Results 91 to 100 of about 236,647 (162)

Evaluation of Slate Waste as a Sustainable Material for Railway Sub-Ballast Layers: Analysis of Mechanical Behavior and Performance

Infrastructures
The railway industry is increasingly pressured to adopt sustainable practices, seeking alternatives to virgin natural aggregates that reduce environmental impact and lifecycle costs.
Raphael Lúcio Reis dos Santos, Conrado de Souza Rodrigues, Guilherme de Castro Leiva, Armando Belato Pereira   +3 more
doaj   +1 more source

Effects of principal stress rotation and drainage on the resilient stiffness of railway foundations

, 2013
Railway foundations play an integral role in controlling the stability of the overlying track structure and the maintenance of the overall track geometry.
Mamou, A.
core   +1 more source

Railway ballast permeability [PDF]

, 2017
Railway ballast serves as a major structural and drainage component of railroad track, but is known to degrade over time. This progressive degradation increases the amount of finer particles within the ballast over time, called fouling material, which ...
Schmidt, Scott R
core  

Sustainable valorization of solid waste materials in railway infrastructure: a systematic review

Discover Civil Engineering
The decarbonization of transport infrastructure has intensified interest in the valorization of Solid Waste Materials (SWM) as secondary resources in civil engineering.
Raphael Lúcio Reis dos Santos, Conrado de Souza Rodrigues, Janaina Aguiar Park, Marcio Mateus Pimenta, Luis Felipe dos Santos Lara   +4 more
doaj   +1 more source

Experimental Investigation the Geometric Properties of Aggregates on Ballast Flight Phenomena of Railway Track [PDF]

International Journal of Railway Research
High-speed railway tracks have expanded significantly across the world in recent years. The increase in train operating speeds imposes considerable aerodynamic forces on the track, which can lead to several technical issues—one of the most important ...
Hamidreza Heydari, Mohammadreza Talaee, Aynaz Naseri   +2 more
doaj  

Discrete modelling of railway ballast

, 2014
For modeling of particulate materials, discrete element method (DEM) is commonly used. It perceives every particle like a single body. A railway ballast loading by trains is a typical example of a particulate discrete material. By a passing train, static
Dubina, Radek
core   +1 more source

Ballast stressing on a railway track and the behaviour of limestone ballast

, 2008
In this paper the results of the tests performed on the ballast used in the Greek network are presented. The tests were conducted in laboratories in France and Greece, and led to a change in the Greek technical specifications.
Giannakos, K., Loizos, A, Giannakos, K, Loizos, A.   +3 more
core  

Applicability of synthetic fibre reinforced concrete for railway sleepers

, 2019
Currently, the railway industry is forced to implement innovative sleeper materials due to the premature failure of conventional sleepers and the associated cost incurred in their replacement.
Mirza, Olivia (R13978), Kirkland, Brendan (R18590), Kahagala Hewage, Dayani (S34553), Clarke, Todd, Camille, Christophe (R20962), Mashiri, Fidelis R. (R12397)   +5 more
core  

Determination of Substructure and Sub-ballast Layer Thickness of High-Speed Railway

Journal of Materials and Engineering Structures
The thickness of trackbed layers plays a crucial role in distributing train loads to ensure that stresses on the sub-ballast and substructure remain within acceptable limits. Vietnam is currently studying the construction of a high-speed railway (HSR) on
Tran Anh DUNG, Pham Van KY, Le Hai HA
doaj  

A rapid detection method for coal dust thickness in heavy-haul railway ballast based on time and frequency domain response characteristics from GPR signal. [PDF]

Sci Rep
Yang W, Gao J, Xu Z.
europepmc   +1 more source