Naslov
The impact of ballast thickness on vertical track stability

Autori
Lakušić, Stjepan ; Medvidović, Tino ; Kožar, Ivica

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
26th DANUBI ADRIA Symposium on Advances in Experimental Mechanics / Eichlseder, Wilfried - Leoben : Austrian Society of Experimental Strain Analysis (ASESA), 2009, 129-130

ISBN
978-3-902544-02-5

Skup
26th DANUBI ADRIA Symposium on Advances in Experimental Mechanics

Mjesto i datum
Leoben, Austrija, 23.09.2009. - 26.09.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
concrete sleeper; ballast; vertical track stability; vibrations

Sažetak
The main elements of the upper structure of the classical rail track constructions are the rails, sleepers and the track screen (the ballast). The connection of the rails and the sleepers is achieved by an appropriate method of fastening. If the rail track ballast is observed, its main purpose is to elastically and equally transfer the loads caused by the rail vehicles to the plane of the lower structure, to secure the direction and height of the rail track and to dampen the vibrations in the rail track. For the ballast to fulfill the said requirements, it must have sufficient dimensions (width and thickness) and must be constructed of a good quality material. This paper considers impact of the thickness of the ballast on the vertical stability of the rail track. The measurements of track displacement were performed on the Croatian Railways network (location: Skrljevo - Meja - Pecine). This section is in a cut with longitudinal slope of 22 ‰ and thickness of the ballast is 15 to 20 cm. During the year 2005 the wooden sleepers were replaced with the concrete sleepers. After two years from the replacement, the new sleepers sunk due to further crushing of the ballast.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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