Sökning: "ballastless tracks"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden ballastless tracks.

  1. 1. Brobanor och dess egenskaper för kommande höghastighetsjärnväg : Brobanors användning och egenskaper i samband med höghastighetsjärnväg

    Kandidat-uppsats, KTH/Byggteknik och design

    Författare :Haris Zubanovic; Hajk Saakyan; [2023]
    Nyckelord :Bridge lanes; cost; high-speed railway; maintenance; precast bridge elements; Brobanor; höghastighetsjärnväg; kostnad; underhåll; prefabricerade broelement;

    Sammanfattning : SammanfattningSvensk järnväg har aldrig varit mer belastad och trafikerad än idag, och värre kommer det att bli. Det har inte pågått några större investeringar i svensk järnväg sen 1990-talet, effekterna av den strategin börjar bli alltmer uppenbar. LÄS MER

  3. 2. Simulation of railway infrastructure with asphalt layer for tracks in Sweden

    Master-uppsats, KTH/Byggvetenskap

    Författare :Aleksandra Kuksova; [2020]
    Nyckelord :Ballasted track; bituminous mixture; bituminous sub-ballast; temperature; railway track modelling; finite element analysis. v;

    Sammanfattning : With the introduction of high-speed trains over the past few years, as well as withan increase in traffic loads and volumes, the attractiveness and competitiveness ofthe railway transport system have increased. This leads to the need to develop newcost-effective ways in railway construction, providing an increase in the life cycle ofthe railway track and reducing the need for maintenance. LÄS MER

  4. 3. Evaluation and comparison of ballastless track systems with regards to system and performance characteristics

    Master-uppsats, KTH/Spårfordon

    Författare :Willand Björkquist; Ismayil Janjua; [2020]
    Nyckelord :;

    Sammanfattning : As axle loads and speeds constantly increase in rail transport, new track systems are being developed. One such development is the ballastless track system. LÄS MER

  5. 4. Comparison of ballasted and ballastless bridges for high speed trains

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :David Matos Sánchez; Maša Nikolic; [2016]
    Nyckelord :High-speed train; concrete bridge; beam bridge; dynamic; 3D dynamic;

    Sammanfattning : The purpose of the project is to investigate the difference in performance between ballasted and ballastless railway bridges dedicated to high speed trains by taking into account both static and dynamic requirements. The main questions are: a) whether choosing a ballastless bridge results in a more slender section due to the lower self-weight b) if the design of bridges for high speed trains is governed by the static or by the dynamic requirements. LÄS MER

  7. 5. High-speed railway embankments : a comparison of different regulation

    Master-uppsats, KTH/Jord- och bergmekanik

    Författare :Angelica Alamaa; [2016]
    Nyckelord :High-speed; railway; embankments;

    Sammanfattning : Swedish transport administration initiated this Master Thesis project and the aim was to compare regulations for the design of high-speed railways from three European countries: France, Germany and Spain. The reason why this is of interest for the Swedish transport administration is the design of the first Swedish high-speed railway, called Ostlänken. LÄS MER