Tamping operation is an important part of railway maintenance work. The porosity of railway ballast is an important maintenance quality evaluation index during tamping process. In this paper, based on the discrete characteristics of railway ballast, the discrete element analysis model of railway ballast is created using the discrete element method, numerical simulations are performed to study the evolution of porosity of railway ballast under sleeper during tamping process. This paper focuses on the influence of vibration frequency of tamping tines during tamping process; an optimal vibration frequency is obtained from the simulation and compared with the actual vibration frequency recommended by China Railway Large Maintenance Machinery Co., Ltd. Kunming, it is found that the two vibration frequency is consistent. This result verifies that the discrete element method is an effective method to study the evolution of porosity of railway ballast during tamping process.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Numerical Study Porosity of Railway Ballast during Tamping Process



    Published in:

    Advanced Materials Research ; 919-921 ; 1124-1127


    Publication date :

    2014-04-17


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Experimental and Numerical Study of Railway Ballast Compactness during Tamping Process

    Zhou, Tao Yong ;Hu, Bin ;Yan, Bo | Trans Tech Publications | 2013


    Discrete Element Method Simulation of Mesomechanics of Railway Ballast during Tamping Process

    Zhou, Tao Yong ;Hu, Bin ;Yan, Bo | Trans Tech Publications | 2013



    Optimizing Policies of Railway Ballast Tamping and Renewal

    Zhao, J. / Chan, A. H. C. / Stirling, A. B. et al. | British Library Conference Proceedings | 2006


    Optimizing Policies of Railway Ballast Tamping and Renewal

    Zhao, Jianmin / Chan, A. H. C. / Stirling, A. B. et al. | Transportation Research Record | 2006