Results 31 to 40 of about 1,747 (202)

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

open access: yes, 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   +40 more
core   +1 more source

Polymer Injection Rehabilitation Technology for Lifting Differential Settlement of Turnout Ballastless Track

open access: yesMATEC Web of Conferences, 2018
The turnout ballastless track is an advanced track structure with high stability and integrity. However, due to complicated geological conditions, local groundwater level declined, and many other unavoidable objective reasons, the roadbed foundation of ...
Liu Jing   +7 more
doaj   +1 more source

Calculation of Reasonable Tension Value for Longitudinal Connecting Reinforcement of CRTSII Slab Ballastless Track

open access: yesApplied Sciences, 2018
There is confusion in the original design concept for the tensioning of longitudinally connected reinforcement of the CRTSII (China Railway Track System) slab ballastless track.
Long Chen, Jinjie Chen, Jianxi Wang
doaj   +1 more source

Dynamic Analysis of CRTS II Ballastless Track-Vehicle System Based on Moving Unit Method

open access: yesApplied Sciences, 2023
On account of the influence of the discontinuity of CRTS II ballastless track slabs and the discrete support of track pads on the high-speed rail vehicle-ballastless track system, a vibration analysis calculation model of the ballastless track-vehicle ...
Tuo Lei   +4 more
doaj   +1 more source

Fully three-dimensional analysis of high-speed traintracksoil-structure dynamic interaction [PDF]

open access: yes, 2010
In this paper, a general and fully three dimensional multi-body-finite element-boundary element model, formulated in the time domain to predict vibrations due to train passage at the vehicle, the track and the free field, is presented.
Domínguez Abascal, José   +2 more
core   +1 more source

Analytical Approach to Describe Properties in Transition Zones Between Ballasted and Non-Ballasted Track [PDF]

open access: yes, 2022
Norway has for a long time used railways as a means of transport. This method of transportation been used to haul raw materials such as wood and ore.
Ågotnes, Joachim Jørgensen
core  

Investigation of asphalt concrete used as the ballastless track substructure in long-span railway bridges

open access: yesCase Studies in Construction Materials, 2022
The application of asphalt concrete is common in railways. However, the asphalt concrete substructure (ACS) is mainly used above the subgrade of general railway.
Gang Liu   +4 more
doaj   +1 more source

Vertical Random Vibration Analysis of Track-Subgrade Coupled System in High Speed Railway with Pseudoexcitation Method [PDF]

open access: yes, 2016
In order to reduce the ground-borne vibration caused by wheel/rail interaction in the ballastless track of high speed railways, viscoelastic asphalt concrete materials are filled between the track and the subgrade to attenuate wheel/rail force.
Jiangang Shen   +5 more
core   +1 more source

Investigation into the critical speed of ballastless track [PDF]

open access: yesTransportation Geotechnics, 2019
Abstract As train speeds are increased, the issue of the critical speed must be faced, especially when tracks run across soft ground. This is the phenomenon describes the amplification of the track deflections due to coincidence of the train speed with the wavespeeds of the underlying ground.
Jing Hu   +3 more
openaire   +3 more sources

Laboratory Investigation of the Temperature-Dependent Mechanical Properties of a CRTS-Ⅱ Ballastless Track-Bridge Structural System in Summer

open access: yesApplied Sciences, 2020
To study the mechanical properties of the China Railway Track System type II (CRTS-II) ballastless slab track structure, a 1/4-scale specimen of a CRTS-II slab ballastless track-32-m standard prefabricated simply supported box girder bridge with three ...
Lingyu Zhou   +5 more
doaj   +1 more source

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