Abstract
This study investigates the influence of Uniaxial Compressive Strength (UCS) of ballast rock cores and the Bedding Modulus of Under Sleeper Pads (USP-BM) on railway track deterioration, investigating key factors such as settlement and aggregate fragmentation through Discrete Element Method (DEM) simulations. These simulations encompass three scenarios representing different types of ballast aggregates: without a pad, with a soft pad, and with a hard pad, with rock cores categorized by UCS values into soft (159 MPa), medium (210 MPa), and hard (285 MPa) classes. The model involves cyclic loading of a sleeper section embedded in ballast, subject to fluctuating vertical loads between 3 and 43 kN at a frequency of 3 Hz, with a total of 15 load cycles applied to emulate real-world conditions, and its accuracy is confirmed through experimental validation. The study concludes that a soft USP is most effective in mitigating ballast settlement and breakage, highlighting the pivotal role of UCS values of ballast rock cores in the management of track deterioration.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Science and Research Archive
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
