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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Opotřebení kolejnic v úsecích se směrovými oblouky malého poloměru / Rail wear in track curves of small radii

Schneider, Martin January 2022 (has links)
The diploma thesis deals with a rail wear in curves with a small radius (R < 500 m), in the national corridor railway, between stations Blansko and Svitavy. The diploma thesis deals with the impact of the track gradient, the horizontal layout of the track, traffic composition, and direction of travel on the size of the horizontal and vertical rail wear. Also, the influence of rail steel grade is discussed in the diploma thesis.
2

Proposta de um sistema de gerência para vias férreas brasileiras / Proposal for a management system for Brazilian railways

Ildefonso, Jesner Sereni 07 February 2013 (has links)
O sistema ferroviário brasileiro é constituído por uma malha de aproximadamente 30 mil quilômetros de ferrovias, nas quais percorrem mais de 2,9 mil locomotivas e 92 mil vagões, responsáveis pelo transporte de cerca 23% da carga do país; a matriz de transportes está distorcida, uma vez que nos países desenvolvidos esse modo responde por cerca de 40% da carga transportada. A manutenção de via permanente responde por 12% a 30% do custo de operação de uma via férrea e nas ferrovias brasileiras, esse gasto ficou em torno de 300 milhões de dólares no ano de 2000, evidenciando que simples melhorias no modo como as manutenções são realizadas, implicam em grande economia para o setor. Há basicamente três tipos de manutenções passíveis de serem executadas: manutenção corretiva, manutenção preventiva e manutenção preditiva. Com o uso da gerência de vias férreas é possível determinar qual manutenção é a mais apropriada e quando se deve executá-la, de forma a utilizar os recursos financeiros disponíveis da melhor forma possível. O foco desta pesquisa está no estudo da via férrea com relação à geometria e à condição estrutural dos elementos da superestrutura e, para isso, são propostos métodos de gerência e índices de qualidade para ambos os casos. / The Brazilian railway system consists of a network of approximately 30,000 kilometers, which runs a fleet of more than 2,900 locomotives and 92,000 wagons, transporting approximately 23% of the load of the country, while in developed countries this mode accounts for about 40% of the cargo. The track maintenance accounts for 12% to 30% of the cost of operating and the cost was around $ 300 million in 2000 at railroads in Brazil, showing that simple improvements in the way maintenance are performed, imply great savings for the industry. There are basically three types of maintenance that can be performed: corrective maintenance, preventive maintenance and predictive maintenance. Using the management of railways is possible to determine which is most appropriate maintenance and when to run it in order to use the available resources in the best way possible. The main goal of this research is to study the rail with respect to geometry and structural condition of the elements of the superstructure and to this are proposed methods for management and quality indexes for both cases.
3

Proposta de um sistema de gerência para vias férreas brasileiras / Proposal for a management system for Brazilian railways

Jesner Sereni Ildefonso 07 February 2013 (has links)
O sistema ferroviário brasileiro é constituído por uma malha de aproximadamente 30 mil quilômetros de ferrovias, nas quais percorrem mais de 2,9 mil locomotivas e 92 mil vagões, responsáveis pelo transporte de cerca 23% da carga do país; a matriz de transportes está distorcida, uma vez que nos países desenvolvidos esse modo responde por cerca de 40% da carga transportada. A manutenção de via permanente responde por 12% a 30% do custo de operação de uma via férrea e nas ferrovias brasileiras, esse gasto ficou em torno de 300 milhões de dólares no ano de 2000, evidenciando que simples melhorias no modo como as manutenções são realizadas, implicam em grande economia para o setor. Há basicamente três tipos de manutenções passíveis de serem executadas: manutenção corretiva, manutenção preventiva e manutenção preditiva. Com o uso da gerência de vias férreas é possível determinar qual manutenção é a mais apropriada e quando se deve executá-la, de forma a utilizar os recursos financeiros disponíveis da melhor forma possível. O foco desta pesquisa está no estudo da via férrea com relação à geometria e à condição estrutural dos elementos da superestrutura e, para isso, são propostos métodos de gerência e índices de qualidade para ambos os casos. / The Brazilian railway system consists of a network of approximately 30,000 kilometers, which runs a fleet of more than 2,900 locomotives and 92,000 wagons, transporting approximately 23% of the load of the country, while in developed countries this mode accounts for about 40% of the cargo. The track maintenance accounts for 12% to 30% of the cost of operating and the cost was around $ 300 million in 2000 at railroads in Brazil, showing that simple improvements in the way maintenance are performed, imply great savings for the industry. There are basically three types of maintenance that can be performed: corrective maintenance, preventive maintenance and predictive maintenance. Using the management of railways is possible to determine which is most appropriate maintenance and when to run it in order to use the available resources in the best way possible. The main goal of this research is to study the rail with respect to geometry and structural condition of the elements of the superstructure and to this are proposed methods for management and quality indexes for both cases.
4

Návrh rekonstrukce železniční stanice Horní Cerekev / Design of reconstruction of the Horní Cerekev railway station

Syrový, Aleš January 2019 (has links)
The subject of the diploma thesis is to design a redevelopment of railway station Horni Cerekev, in order to meet current traffic and legislation on access of persons with reduced mobility. Two platforms with the platform edge height of 550 mm above the top of the rail have been designed. The amount of five running tracks through the station remains unchanged. Furthermore, the railway superstructure, railway substructure and conceptual design of space in front of the station.
5

Návrh propojení pardubické spojky a trati Brno hl.n. - Kutná Hora hl.n. v Havlíčkově Brodě / Design of the New Connection in Havlickuv Brod

Dohnal, Michal January 2020 (has links)
The aim of diploma thesis is design of new connection in Havlickuv Brod. New connection will enable passage without setting-back between Brno and Jihlava in Havlickuv Brod.
6

Návrh modernizace železniční stanice Vranovice pro rychlost 200 km/h / Design of modernisation of the Vranovice railway station for speed 200 km/h

Hyžák, Vít Unknown Date (has links)
This diploma thesis deals with modernization design of railway station Vranovice for 200 km/h speed according to a traffic demand and actual legislation not only in sectinon of access of people with mobility or orientation disability. The design consists of track direction and height adjustment including railway superstructure and substructure, and 2 island platforms which platform edge height is 550 mm above the top of the rail.
7

Rekonstrukce železniční stanice Chrudim / Chrudim Station Redevelopment

Filo, Martin January 2015 (has links)
The subject of the diploma thesis is to design a redevelopment of railway station Chrudim in order to meet current legislation on access of persons with reduced mobility. Two platforms with the platform edge height of 550 millimetres above the top of the rail have been designed. The amount of four running tracks through the station remains unchanged. Furthermore, the railway superstructure, railway substructure and the new drainage system was also designed.
8

Rekonstrukce žst. Podivín / Podivin Station Reconstruction

Veits, Lukáš January 2022 (has links)
This diploma thesis deals with reconstruction of the Podivín railway station. As part of the work, a new railway solution for the station will be proposed to increase the speed to 200 km / h, including the design of the railway superstructure, substructure and overall drainage. Furthermore, a total peronization will be proposed using two island platforms with a boarding edge height of 550 mm above the top of the rail.
9

Studie rekonstrukce železniční stanice Kyjov / Upgrading of Kyjov Railway Station

Prikner, Pavel January 2019 (has links)
The master´s thesis deals with the reconstruction design of Kyjov railway station. The solution is aimed at meeting the traffic requirements, modifying the layout of the platforms and access routes for the safe movement of people with reduced mobility and orientation. The proposal deals with rail crossing in accordance with current legislations. In this thesis is proposed renewal of drainage.
10

Porovnání technologií rekonstrukce traťové koleje / Comparison of Open Line Track Procedures of Works

Svrček, David January 2020 (has links)
This diploma thesis is focused on design and comparison of open line track procedures of work between stations Hranice na Moravě město and Hustopeče nad Bečvou. Subject is reconstruction of railway superstructure and substructure in kilometrage 7,785 598 to 15,016 545 (except section 8,173 463 to 8,700 000) of track n°1. The target of the thesis is to optimize open line track procedures by variation of technologies and mechanization.

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