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Foundation of traffic embankments on clayey landfills of SHR
Mužík, Vlastimil ; Boháč, Jan (advisor) ; Kudrna, Zdeněk (referee)
Title Foundation of traffic embankments on clayey landfills of SHR Abstract This Bachelor thesis was worked out for Faculty of Science of Charles University in Prague led by Ing. J. Boháč. The thesis deals with motorway embankment over the landfill A. Zápotocký, which is part of motorway strech D8-0807/I. The thesis compiles research results, monitoring of trial embankments and monitoring performed by the own construction motorway embakment. Based on these data is determined the creep portion of the total settlement.
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Analysis of the factors influencing the geotechnical material parameters of MSW landfills
Sedláček, Václav ; Kudrna, Zdeněk (advisor) ; Sedláček, Jaroslav (referee)
Geotechnical parameters of material of Municipal Solid Waste (MSW) landfill are very variable. This work searches by science researches the influences for these parameters. The identification of parameters is obviously difficult and needs special devices capable to measurement of big volume of material. Influence for geotechnical parameters have composing of MWS, climatic conditions, of the MSW landfill is cover or not, if has landfill isolation on base and on top or not or if is landfill drained. Important factor is existence of biodegradation processions on landfill. There are important the velocity of biological component and time.
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Analysis of stability problems in the side slope of open pit mine ČSA
Hanuljak, Vít ; Kudrna, Zdeněk (advisor) ; Rybář, Jan (referee)
Our current society is very energetically intensive. The location of the Czech Republic, its natural conditions and mineral resources, offers one of the few options for its acquisition, which is mining and coal processing. The effort is to get this important raw material economically as convenient as possible and also with limited negative environmental consequences. One of these options is mining of brown coal in open pit mines. Side slope is an integral part of the open pit mines and this thesis deals with the side slope of one of the largest open pit mines in the Czech Republic, of The open pit mines of the CSA. It is the base of the Ore Mountains, geologically very difficult terrain in which it is necessary to carry out the individual extraction steps very carefully, to avoid disproportionate economic and environmental damage. The company Czech Coal Group, Litvínovská uhelná, a.s., which deals with coal mining in the quarry of the CSA, constantly monitors this area and coordinates the work. In spite of this fact, there are smaller or larger landslides in the side slope. The geological and hydro geological conditions of the area are analyzed in this diploma thesis. The consequences of natural and climatic conditions are listed in general and in specific cases. Knowledge of experts of the largest...
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Slope movements in Semily region
Kujan, Ondřej ; Novotný, Jan (advisor) ; Kudrna, Zdeněk (referee)
In this thesis author deals with slope movements affecting the area around the river Jizera near the town Semily in Liberecký region. The aim of the work is to gather available resources and evaluate the results of research carried out so far in this area. Author also tries to point out the threat of some partially built-up slopes. They could be activated in the future for example by influence of increased precipitation or imprudent human activity.
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Foundations on clay fills of North Bohemian coal mines
Novotný, Václav ; Boháč, Jan (advisor) ; Kudrna, Zdeněk (referee)
The work is focused on the issue of using landfills as building sites and the experiences so far gathered with founding buildings on them. It describes in brief the geology of the overburdens of coal seams and the processes by which the spoils are treated during mining and deposition of landfills. The work focuses on the properties of the spoils and specific attributes of the geological engineering survey of landfills. The goal of the work is the accumulation and evaluation of available experience with building on landfills of north Bohemian coal mines. Interpretation of the available information can lead to an increase of interest of investors in these localities and a decrease in building costs on landfills. A background research of literature on the topic that is a part of this work can be used as grounds for the optimization of building on clay landfills.
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Impact of the Global Crisis on Banking Sector Soundness: Czech Republic, Hungary and Poland
Zsigraiová, Monika ; Geršl, Adam (advisor) ; Kudrna, Zdeněk (referee)
The theses assesses the influence of the Crisis on the soundness of banking sector in the Czech Republic, Hungary and Poland. The analysis using bank-specific and country-specific data employs the descriptive and econometric tools. Especially, the fixed-effects method helps to reveal an impact of the Crisis on gross loans, liquid assets, non-performing loans, return on average asset and capital adequacy ratio. The results suggest that the crisis affected negatively the bank soundness of each discussed country, specifically the macroeconomic transmission channel was proven to be significant in all studied countries. The funding transmission channel was significant only in case of Poland.
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Monitoring of settlement of embankment subsoil
Karlín, Petr ; Novotný, Jan (advisor) ; Kudrna, Zdeněk (referee)
: During each transport buildings are used embankments, therefore it is important to carry out a detailed geological survey. The task of the survey is to determine the soil properties (soil) for such embankments, bridges and other objects depend on the load. For many objects is undesirable reduction embankment over time, this phenomenon is mainly caused by the consolidation of underlying layers. Parameters find out from the engineering-geological survey is calculating for better prediction of settlement which is based on the value of consolidation. In the following monitoring is measured by change in soil elevation relative to a reference point. These values are further processed and compared with the calculation. Main aim of this work is to unify the addiction values of loading, settlement and time for 90% consolidation.
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Secondary raw materials for construction and recultivation of averse impacts of anthropogenic activity on the environment
Suchomelová, Leona ; Kudrna, Zdeněk (advisor) ; Slomek, Jiří (referee)
This work concern utilization of waste in order to produce secondary raw materials and its trying to describe the possible applications of these materials in the best way to meet the economic and ecological requirements. It contains a brief description of the characteristics of secondary raw materials, which have the greatest benefit for use in the construction, which are especially large volume raw materials produced from industrial waste. It focuses mostly on fly ash, slag produced by blast furnace and steelworks and waste produced in construction sites. Use of secondary raw materials are divided on production of raw materials produced from fly ash and slag, on construction of roads, where it's possible to apply large volumes of fly ash, slag and other secondary materials, and construction and reclamation of waste dumps and wasteponds. It also concerns negative influence of secondary raw materials to the environment, levels of pollutants in solid and the water extract.
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Modern alternate types of sealing barriers analysis for landfills
Matoušová, Jana ; Sedláček, Jaroslav (referee) ; Kudrna, Zdeněk (advisor)
People and waste on our planet is constantly increasing, and so despite the unattractiveness topic the landfills are the current and noticeable issue. This paper deals with the standards and laws relating to landfills, from which they depend for the creation and construction. I should present an overview of the different variants of application materials to the construction of the landfill could be used, and today sealing landfills are available for engineers. But just I do not engage in alternative sealing options as well as standard which are still widely used methods of sealing landfills. To the situation in the Czech Republic stated in a global context, I give examples of coping with the landfill in other countries such as Chile, where they try to use local raw materials. What is landfill waste and security are concerned; our model may be one of our neighbours - Germany, which in this part is devoted to most extensively. Each of these options has its pros and cons. I leave at will and view of each reader to evaluate the advantages and disadvantages of each solution. It is also possible to adhere to the already proven and well used ways of depositing, in their modernized and improved form.
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