نتایج جستجو برای: ballasted railway track

تعداد نتایج: 76742  

2008
H. S. Lee Y. B. Kim S. Y. Jang

When a train is traveling along the transition such as slab and ballasted track, dynamic behaviors of rail system and train are abruptly changed. In R&D project, the newly-developed precast slab track system and track transition between slab and ballasted track was planned to construct in 2006 on the newly-built Jeolla-line. Maintenance demand, settlement and component degradation were predicte...

The roles of the several parameters that influences railway track deterioration most, are examined in this research with a view to make railway track maintenance more effective and cost efficient. The results presented are based on a comprehensive study of railway track degradation on super structure, sub-structure and geometrical aspects. The changes in TQI (Track Quality Index), the track set...

Journal: :CivilEng 2022

In the UK, High Speed Rail 2, (London to ‘North’) is surrounded by a number of questions regarding construction technologies which can minimise impact route. The rail industry in UK has vast experience based with ballasted track, but this not necessarily most appropriate choice for new high speed when crossing problematic soils. This paper aims investigate use different track types (ballasted a...

Journal: :Applied sciences 2022

The ballast used in ballasted railway tracks transmits load from the rails and ties to subgrade during train travel, directly affects overall track support performance elastic behavior of track. Due material limitations ballast, it is difficult quantitatively manage its performance, status, shape maintenance, use requires continuous maintenance management work. In this study on a proposed mater...

Journal: :Transportation infrastructure geotechnology 2022

Abstract The faster and heavier trains in modern railway traffic are getting popularity the public transportation authorities of many countries. Such cause higher stresses excessive deformations ballasted track substructure under train dynamic loadings, which raises risk damage derailment. It is thus essential to investigate impact different influencing factors on response track–ground systems....

Journal: :Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 2015

Journal: :Soil Dynamics and Earthquake Engineering 2022

Railway track transition zones are areas where there is a sudden change in the track-ground structure. They include changes between ballasted and slab track, bridge approaches, tunnel entry/exits. often location of rapid deterioration, therefore this paper investigates use auxiliary rails soil improvement to minimise train-track-ground dynamic effects. To do so, 3D finite element model develope...

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