Study of ballast layer stiffness in railway tracks

Građevinar

article

Jabbar-Ali Zakeri¹  Seyed Ali Mosayebi² 

[1] The Center of Excellence in Railway Transportation Iran University of Science and Technology Teheran;Iran University of Science and Technology Teheran

关键词: field and laboratory tests;    contamination;    fine particles;    ballast layer stiffness;    pyramid model;   

DOI  :  10.14256/JCE.1232.2015

学科分类：社会科学、人文和艺术（综合）

来源: Hrvatsko Drustvo Gradevinskih Inzenjera

【 摘 要 】

In this paper, ballast layer stiffness in railway tracks is investigated. Test results show that the percentage of ballast contamination changes considerably across the ballast layer depth. For this reason, the ballast was divided during modelling into three layers and the stiffness of each layer was derived based on the pyramid model developed for that purpose. The results show that the stiffness exhibited by the bottom ballast layer exceeds by up to 20 % that of the top and middle layers.

【 授权许可】

CC BY