|
|
New possibilities of using secondary raw materials for the renewal of the railway substructure
Buřičová, Karolína ; Luňáček,, Martin (referee) ; Drochytka, Rostislav (advisor)
The work is devoted to new possibilities for the recovery of secondary raw materials and track bed waste with a combination of both suitable and unsuitable soils. The aim of the thesis is to develop a new functional sample suitable for the recovery of a substructure of railways based on secondary raw materials. The theoretical part addresses the issue of the use of soil and secondary raw materials as the base layers of railway structures, and is focused on the possibilities of soil adjustments or enhancement. The practical part is focused on the analysis and selection of potentially suitable raw materials, the design of new raw material mixtures containing concrete recyclables, waste from cleaning the auto mixer and waste from cleaning the rail bed. Further, to modify the mixtures designed with fluid ash from biomass combustion to achieve higher toughness. Then they will be experimentally verified and based on the results the optimal formula for use in the solid of the railway bottom will be determined. Final optimal recipe achieving basic required parameters for use in active zone without the requirement for frost resistance and ecology is composed of 30 % of F4-CS, 4 % of portland cement CEM II-B/LL, 3 % of lime hydrate, 70 % of recycled concrete and 10 % of fluid ash from biomass combustion.
|
|
|
Elaboration of documentation of the actual construction of the railway construction in the context of BIM
Vystavěl, Ondřej ; Raška, Jakub (referee) ; Bureš, Jiří (advisor)
The thesis deals with the creation of the geodetic part of the as-built documentation (G-DSPS) of the Reconstruction of the Šumice stop and the process of its reworking into the Building Information Modelling (BIM) environment. The first part of the thesis deals with the creation of the G-DSPS according to the standardised internal regulations of the Railway Administration (SŽ). The second part of the thesis deals with the conversion of the G-DSPS into the BIM environment. The form in BIM is currently in a nascent state for transport constructions, therefore it was necessary to analyse the current state from available information, especially from documents and webinars of the State Fund for Transport Infrastructure (SFDI) and training courses of the Railway Administration. Some of the options analysed for this transfer were tested using G-DSPS data. The result of the thesis is a developed G-DSPS according to the valid regulations of the Railway Administration and its subsequent transfer to the BIM environment. The most important finding of the thesis is that this conversion is possible, but currently highly inefficient with a lot of technical pitfalls that will need to be resolved by the time the procurement process in BIM is launched.
|
|
|
Stabilization of the base layers of roads by using secondary raw materials
Buřičová, Karolína ; Kulísek, Karel (referee) ; Drochytka, Rostislav (advisor)
The bachelor's thesis deals with the up-to-date subject of secondary raw material usage. The aim of this thesis is to suggest a potential way of these materials’ usage by stabilization of base courses of road or railway constructions. Parameters of individual primary and secondary commodities are evaluated and the acquired knowledge in the field of stabilization is presented. An optimal technology for stabilization is suggested and applicability of used materials and their subsequently prepared mixtures is experimentally verified in the experimental work of this thesis.
|
|
|
Elaboration of documentation of the actual construction of the railway construction in the context of BIM
Vystavěl, Ondřej ; Raška, Jakub (referee) ; Bureš, Jiří (advisor)
The thesis deals with the creation of the geodetic part of the as-built documentation (G-DSPS) of the Reconstruction of the Šumice stop and the process of its reworking into the Building Information Modelling (BIM) environment. The first part of the thesis deals with the creation of the G-DSPS according to the standardised internal regulations of the Railway Administration (SŽ). The second part of the thesis deals with the conversion of the G-DSPS into the BIM environment. The form in BIM is currently in a nascent state for transport constructions, therefore it was necessary to analyse the current state from available information, especially from documents and webinars of the State Fund for Transport Infrastructure (SFDI) and training courses of the Railway Administration. Some of the options analysed for this transfer were tested using G-DSPS data. The result of the thesis is a developed G-DSPS according to the valid regulations of the Railway Administration and its subsequent transfer to the BIM environment. The most important finding of the thesis is that this conversion is possible, but currently highly inefficient with a lot of technical pitfalls that will need to be resolved by the time the procurement process in BIM is launched.
|
|
|
New possibilities of using secondary raw materials for the renewal of the railway substructure
Buřičová, Karolína ; Luňáček,, Martin (referee) ; Drochytka, Rostislav (advisor)
The work is devoted to new possibilities for the recovery of secondary raw materials and track bed waste with a combination of both suitable and unsuitable soils. The aim of the thesis is to develop a new functional sample suitable for the recovery of a substructure of railways based on secondary raw materials. The theoretical part addresses the issue of the use of soil and secondary raw materials as the base layers of railway structures, and is focused on the possibilities of soil adjustments or enhancement. The practical part is focused on the analysis and selection of potentially suitable raw materials, the design of new raw material mixtures containing concrete recyclables, waste from cleaning the auto mixer and waste from cleaning the rail bed. Further, to modify the mixtures designed with fluid ash from biomass combustion to achieve higher toughness. Then they will be experimentally verified and based on the results the optimal formula for use in the solid of the railway bottom will be determined. Final optimal recipe achieving basic required parameters for use in active zone without the requirement for frost resistance and ecology is composed of 30 % of F4-CS, 4 % of portland cement CEM II-B/LL, 3 % of lime hydrate, 70 % of recycled concrete and 10 % of fluid ash from biomass combustion.
|
|
| |
|
|
Stabilization of the base layers of roads by using secondary raw materials
Buřičová, Karolína ; Kulísek, Karel (referee) ; Drochytka, Rostislav (advisor)
The bachelor's thesis deals with the up-to-date subject of secondary raw material usage. The aim of this thesis is to suggest a potential way of these materials’ usage by stabilization of base courses of road or railway constructions. Parameters of individual primary and secondary commodities are evaluated and the acquired knowledge in the field of stabilization is presented. An optimal technology for stabilization is suggested and applicability of used materials and their subsequently prepared mixtures is experimentally verified in the experimental work of this thesis.
|
guest ::
