasterboard walls, concrete wall and floor constructions …).\ud
Sound insulation data for the element is the base for calculation of sound insulation between rooms, because in addition to the sound insulation of border element, the sound insulation between rooms is also influenced by other parameters (size of rooms, contacts between the elements of rooms …). The calculation only takes into account propagation of the sound trough construction and not the direct passage of sound and indirect sound transmission\ud
through the second room. \ud
It also includes brief presentation of three Slovenian and one foregion computer programs used for calculating the sound insulation between rooms that are in accordance with current legislation and available on the Slovenian market.\ud
The appendix chapter includes comparison of the minimum requirements from the technical guidelines according to the type of the building and purpose of the room between which we're checking the sound insulation
Influence of viscous creep on mechanical behaviour of steel structures in fire
Full text linkThis thesis deals with the influence of viscous creep of steel at elevated temperatures on the behavior of steel structure during fire. Models of viscous creep of steel at elevated temperatures are being extensively presented. For Harmathy's model of viscous creep of steel and bilinear material model of steel, new values of material parameters for Harmathy model were proposed for structural steel grade S355, based on experimental results of tensile bar. Similarly, for Harmathy's model of viscous creep of steel and modified Poh material model of steel, new values of material parameters were proposed for structural steel grade S355. Modified Poh material model was additionaly built into the program POZAR. The program is also complemented by a modified incremental–iterational process, which significantly increases the speed of computational analysis. In case of fire analysis of simply supported beam at 50 % of critical load, the computational analysis, with usage of modified algorithm, ends at least 57 times faster. The proposed values of material parameters for Harmathy viscous creep model at elevated temperatures were validated. Comparison between experimental and numerical results which were determined with proposed material parameters for Harmathy viscous creep model shows good agreement between the results only at low stress values. Accurate parametric analysis shows that the critical times of the typical steel frame for proposed values of material parameters for Harmathy viscous creep model are comparable. This applies to both the standard fire curve, as well as natural fire with fast and slow temperature increase in the fire area. The only difference is the deformability of frames, due to the model proposed by standard SIST EN 1993-1-2 being significantly stiffer
Proposal for the Mislinja river regulation between Dovže and Slovenj Gradec
Full text linkRivers have been losing its self-cleaning and holding function in the past, because of radical interventions to water and waterside areas, biotic diversity and the number of habitats decreased and morphological and hydrological characteristics of watercourses have also changed. Thirty-six kilometers long river Mislinja that springs under Rogla runs through Mislinja and Slovenj Gradec and flows into river Meža at Dravograd is no exception. In the thesis is presented the hydraulic analysis of Mislinja section between settlement Dovže and Slovenj Gradec and natural measures that would improve waterside condition and connection of people with the river are proposed. Hydraulic and ecological needs were taken into consideration. For topographical data preparation ArcGIS was used and its expansion HEC-GeoRAS for watercourse data entry (river canal, river lines, riverbanks and cross profile course). Hydraulic analysis for existing and new condition of different currents was made with program HEC-RAS and a prepared hydraulic model
Water main installation and rehabilitation technologies
Full text linkThe use of trenchless technologies is a relatively unexplored field of study in Slovenija, while their use is a common practice in many other countries. The thesis offers an insight into the possibilities for the use of trenchless technologies in the field of installation and rehabilitation of water mains in Slovenija. The focus in the first part of the thesis is mainly on the slovenian and dutch policy in the field of water supply and trenchless technologies. Also, we briefly discussed the technical information about slovenian and dutch water supply in order to better understand the reasons for their similarities and the differences. In the second part of the thesis the classification of the technologies for trenchless water pipe installation had been made as an alternative to the traditional open – trench installation. In addition, an overview of the technologies for the rehabilitation of water mains had been made. With the term rehabilitation we included cleaning, repairs, renewal and replacement of the water mains. The comparison between the rehabilitation technologies had been discussed as well. Third part of the thesis presents flowcharts for decision–making about the suitable technology for the rehabilitation of water mains. In the end we tested the use of flowcharts in four different water main locations
Comparison of methods for pavement structural design according to TSC and german guidelines with pavement design catalogue
Full text linkThe question arises whether to design pavement structure for each individual case or to choose the adequate pavement structure for the relevant traffic load from the catalogue of standardized pavement structures. I incline to the fact that the choice of adequate pavement structure from the catalogue is more practical and faster way. In Slovenia such a way is still non-existent. This is the reason why the aim of my diploma work is to produce a catalogue of relevant asphalt pavement structures based on the model of German guidelines. In the first part of my thesis I detailed the method of designing asphalt pavement in our country and in Germany. In Slovenia designing asphalt pavement is carried out according to regulations in Technical specifications for public roads TSC 06.520 Design of new asphalt pavement. In the second part of my thesis I worked out the Catalogue of asphalt pavement considering the demands of standards, technical directives and regulations valuable in Slovenia. In the catalogue I present the suggested compositions of asphalt pavement (dimensions as well as materials) for separate traffic loads classes. The catalogue is elaborated for the structure of asphalt pavement mostly carried out in our country. It is about the asphalt surfacing built in on a crush rock base course and this one on a mineral capping layer
Thatched roof - past and present
Full text linkFor thousands of years, straw and reed were the most popular materials for roof covering, but with the arrival of industry, mobility and a decrease in arable farming in the 19th century, straw roofs began to disappear. Now they are becoming increasingly popular again, especially in the developed countries of northern Europe. In Slovenia too the first complex buildings covered with straw have started to\ud
emerge. \ud
The thesis presents the history and construction process of thatched roofing from the growing of appropriate grain to maintenance of thatched roof. Four criteria of sustainable building are in focus: economic, environmental, social, and health criteria. The thesis presents three possible types of structural components with thatched roofing: traditional thatched roof, cold roof, and warm roof. The different types of thatched roofs have different levels of sensitivity to condensation or fire, so solutions to these problems are also presented. For specific examples of structural components the analysis of their thermal transmittance, vapor diffusion, thermal stability, and surface temperature have been conducted. A comparison has been made of the thickness, weight and the price of structural components for various possibilities of placement of thermal insulation and fire barrier
An entry of reconstructed local road in the land cadastral register
Full text linkThe thesis described the reconstruction of the local road connecting the village Dragučova to the public road. The road runs along the private land, so the thesis describes the process for obtaining the right to possess a property by the roadside, cadastral registry of the road with administrative procedures of cadastral registrations entries, and land register. A special chapter is devoted to process of road classification
Influence of chemical and mineral admixtures on rheological properties of fresh cement mortars
Full text linkThe main purpose of the thesis was study of influence of chemical admixtures and mineral additives on the rheological properties of fresh cement mortar, so called CEM mortar. Composition of particular mortar mixture was determined from composition of relevant concrete mixture, by concrete equivalent mortar method (CEM method).\ud
All the measurements were performed in laboratory of the Faculty of Civil and Geodetic Engineering of University of Ljubljana. The rheological parameters were measured using a\ud
rheometer ConTec Viscometer 5 and by parallel measurements of mortar flow value on flow table. Research on the concrete, comparison between concrete and mortar mixtures and evaluation of CEM method were carried out within the thesis and doctoral dissertation. 26 different mortar compositions, which can be classified into 8 groups, were mixed and tested. All mixtures contained aggregate, cement and water. The mixtures differ by the content of chemical admixtures and mineral additives, type of cement and water to cement ratio. Mineral additives, which replaced part of the cement, were microsilica, tuff and ground granulated blast furnace slag. Chemical admixtures used in the study were superplasticizer and air entraining agent. We used also two different type of cement. Test results are presented in reographs and graphs that show relationship between yield value or flow value and content of studied mortar constituent. The tests were carried out immediately after the mixing of mortar was completed and 20 min, 40 min and 60 min after the mixing completion
Allocation of obligations for drinking water supply between the Republic od Slovenia and the local communities
Full text linkIn the presented academic work I study the allocation of obligations between the Republic of Slovenia and the local communities for drinking water supply in the regions of Slovenska Istra, Kras and Brkini with Reka valley. Rižanski vodovod Koper, Kraški vodovod Sežana and Komunala Ilirska Bistrica are public companies that provide the water supply in the area of study. Their main water sources are Rižana, Brestovica and Bistrica. The regions are dealing with the problem of lack in water quantities, especially in the summer months. Because Rižanski vodovod Koper has to buy the missing quantities of water from the neighboring\ud
water sistems, it faces the most critial problems with water supply. A problem of the sudied water sistems is also the provision of spare water sources, that represent one of the basis for quality water supplies. Many different studies were made, with the intent of sloving the water\ud
problems, but none of them were realised. This time, I decided to look at the problem from a different point of view, a way that allocates obligations between the local community and the Republic of Slovenia. Based on the results of SWOT and GIS analysis, I can claim that the\ud
best option for future water supply would be option C. In this case is the water supply manegement entirely under the responsibility of the Republic of Slovenia