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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 104
PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo
Paper 63
Development of Panels for Asphalt Track J.W. Lee1, S.H. Lee1, I.H. Baek2 and C.H. Seok2
1Korea Railway Research Institute, Korea
J.W. Lee, S.H. Lee, I.H. Baek, C.H. Seok, "Development of Panels for Asphalt Track", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 63, 2014. doi:10.4203/ccp.104.63
Keywords: concrete track, asphalt track, finite element analysis, shear key.
Summary
To overcome the increased maintenance arising from higher train speeds concrete
tracks have been in use for quite a long time in order to solve such issues as the lack
of manpower and securing stability. However, high construction costs and lack of
countermeasures for cracks and settlement are considered to be the weak points of
the concrete track. To remedy such shortcomings, the asphalt track has been
developed and is in use in Germany and other European countries. Also the Korean
type of asphalt track is under development. The sleeper which is a critical part of the
asphalt track system is currently under development and the structural examination
using finite element analysis has been conducted. As a result, three types of trial
sleepers has been manufactured by following the EN 13250-2/5 standard static and
dynamic bending strength test to evaluate the sleeper performance. Henceforth, the
optimized asphalt track system will be developed by conducting the actual size
performance test to analyse the behaviour characteristics of the asphalt track such as
track bed soil pressure, track settlements, longitudinal and transverse resistance.
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