The performance of railway ballast under repeated loading greatly influences the overall stability and durability of the track. It is mainly quantified in terms of induced plastic strain, resilient modulus, and ballast breakage index. Past laboratory and field investigations indicated that external loading conditions and intrinsic material properties of ballast such as coefficient of uniformity and mean particle size affect the deformations of ballast. Threshold ranges for geotechnical design parameters such as confining pressure, frequency, and ballast gradation are available in literature to optimize the service life of the ballast under cyclic loads mimicking actual field conditions. However, the proposed optimum range cannot be widely adopted for all the scenarios because every optimization model has constraints. Moreover, majority of the proposed empirical relationships developed to quantify the extent of ballast degradation were mostly derived from single-objective optimization studies. Therefore, this paper presents a comprehensive review of the existing single-objective models for predicting different ballast performance metrics. The relative advantages and shortcomings are discussed with their constraints for application to field problems.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    An Overview of Single-Objective Optimization Models for Assessing the Performance of Railway Ballast Under Cyclic Loading


    Additional title:

    Lecture Notes in Civil Engineering



    Conference:

    International Conference on Transportation Geotechnics ; 2024 ; Sydney, NSW, Australia November 20, 2024 - November 22, 2024



    Publication date :

    2024-10-18


    Size :

    8 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Study Behavior of Railway Ballast under Cyclic Loading

    Zhou, Tao Yong ;Hu, Bin ;Hua, Bin | Trans Tech Publications | 2014


    An Experimental Study on Railway Ballast Degradation Under Cyclic Loading

    Talebiahooie, Elahe / Thiery, Florian / Mattsson, Hans et al. | Springer Verlag | 2022


    Study on the Cyclic Loading Effects to the Railway Ballast

    Wang, Xue Jun ;Hua, Bin ;Chi, Yi Lin | Trans Tech Publications | 2013


    Mechanical behavior of ballast under monotonic and cyclic loading

    Karraz, K. / Bonnet, G. / Dupla, J.C. et al. | British Library Conference Proceedings | 2007