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http://dx.doi.org/10.7782/JKSR.2016.19.4.498

Experimental Study on Characteristics of Track Settlement Depending on Components of Ballast Track  

Kim, Man-Cheol (Advanced Infrastructure Research Team, Korea Railroad Research Institute)
Bae, Young-Hoon (Advanced Infrastructure Research Team, Korea Railroad Research Institute)
Lee, Si-Yong (Korea Development Corporation)
Park, Yong-Gul (Graduate School of Railway, Seoul National University of Science & Technology)
Publication Information
Journal of the Korean Society for Railway / v.19, no.4, 2016 , pp. 498-505 More about this Journal
Abstract
As a basic study to develop maintenance-effective optimal ballast track in preparation for upgrading a conventional line to a high speed railway, a full-scale test that combined the components of ballast track was conducted and the characteristic of track settlement was analyzed. As a result of the full-scale test, reduction in maintenance via an increase of the elasticity of only the pad was insignificant; however, the effect increased significantly with increasing of the weight of the sleeper or with increasing of the weight of the sleeper and the thickness of the ballast together with use of a pad with high resiliency. An optimal type of ballast track, in line with upgrading the speed of a conventional line, shall be developed through cost efficiency analysis considering the maintenance cost depending on the track settlement as well as the initial construction cost.
Keywords
Conventional lines; Ballasted track; Speed up; Characteristics of track settlement;
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