Movement of high-speed trains is modeled by moving load technology. Radiation damping and elastic recovery of infinite foundations are simulated by a three-dimensional, viscoelastic, static-dynamic, unified, artificial boundary. By considering the influence of the static stress state after embankment and rail system construction on subsequent dynamic analysis, material nonlinearity and dynamic interaction between reinforced concrete roadbeds and the upper layer of formation, large-scale, three-dimensional, dynamic, parallel computation of a rail embankment foundation system on a high-speed railway was performed. Results - including vibration displacement, vibration velocity, vibration acceleration, and dynamic stresses - were obtained. On these bases, an attenuation law of vertical dynamic stress with depth was analyzed and the influence depth of dynamic load was determined. It was found that the principal stress axes in the three planes rotated continuously during the period of load moving, and the rotation in YZ plane was dominant. The rotation of the principal stress axes was compared with that of a soil element induced by the moving load applied directly to the foundation surface.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Dynamic Responses of Rail-Embankment-Foundation on High-Speed Railways under Moving Loads


    Contributors:

    Conference:

    10th Asia Pacific Transportation Development Conference ; 2014 ; Beijing, China



    Publication date :

    2014-05-05




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Dynamic Response of High-Speed Rail Roadbed under Harmonic Moving Loads

    Xue, Fu-Chun / Yan, Liping / Zhang, Jian-Min et al. | ASCE | 2012



    Dynamic aspects of rail tracks for high-speed railways

    Adam, Dietmar | Online Contents | 2010


    Wheel–rail dynamic interaction due to rail weld irregularity in high-speed railways

    Gao, Jianmin / Zhai, Wanming / Guo, Yi | SAGE Publications | 2018


    Rail Irregularity Power Spectrum of High-Speed Railways

    Wang, Xiao Qin ;Zhang, Xuan | Trans Tech Publications | 2013