Results 81 to 90 of about 236,647 (162)

Vibration of railway bridges in the audible frequency range

, 2009
The noise level associated with a train travelling on a bridge is normally greater than that for a train travelling on plain track. It is sometimes the bridge noise that causes the highest levels of disturbance to people in the vicinity or triggers ...
Herron, David
core   +1 more source

Low-carbon solid waste materials for railway sub-ballast layers: a review of mechanical performance, sustainability and regulatory gaps [PDF]

Railway Sciences
PurposeThis paper presents a comprehensive systematic review of low-carbon solid waste materials applied in railway sub-ballast layers, aiming to critically assess their mechanical performance, durability, environmental benefits and regulatory readiness.
Raphael Lúcio Reis dos Santos, Conrado de Souza Rodrigues, Flavia Castro de Faria, Matheus Basilio Silva Gaia, Carla Cristina Faria Silva   +4 more
doaj   +1 more source

The behaviour of railway level crossings: insights through field monitoring

The development of reliable methods for measuring deflections as trains pass has enabled valuable insights into railway track behaviour to be gained.
Powrie, W., Roberts, C., Watson, G.V.R, Le Pen, L., Yeo, G., Weston, P.   +5 more
core   +1 more source

The influence of structural response on ballast performance on a high speed railway

, 2014
Track for modern ballasted high speed railway lines typically uses continuous welded rail with continuous ballast. Continuous ballast is often specified over features involving discontinuity of track support including structural movement or expansion ...
Powrie, W., Hayward, M., Thompson, D.J., Watson, G.V.R, Le Pen, L., Morley, S., Milne, D.   +6 more
core   +1 more source

Thermal–environmental effects on degradation of railway ballast aggregates: a climate change perspective

Railway Engineering Science
Climate change represents one of the most significant challenges affecting the behavior of materials and infrastructures. This phenomenon can lead to excessive increases or decreases in temperature, heightened sandstorms, increased sulfate attacks and ...
Hamidreza Heydari, Morteza Esmaeili, Sina Nadermohammady   +2 more
doaj   +1 more source

Feasibility studies in relation to the IMO Ballast Water Convention [PDF]

, 2009
This project is aimed to develop possibilities to overcome the difficulties which arise from the implementation of the Ballast Water Convention (IMO 2004).
Karman, C.C., Kaag, N.H.B.M., Tamis, J.E.   +2 more
core  

Correlation Analysis of Railway Track Alignment and Ballast Stiffness: Comparing Frequency-Based and Machine Learning Algorithms

Algorithms
One of the primary challenges in the railway industry revolves around achieving a comprehensive and insightful understanding of track conditions. The geometric parameters and stiffness of railway tracks play a crucial role in condition monitoring as well
Saeed Mohammadzadeh, Hamidreza Heydari, Mahdi Karimi, Araliya Mosleh   +3 more
doaj   +1 more source

Shape analysis of railway ballast stones: curvature-based calculation of particle angularity. [PDF]

Sci Rep, 2020
Suhr B, Skipper WA, Lewis R, Six K.
europepmc   +1 more source

Performance Evaluation of Nigeria Railway Track Ballast Under Simulated Operational Conditions

Advances in Civil Engineering
Over time, most research on railway track performance has focused mainly on rail and track geometry, with a few considering the damage or degradation occurring at the substructure level.
Stephen Adeyemi Alabi, Thomas Stephen Ijimdiya, Joseph Olasehinde Afolayan, Oladunni Abosede Daramola, Tolulope Abidemi Alabi, Rahman Tunde Agbede, Ayodeji Stanley Olowoselu, Jeffrey Mahachi, Chinwuba Arum   +8 more
doaj   +1 more source

Simple particle shapes for DEM simulations of railway ballast: influence of shape descriptors on packing behaviour. [PDF]

Granul Matter, 2020
Suhr B, Six K.
europepmc   +1 more source