Railroad corridors contain a large number of insulated rail joints (IRJs) that act as elements (critical to safety) in the circuitries of signaling and broken rail identification systems. IRJs are regarded as sources of excitation for the passage of loaded wheels that lead to high-impact forces. These forces in turn cause dips, cross levels, and twists to the railroad geometry in close proximity to the sections that contain IRJs, in addition to local damage to the railhead of the IRJs. Therefore, a systematic monitoring of IRJs in railroads is prudent to mitigate the potential risk of their sudden failure (e.g., broken tie plates) as a consequence of rail traffic. This paper presents a simple method of periodic recording of images using time-lapse photography and total station surveying measurements to understand the ongoing deterioration of IRJs and their surroundings. Over a 500-day period, data were collected to examine the trends in narrowing of the joint gap that is attributable to plastic deformation of the railhead edges. Data was also collected with respect to the dips, cross levels, and twists that were imparted to the railroad geometry, which is attributable to the settlement of ties (sleepers) around the IRJs. The results reflect that the average progressive settlement beneath the IRJs is larger than that under the continuously welded rail, which leads to excessive deviation of the railroad profile, cross levels, and twists.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Service Condition of Railroad Corridors around the Insulated Rail Joints


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    19.01.2013


    Format / Umfang :

    82013-01-01 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Service Condition of Railroad Corridors around the Insulated Rail Joints

    Zong, N. / Askarinejad, H. / Heva, T.B. et al. | British Library Online Contents | 2013


    Railroad Embankment Stabilization Demonstration for High-Speed Rail Corridors

    Sluz, Andrew / Sussmann, Theodore R. / Samavedam, Gopal | ASCE | 2003


    Passenger trains in freight railroad corridors

    Bing, A. J. / Little, A. D. / Harrison, J. A. et al. | British Library Conference Proceedings | 1994


    Welding rail joints on iron railroad bridges

    Stern, J. | Engineering Index Backfile | 1924