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The Influence of Seasonal Effects on Railway Vertical Track Modulus
InfrastructuresAdequate vertical track support is essential for safe and efficient railway operations. Insufficient support leads to distorted track geometry, increased dynamic loads, component stress, poor ride quality, rolling stock damage, and derailment risks ...
Antonio Merheb +4 more
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Track Modulus Assessment of Engineered Interspersed Concrete Sleepers in Ballasted Track [PDF]
Applied Sciences, 2020 Ballasted railway track is typically constructed using sleepers that are manufactured from a common material type within a given length of track. Timber and concrete are the two most common sleeper materials used internationally. Evidence from historical
Arthur de Oliveira Lima +3 more
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A Priori Determination of Track Modulus Based on Elastic Solutions [PDF]
KSCE Journal of Civil Engineering, 2020 The standard approach for modeling railway tracks idealizes the rails as two infinite beams, each supported over a separate continuous spring foundation. The foundation is characterized by a track modulus that embodies all components and materials underlying each rail as well as any cross-rail interaction.
Tulika Bose, Eyal Levenberg
exaly +4 more sources
Determination of the modulus of elasticity of railway track with BF70 sleepers [PDF]
E3S Web of ConferencesThe purpose of this work is to determine the modulus of elasticity of the under-rail base, which are the main elastic characteristics that determine the stresses in the elements of the track structure under the dynamic load from the train. Traditionally,
Begmatov Nodir, Ergashev Ulugbek
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Continuous Evaluation of Track Modulus from a Moving Railcar Using ANN-Based Techniques [PDF]
Vibration, 2020 Track foundation stiffness (also referred as the track modulus) is one of the main parameters that affect the track performance, and thus, quantifying its magnitudes and variations along the track is widely accepted as a method for evaluating the track condition.
Ngoan T, Mustafa Gul
exaly +3 more sources
Field investigation on variation of rail support modulus in ballasted railway tracks [PDF]
Latin American Journal of Solids and Structures, 2012 Rail support modulus is an important factor in safety of railway track. This parameter is defined as support force imposing on rail length unit per rail unit displacement in vertical direction.
Jabbar Ali Zakeri, Rauf Abbasi
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A General Finite Beam on Tensionless Foundation Model for Rail Track Characterization and Evaluation [PDF]
SensorsRail infrastructure plays an important role in freight and passenger mobility, and the assessment of rail track structure depends critically on understanding how the rail interacts with the supporting foundation.
Hamoud H. Alshallaqi, Brett A. Story
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Civil and Environmental Engineering, 2023 The railway is one of the cheapest methods to transport people and heavy goods. It is safer than highways. In Iraq, many railways connect the south country with the middle and north, which are old, damaged, and need to continued maintenance.
Alani Zaman +2 more
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Estimation of track modulus over long distances using artificial neural networks
Procedia Engineering, 2017 Abstract Evaluating the railway track structure and identifying the problematic locations with the urgent need of repair along the thousands of miles of tracks have always been a challenge to the railroad industry. Track foundation modulus (also referred to as the track modulus) is one of the main parameters that affect the track performance, and ...
Ngoan T, Mustafa Gul
exaly +2 more sources
Science Progress, 2022 The structural adequacy challenges of railroad track structures have received considerable attention globally. Track defects and failures due to weak strength and buckling effect account for one-third of all railroad accidents. The current paper provides
Xia Hua +3 more
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