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Intelligent Control Methods in Automation of Process of Construction Machines Control
Vaverka, Michal ; Kopecký, Zdeněk (referee) ; Voštová, Věra (referee) ; Škopán, Miroslav (advisor)
This work deals with the possibility of use of intelligent methods in construction machines control. These methods are based on GPS in combination with using laser and ultrasonic technology. There is in detail described especially control by robotic total station and 3D control, which includes digital model of construction site. The new trends of control are especially applied on the vibratory rollers. There are taken into consideration: achievement of sufficient degree of compaction on the basis of on-line information about conditions of subsoil.
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Technological stage of the gross superstructure of the apartment house in Prague - Dablice
Kucsera, Adam ; Kopecký, Lukáš (referee) ; Šlanhof, Jiří (advisor)
The work adresses the technological stage of the gross superstructure of the apartment house in Prague – Dablice. The house consist of reinforced concrete structure on the ground floor, three other floors in a brick form of pramic blocks Porotherm, ceilings above the second and third floor are composed of Spiroll prefabricated ceiling panel and roof structure is made up of gang nail trusses, thanks to this composition of house, it was necessary to address how to storage materials on the site, and also the arrival, departure and parking of vehicles. Technological regulativ is focused on concreting of the reinforced concrete monolithic framework.
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Experimental testing of elasticity modulus for base layers of pavements
Kotas, Vojtěch ; Mondschein,, Petr (referee) ; Stehlík, Dušan (advisor)
The thesis is focused on experimental testing of resilient modulus Mr with triaxial test of chosen unbounded and bounded mixtures used in the sub-base layer of pavement. The reason of testing is to compare results with TP 170 – pavement construction guide containing commonly used values of resilient modulus Mr. Thesis should check if those values are correct and real. For classification of chosen materials there are used another tests like grain size distribution, compaction, California bearing ratio CBR for unbounded mixtures and compressive strength for cement-bounded mixtures.
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Considerations of the laboratory reference density for fine soil
Grmela, Jan ; Pácha, Petr (referee) ; Stehlík, Dušan (advisor)
The aim of this thesis is to describe the field of the soil compaction. The thesis introduces the particular test methods of the soil compaction, their principles and the implementation techniques. The practical part deals with the examination of a fine-grained sample in a laboratory condition. The compaction is achieved by various methods. In accordance with the compaction results, the soil is further examined for the Immediate Bearing Index (IBI) and California Bearing Ratio (CBR) after four day long saturation in water. The examination of the achieved results and finding the most suitable method for the fine-grained material is the outcome of the thesis.
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Construction technological project of sports hall construction
Tkáč, Jiří ; Vlčková, Jitka Laura (referee) ; Diaz, Yvetta (advisor)
The thesis deals with Komenského Street sports hall construction in Lysá nad Labem. Although partially dealing with construction of all parts, in detail it studies gym construction, focusing on time management, technology and resources of implementation. The thesis is divided into the drawing and text parts. The former includes site facilities design and building situation. The latter consists of the main part construction project implementation study, itemized budget, time schedule, technological regulations, inspection and testing plan for the implementation of the main construction part 1st floor reinforced concrete columns and walls, construction machines and mechanisms design as well as time and financial schedule.
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Design of Light Tandem Roller
Paška, Tomáš ; John, David (referee) ; Rubínová, Dana (advisor)
The master thesis deals with the design of a light tandem roller with an electric drive. The final design of the machine is designed in regard to the knowledge from design and technical analysis and the shortcomings of current rollers. The purpose of this work is to design a tandem roller which will respect the ergonomic requirements of the operator.
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Asphalt recycled material to cold asphalt mixtures
Kotas, Vojtěch ; Varaus, Michal (referee) ; Stehlík, Dušan (advisor)
The thesis is focused on the use of R-material into cold asphalt mixtures, which is modern method using recyclate into subgrade of roads. Concretely, it deals with basic properties of R-material, such as grain size and compaction. It practically verifies and compares properties of cold asphalt mixtures with cement, asphalt emulsion or with combination of this two binders. As reference testing method was chosen test of tensile splitting strength.
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Making sand moulds and cores for casting
Katrňák, Jiří ; Kaňa, Václav (referee) ; Pernica, Vítězslav (advisor)
Bachelor thesis describes various methods for the production of sand molds and cores in foundry and basic concepts associated with this issue. Due to the large number of production methods are described only basic and most widespread methods. The work includes the design and manufacture of cast-iron grate for the stove, made into a mixture of bentonite and self-hardening mixture AlpHasetTM.
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Powder Metallurgy and Fundamentals of Sintering Process
Foltýnek, Jaroslav ; Pouchlý, Václav (referee) ; Čelko, Ladislav (advisor)
The bachelor thesis deals with the powder metallurgy and sintering process of metallic materials. The work is a recherche on this topic and includes a basic comprehensive insight into the entire production process consisting of the overview on the material powder processing techniques, introduction of the basic parameters of sintering process and mechanisms involved during sintering influencing the final compact product formation. The sintering process is in work divided into two basic categories, solid state and liquid-phase sintering.
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