Experimental Study on Condition Evaluation for Railway Ballasted Track 


Vol. 33,  No. 2, pp. 152-157, Apr.  2018
10.14346/JKOSOS.2018.33.2.152


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  Abstract

The degradation and damage of the components for ballasted track could be caused a serious problem for railway safety. Therefore, the integrity evaluation of ballasted track condition is important to ensure and predict that the track safety and track maintenance. Various track components such as rail pad, ballast, sleeper, and rail that are widely used in Republic of Korea and represent a range of physical properties have been selected for this research. In this study, the experimental modal analysis was performed by the non-destructive testing. Modal test results were obtained from the field test and used to assess the condition of the track components. From the field test, the system of ballasted track was found to be simplified as a two-degree-of-freedom(2DOF) dynamic system. The condition of track component was found to directly affect the dynamic response of ballasted tracks. As the results, the dynamic properties of the track component was depend on the track condition and was distributed more roughly and over a wider range than its initial design values. Further, the methodology presented in this study is possible to determine experimentally the fundamental track parameters which are required in the numerical analysis, and also are useful for the safety assessment of track condition.

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  Cite this article

[IEEE Style]

최정열 and 방은영, "Experimental Study on Condition Evaluation for Railway Ballasted Track," Journal of the Korean Society of Safety, vol. 33, no. 2, pp. 152-157, 2018. DOI: 10.14346/JKOSOS.2018.33.2.152.

[ACM Style]

최정열 and 방은영. 2018. Experimental Study on Condition Evaluation for Railway Ballasted Track. Journal of the Korean Society of Safety, 33, 2, (2018), 152-157. DOI: 10.14346/JKOSOS.2018.33.2.152.

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