Development of Panels for Asphalt Track

초록

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.