Results 31 to 40 of about 6,118 (211)

Reducing maintenance costs for ballasted track: Evidence from britain [PDF]

International Journal of Transport Development and Integration, 2016
Over the last twenty years, the railways in Britain have seen rapid growth, with patronage doubling and the level of train service increasing by 50%. However, these successes have also led to challenges. In particular real unit costs are estimated to have increased by 50%, with particularly marked increases in infrastructure renewal and enhancement ...
Ortega Hortelano, Alejandro, Blainey, Simon, Preston, John   +2 more
openaire   +4 more sources

Modelling railway ballasted track settlement in vehicle-track interaction analysis

Transportation Geotechnics, 2021
Abstract The geometry of a ballasted railway gradually deteriorates with trafficking, mainly as a result of the plastic settlement of the track-bed (ballast and sub-base). The rate and amount of settlement depend on a number of factors, and for various reasons are difficult to predict or estimate analytically. As a result, various empirical equations
Grossoni, Ilaria, Powrie, William, Zervos, Antonios, Bezin, Yann, Le Pen, Louis   +4 more
openaire   +3 more sources

Investigation of “Open” Superstructure Tramway Tracks in Budapest

Infrastructures, 2023
The most important thing nowadays is to use available resources to develop infrastructure as efficiently as possible. In this regard, evaluating the deterioration of tramway tracks is critical from both a technical and an economic viewpoint.
Vivien Jóvér, Zoltán Major, Attila Németh, Dmytro Kurhan, Mykola Sysyn, Szabolcs Fischer   +5 more
doaj   +1 more source

Dynamic response of a vehicle with flexible car body moving on a ballasted track

MATEC Web of Conferences, 2018
In this study, the dynamic response of a vehicle with flexible car body moving on a ballasted track is investigated. The vehicle/track interaction model is divided into two sub-systems, namely the vehicle and the ballasted track sub-system.
Wang Yingjie, Dimitrovová Zuzana, Yau Jong-Dar   +2 more
doaj   +1 more source

Effects of Redispersible Polymer Powder on Mechanical and Durability Properties of Preplaced Aggregate Concrete with Recycled Railway Ballast [PDF]

, 2018
The rapid-hardening method employing the injection of calcium sulfoaluminate (CSA) cement mortar into voids between preplaced ballast aggregates has recently emerged as a promising approach for the renovation of existing ballasted railway tracks to ...
A Qudoos, ACI Committee 304, ACI Committee 318, ASTM C109, ASTM C192, ASTM C39, ASTM C469, ASTM C666, ASTM C78, B Persson, E Sakai, F Shaker, H Choi, IW Lee, IW Lee, J Li, JA Rossignolo, JB Kardon, JF Muñoz, JH Kim, JK Norvell, JY Choi, K Kim, K McNeil, K Murao, Korean Standards Association, Korean Standards Association, L Jun, LK Aggarwal, M Wang, MF Najjar, P Galvín, R Wang, S Liu, S Miura, SY Jang, THK Kang, Y Bezin, Y Ohama, Y Zhang, Z Su   +40 more
core   +1 more source

2D train-track-bridge interaction analysis considering the effect of ballasted tracks

Tạp chí Khoa học và Công nghệ
This paper investigates the effect of ballasted tracks on the dynamic interaction between train, track, and bridge systems. A 2D interaction model is developed, incorporating detailed representations of the bridge, train, and track, with and without ...
Tran Le Anh Duc, Phan Hoang Nam, Nguyen Van My, Tran Dinh Quang, Fabrizio Paolacci   +4 more
doaj   +1 more source

Frost Heaving in Ballast Railway Tracks

Procedia Engineering, 2017
Abstract Frost heave is a well-known phenomenon in cold regions. It may happen in the wet clayey ground during winter in seasonally frozen regions and during autumn to winter in active layers in permafrost regions. The railway track upheaval, which happens in cold regions, is generally understood as due to frost heaving in subgrade layers.
Satoshi Akagawa, Michiaki Hori, Jyun Sugawara   +2 more
openaire   +1 more source

Modelling rail corrugation with specific-track parameters focusing on ballasted track and slab track [PDF]

Vehicle System Dynamics, 2011
The objective of this paper is to compare 3 types of track (high performance ballasted track, STEDEF and AFTRAV) from the corrugation growth point of view. This work has considered different vehicle speeds and track radii, and the results have taken into account the four wheels of a bogie.
Oyarzabal de Celis, Olatz, Correa García, Nekane, García Vadillo, Ernesto, Santamaría Manrique, Javier, Gómez López, Josu   +4 more
openaire   +2 more sources

Adsorption efficiency of banana blossom peels (musa acuminata colla) adsorbent for chromium (VI) removal [PDF]

, 2022
The discharge of waste from industries into water has caused heavy metal pollution posing health risk to biota such as lead and chromium (VI). Once the water has been polluted, it will limit the accessibility to clean freshwater.
A. Latif, A. F., Basri, H., Er, Y. C., Lee, T. C., Muhamad, M. S., Selimin, M. A.   +5 more
core   +1 more source

Assessment of Track Quality in Trial Test Sections by Spot and Continuous Method

Communications, 2015
The quality of track alignment and track geometry is an essential precondition of safe and economical operation of railway track. The paper provides an analysis of diagnostics of relative track geometry parameters and evaluation of measurement deviations
Michal Smalo, Libor Izvolt
doaj   +1 more source