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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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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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Porovnání orebné a bezorebné technologie zpracování půdy z hlediska jejího zhutnění
MACH, Václav
The bachelor thesis focuses on technologies of soil cultivation which are nowadays most frequently used in our country and what is their influence in soil compaction. It describes reasons of the origins of soil compaction, impacts of the compaction and the effect of compaction on soil as a unit. It also focuses on procedure? against unwanted compaction or its following elimination. Subsequently, the thesis describes basic work operations which are plowing and aeration. There are details of the principle how the plough works, basic types of ploughs and the way how we can divide plowing. There are also methods of plowing which are applied in different conditions on land. Last but not least, the thesis points out advantages and disadvantages of this most common soil cultivation. It deals with technologies of aeration as well as it deals with machines which are able to cultivate soil or with technologies of soil cultivation and their advantages and disadvantages in work without a plough. The field experiment which has been done for drawing up of this bachelor thesis focuses on comparison of ploughing and non-ploughing technologies of soil cultivation in a way of its compaction. There is evaluation of the penetrometric resistance, of the achieved depth in measurement and the soil moisture. These values have been measured on a field which was divided according to the technology of soil cultivation. The first part was done conventionally with the plough and in the second part the plough was replaced with the aeration. The results of the measurement were then compared with the whole soil profile of the measurement, then in the depth of 20 cm and finally with rest the horizon of measurement. Values and comparisons of the individual measurements are for better illustration noted in tables and marked on graph.
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Vybrané fyzikální parametry hodnocení antropogenního zhutnění půd
Indrová, Michaela
Bachelor thesis is aimed at evaluation of anthropogenic changes in three selected subtypes of Chernozems. Object of study were -- Luvi-haplic Chernozem (Praha), Luvi-haplic Chernozem (Unčovice) and Calcaric Chernozem (Velešovice). We followed -- aggregates stability, texture, porosity, bulk density, total organic carbon content, soil reaction and buffering capacity. Results showed that studied heavy textured soils had high ability to pedocompaction. Agro-ecological limits were overstepped in Porosity, bulk density and total content organic carbon decreased. Exchangeable soil reaction also decreased and soil acidity increased. Buffering capacity again acids was also lower. Critical limits of pedocompaction were not overstepped but in subsoil horizons values were near to the limits.
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Intelligent Control Methods in Automation of Process of Construction Machines Control
Vaverka, Michal ; 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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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.
|
|
|
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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