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Hydrological modeling of Mačkov graben using Flo-2D and HEC-HMS
Full text linkThe theme of this thesis is a basin of torrent Mačkov graben which is located in nortwestern part of Gradaščica River basin and is one of the experimental cathments of the Chair of hydrology and hydraulic engineering at UL FGG. With a goal to develop hydrologic model of Mačkov graben two different programs are used: Flo-2D and HEC-HMS. In the first part the development and functioning of both models is presented. It is followed by presentation about measuring water flows in natural torrents with emphasis on dilution method and Flo-tracer instrument.\ud
The main part of results includes hydrological modeling using both programs. For the model in Flo-2D is important to correctly determine topography, rain data, loss method and control parameters. The model in HEC-HMS demands the basin, meteorological and control model. In the next step comparison of modeled hydrographs with measured ones was conducted for selected rainfall events. \ud
At the end models were evaluated using Nash-Sutcliffe coefficient. The model in HEC-HMS demonstrates higher values of Nash-Sutcliffe coefficient than model in Flo-2D
Analysis of the suitability of paved shoulders for road cycling
Full text linkThis graduation thesis deals with the benefits and the suitability of paved shoulders on Slovenian rural\ud
roads. Paved shoulders are made with paving the part of the shoulder, in order to obtain a smooth and\ud
flat running surface, which is primarily used for recreational road cyclists. At the same time classic\ud
edge line is replaced by edge line rumble strip/stripe, whose characteristics and impact of the use of\ud
the road-safety point of view and in terms of impact on ride comfort of cyclists are given in the fourth\ud
chapter. I considered the regulations and recommendations of the designed bike areas in Slovenia and\ud
elsewhere in the world, where paved shoulders already exist. Then a Bicycle Compatibility Index\ud
method to determine the level of service on rural roads, and the effect of individual parameters on the\ud
bicycle level of service is presented. I first analyzed some examples of existing approximations of\ud
bake lanes on paved shoulders and then did the calculations for each of them separately, using the BCI\ud
method. After that an analysis of the results and measures to improve the current level of service with\ud
regard to road safety, which is directly related to the level of service were made. At the end of the\ud
thesis there is a short chapter on the implementation of paved shoulders at the intersections, followed\ud
by a chapter about maintenance of paved shoulders and rumble strips/stripes
Application of differential radar interferometry for land displacement monitoring
Full text linkSAR technology is popular due to its relative cost-efficency as it enables users to monitor vast\ud
areas. Free access to SAR data obtained by satellite Sentinel-1 of European Space Agency is a\ud
remarkable opportunity. In this study, we are testing the differential interferometry technique\ud
(DInSAR) in the area of Slovenia, known for its dense vegetation that results in low\ud
coherence and influences results greatly. In the first part of the study, we analized\ud
interferogram coherence values throughout the year for different land use. We concluded that\ud
coherence reaches its highest values between November and March, when there is no snow,\ud
on urban areas and on arable land. We used interferograms with best coherence in the second\ud
part of the study, where we measured subsidence due to mining activity in the area of Velenje.\ud
We compared subsidence results of DInSAR to those of GNSS measurements. To gain\ud
acceptable results in the second part of our study, we had to reduce the test area down to a\ud
small urban part of Šaleška valley. Some of the final DInSAR results were close to the GNSS\ud
subsidence values. Low coherence and problematic phase unwrapping reduced the quality of\ud
our results greatly, but we estimate that atmospheric influence on phase has also contributed\ud
to the data quality degradation. Results of this study offer a good starting point for those who\ud
wish to use Sentinel-1 data for radar interferomtery, especially in areas with dense vegetation
Geodetic work in the construction of the precast facility
Full text linkThis thesis presents geodetic works during the construction of a precast facility with an\ud
emphasis on the description of the practical implementation of mapping out a facility. The\ud
content of the thesis is divided into three sections. The first section describes the legal basis\ud
which specify the geodetic works in construction of buildings. The concepts of construction,\ud
which a geodetic surveyor should be very familiar with, are listed and explained. Instruments\ud
and software used for mapping out a facility and its surroundings are described in\ud
continuation. The main section presents a method for stabilizing a geodetic network, which\ud
served surveyors on the field as a base for carrying out the necessary works. A method of\ud
polar mapping is described as well as the accuracy of mapping by using this method. The\ud
practical section of the thesis relates to the work of a surveyor in the field as well as to an\ud
explanation of the use of software in mapping out a facility. Surveying of the terrain was\ud
carried out for the purpose of calculating the volume of the spoil. The final section presents a\ud
method for calculating the volumes of the spoil and the results of calculations
Seismic analysis of steel cylindrical liquid storage tanks
Full text linkIn my master thesis we did seismic analysis of a steel cylindrical liquid storage tank\ud
according to the Eurocode standards. We used procedures suggested in the standard for\ud
evaluating seismic effects on the structure. Eurocode standard explains the procedure for\ud
seismic analysis in details in the draft version of the Eurocode 8; Part 4: Silos, tanks and\ud
pipelines. We checked the background of the suggested equations in the standard. We\ud
derived the Laplace differential equation, which is used for solving hydrodynamic pressures.\ud
Further we explain and show the boundary conditions of the Laplace equation for solving\ud
specific pressures.\ud
With procedures in the standard we get pressures, which are acting on the wall and the\ud
bottom plate of the storage tank. We use the evaluated pressures for numerical analysis of\ud
the storage tank. Analysis was carried out in the software Abaqus. We tried to figure out how\ud
does the storage tank behaves under seismic activity. At the end we show the deformed\ud
shape of the storage tank under seismic load
Impact of water level pivot point on operation of HPP reservoirs
Full text linkTo ensure safe operation of hydropower plant (HPP) in all conditions, every HPP has to have\ud
defined operation concept. Operation concept is always defined for starting conditions in\ud
which HPP and its reservoir starts to operate. Based on the selected operation concept a set of\ud
operating rules is applied. As a result of the selected operating concept and designed set of\ud
operation rules a water level pivot point appears in HPP reservoir. Pivot point represents the\ud
point in the reservoir, where the water level remains constant, regardless the increase or.\ud
decrease of the flow in the river. Pivot point appears only at times, when HPP operates in\ud
accordance with designed set of operation rules. But with the construction of HPP, hydraulic\ud
conditions of the river are altered. Consequently of that a process of sedimentation begins in\ud
the reservoir. In this assignment the impact of sedimentation on the initial location of water\ud
level pivot point and thus on starting operation concept is analyzed with methods of hydraulic\ud
modeling. Hydraulic calculations are performed for theoretical example of HPP in a reservoir\ud
with simplified geometry. Changes in reservoir's bottom and hydraulic roughness are\ud
observed and their impact on the starting operating concept is investigated. By performing\ud
calculations for this example, we obtaine basic knowledge regarding how the various changes\ud
influence the water level pivot point and the level of impact on operation concept. The results\ud
are later validated with calculations for the hydraulic model of HPP Boštanj. Based on the\ud
results from both calculations, the analysis were made. The analysis explains the impact of\ud
sedimentation on the location of water level pivot point, the implications on operation concept\ud
and how the effects can be mitigated
Analysis of implementation of ISO 9001 and ISO 14001 standards in Slovenian construction industry
Full text linkThe presented research focuses to the implementation of quality and environmental management\ud
standards, that comply to the standards ISO 9001:2008 and ISO 14001:2004, into construction\ud
contracting companies and client organisations. It is limited to Slovenia that can be considered as a\ud
typical representative of construction industry in countries that joined European Union after 2004.\ud
In order to carry out the analysis of EMS implementation for a casy study - selected construction\ud
company, the method of interview was used as the research tool. Further, web-based survey was used\ud
to determine the level of ISO 14001-compliant EMSs and level of ISO 9001-compliant QMSs in\ud
construction contracting companies and client organisations. It was found that the investors, contractors\ud
and designers have similar views on environmental issues. They are aware of the problem, so they want\ud
their work to include environmental management policy. Contracting companies are mostly concerned\ud
with waste management, where they see the greatest opportunity for cost rationalization.\ud
In the online survey, it was found that the having standard ISO 9001:2008 increasing the competitiveness\ud
of enterprises, in an interview with the selected construction company it was found that it had already\ud
implemented of quality, that complay to the standards ISO 9001:2008 a good basis for the introduction\ud
environmental management standards, that complay to the standards ISO 14001:2004
Establishment of floor ownership
Full text linkAfter the socioeconomic system had been changed in 1991 the right of ownership and land registry seemed to gain a much greater importance. In that time the concept of floor ownership has also started to develop, but after 25 years a significant number of multi-unit buildings without the established floor ownership still exist in Slovenia. In this thesis both theoretical background and practical solutions for establishing a floor ownership are presented, furthermore, possible causes for an inaccurate establishment of floor ownership are offered.\ud
The first part of Graduation Thesis consists of an overview of property law codes and regulations, which comprise detailed instructions for creating project documentations and legal transactions. Explanations and definitions of basic terminology concerning floor ownershipwith are being offered. Real estate cadastres and registries are also presented in the first part of the thesis. Based on three\ud
practical examples the second part consists of a walkthrough of establishing a floor ownership, divided in four major steps in the process of establishing a floor ownership – editing land cadastre data, entering new data in buildings cadastre, designing a legal transaction and land registry entries
Analysis of housing preferences as factors of decision about residential status in Slovenia
Full text linkIn my thesis paper I have studied different factors shaping the housing market trends in Slovenia. An online-survey-based analysis of housing preferences has been performed, classifying the respondents into three categories based on the type of their household type, their head householder and the current residential status. I have also carefully considered their views of different factors influencing the resolution of residential issues, subduing them to comparison and evaluation. Furthermore, I have researched the acceptability of the tenancy and owner-occupancy statuses amongst Slovenes, as well as elaborated on their advantages and disadvantages.\ud
Factors most commonly decisive with one's residential status are: housing prices, income, permanent employment, household size, neighbourhood, accessibility of city centres as well as sufficient privacy and the feeling of safety. The majority of respondents have given more importance to non-commercial factors, however, the price often plays a crucial role in making the final decision.\ud
A great number of survey participants have voiced their ambition for estate ownership, thus considering all other forms merely temporary solutions. The key motive behind it is free and independent decision-making as well as arranging of the owned dwelling. Nonetheless, they do admit to certain advantages of tenancy and consider it a relatively equivalent substitute to ownership. The results of the study show that many households resolve their residential issue by settling in an independent or shared dwelling of either one's own or partner's parents
Analysis of the Impact of Airborne Laser Scanning Geometry on the Quality of Digital Terrain Model Determination
Full text linkAirborne laser scanning is nowadays one of the most used technologies for data collection of the shape of the Earth´s surface. Point cloud as a result of laser scanning is often used to produce high-quality digital terrain models (DTM), whose accuracy is evaluated in the analysis process. \ud
In the thesis we discussed the influence of the geometry of laser scanning on determination of the DTM´s altitude component on two different types of grounding, meadow and asphalt, in testing area in Radovljica. Within each area we discussed two data sets, strip point clouds and georeferenced point clouds. We analyzed the impact of the height of the recording platform over the terrain, the size of angle from nadir and distance from the GNSS ground reference station on the geometry of laser scanning. The height comparison was based on check points, measured in\ud
the field. Based on the analysis of the quality of the DTM, the results of which are the measures of statistical dispersion, and the calculated geometric parameters, the figures were plotted, and those are the main way the results are displayed. Final findings regarding the size of each effect on the quality of the determination of point positions based on airborne laser scanning are given in\ud
the conclusion