Railway retaining wall designs tend to disregard vehicle-induced trackbed deformation control, despite its potential impact on infrastructure serviceability. To fill this gap, this study seeks to develop an improved method to assess the performance of railway gravity retaining walls, specifically focusing on managing slab trackbed deformation. Utilizing a validated 3D numerical model, the research examines the impact of five parameters – wall width, location, inclination, embankment height, and ground-bearing capacity – on trackbed surface displacement (ω) arising from train loading. The multivariate adaptive regression splines (MARS) approach is applied to establish the mathematical relationship between these factors and an assessment indicator for evaluating track foundation serviceability. This indicator is the trackbed surface displacement index (R ω ), signifying the ratio of the maximum allowable to the practical ω value. Results highlight the necessity for comprehensive retaining wall design to ensure R ω ≥1.0, particularly when the wall is near the track, steeply inclined, or supporting a tall embankment.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Serviceability of railway slab track foundations with retaining walls under train loading


    Weitere Titelangaben:

    P. LYU ET AL.
    INTERNATIONAL JOURNAL OF RAIL TRANSPORTATION


    Beteiligte:
    Lyu, Pengju (Autor:in) / Luo, Qiang (Autor:in) / Wang, Tengfei (Autor:in) / Connolly, David P. (Autor:in) / Ye, Qingzhi (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    02.01.2025


    Format / Umfang :

    26 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    The Role of Retaining Walls in Trackbed Deflection—A Numerical Analysis of Railway Slab Tracks

    Lyu, Pengju / Luo, Qiang / Wang, Tengfei et al. | Springer Verlag | 2024


    Railway track construction and train operation

    Fairless, T. | Engineering Index Backfile | 1943


    Geosynthetic-reinforced retaining walls for bullet train yard in Nagoya

    Tateyama, M. / Murata, O. / Watanabe, K. et al. | British Library Conference Proceedings | 1994


    Transporter For Track Slab For Rail Of Train

    PARK JEUNG GEUN / KIM WON JOONG | Europäisches Patentamt | 2016

    Freier Zugriff