Show simple item record

AdvisorHussein, Mohammed Farouk Mohammed
AuthorAlabbasi, Yahia Abdulnaser
Available date2019-07-30T11:12:26Z
Publication Date2019-06
URIhttp://hdl.handle.net/10576/11684
AbstractBallasted tracks have been widely used in many countries around the world. Ballast layer is the main element in ballasted track. After service, ballast aggregates degrade and deform. Periodical maintenance for ballast layer is required; which is a cost and time expensive activity. Researchers used numerical approaches to understand the behavior of railroad ballast that leads to efficient design and maintenance. The Discrete Element Method (DEM) has been used increasingly to understand the mechanical behavior of railroad ballast, more frequently through box test. Most researches in the literature simulate the train loading as a pure continuous sinusoid based on train speed and axle spacing; unlike the actual loading induced by trains. This study aims to show the influence of simulated train loadings on ballast mechanical behavior using DEM via box test. The study utilizes the theory of Beam on Elastic Foundation to simulate a more realistic train load. The results from the more realistic simulated train load are compared with those from a sinusoidal load. The compared results highlight the influence of the simulated train load on the mechanical behavior of railroad ballast.
SponsorAuthor: " I would like to acknowledge Qatar Rail for their sponsorship to this research under a project entitled “Framework for Research on Railway Engineering” with a grant reference number: QUEX-CENG-Rail 17/18. "
Languageen
SubjectBallast layer - ballasted track
railroad ballast - Discrete Element Method (DEM)
Beam - Elastic Foundation - train load
TitleDiscrete Element Modeling Of Railroad Ballast Under Simulated Train Loading
TypeMaster Thesis
DepartmentCivil Engineering
dc.accessType Open Access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record