Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Geomechanics and Engineering Volume 11, Number 6, December 2016 , pages 757-769 DOI: https://doi.org/10.12989/gae.2016.11.6.757 |
|
|
|
A comparison between the dynamic and static stiffness of ballasted track: A field study |
||
Seyed-Ali Mosayebi, Jabbar-Ali Zakeri and Morteza Esmaeili
|
||
| Abstract | ||
| Rail support modulus is an important parameter for analysis and design of ballasted railway tracks. One of the challenges in track stiffness assessment is its dynamic nature under the moving trains which differs it from the case of standing trains. So the present study is allocated to establish a relation between the dynamic and static stiffness of ballasted tracks via field measurements. In this regard, two different sites of ballasted tracks with wooden and concrete sleepers were selected and the static and dynamic stiffness were measured based on Talbot – Wasiutynski method. In this matter, the selected tracks were loaded by two heavy and light car bodies for standing and moving conditions and consequently the deflection basins were evaluated in both sites. Knowing the deflection basins respect to light and heavy loading conditions, both of static and dynamic stiffness values were extracted. Finally two definite relations were obtained for ballasted tracks with wooded and concrete sleepers. | ||
| Key Words | ||
| ballasted railway track; field investigation; rail support modulus; concrete and wooden sleeper; light and heavy car bodies | ||
| Address | ||
| School of Railway Engineering, Iran University of Science and Technology, Tehran, Iran. | ||