This paper reports a feasibility study in the use of measured modal parameters of in-situ concrete sleepers to detect possible damage of the underlying railway ballast. There are many methods developed for monitoring and damage detection of the rail track. However, the detection of ballast damage still heavily relies on visual inspection and destructive core test. In this feasibility study, a typical plain ballasted track with concrete sleeper is considered. In the proposed method, ballast under sleeper is modelled as an elastic foundation. Ballast damage is defined as ballast degradation and ballast cementation with the accumulation of fines. When the ballast is damaged, the stiffness provided in supporting the sleeper will reduce, and the vibration characteristic of the in-situ sleeper will be altered. This paper studies the possibility to detect the damage status of ballast under a sleeper by monitoring the vibration of the corresponding sleeper through simple impact hammer test. This paper not only presented the theoretical development but also the numerical verifications.


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    Titel :

    A Feasibility Study on the Use of Simple Vibration Test in the Detection of Railway Ballast Damage


    Weitere Titelangaben:

    Lect. Notes Electrical Eng.


    Beteiligte:
    Ni, Yi-Qing (Herausgeber:in) / Ye, Xiao-Wei (Herausgeber:in) / Lam, H. F. (Autor:in) / Wong, M. T. (Autor:in)


    Erscheinungsdatum :

    2012-01-01


    Format / Umfang :

    12 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    A Feasibility Study on the Use of Simple Vibration Test in the Detection of Railway Ballast Damage

    Lam, H.F. / Wong, M.T. | British Library Conference Proceedings | 2012


    Railway ballast requirements

    Stimson, F.J. | Engineering Index Backfile | 1926


    Drinage of Railway Ballast

    Selig, E. T. / Parsons, B. K. / Cole, B. E. | British Library Conference Proceedings



    Ballast tampers for railway ties

    Vaughan, George W. | Engineering Index Backfile | 1915