Pregled bibliografske jedinice broj: 474555
The impact of ballast depth on vertical track stability
The impact of ballast depth on vertical track stability // Road and Rail Infrastructure / Lakušić, Stjepan (ur.).
Zagreb: Građevinski fakultet Sveučilišta u Zagrebu, 2010. str. 743-749 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 474555 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
The impact of ballast depth 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
Road and Rail Infrastructure
/ Lakušić, Stjepan - Zagreb : Građevinski fakultet Sveučilišta u Zagrebu, 2010, 743-749
ISBN
978-953-6272-37-2
Skup
First International Conference on Road and Rail Infrastructure (CETRA 2010)
Mjesto i datum
Opatija, Hrvatska, 17.05.2010. - 18.05.2010
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
ballast track; ballast crushing; track stability
Sažetak
The main elements of the superstructure of the classical rail track constructions are the rails, sleepers and the ballast bed. 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 fulfil the mentioned requirements, it must have sufficient dimensions (width and thickness) and must be made out of good quality material. This paper considers impact of the ballast thickness 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. Two years after the replacement, new sleepers sunk due to further crushing of the ballast. Due to subsequent crushing, the crushed stones lost their sharp edged form, which in turn led to reduction of mutual wedging of the granules, which finally led to settlement of the sleepers.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
POVEZANOST RADA
Projekti:
082-0000000-2185 - Buka i vibracije na tramvajskim i željezničkim kolosijecima (Lakušić, Stjepan, MZOS ) ( CroRIS)
114-0982562-1460 - Fleksibilne duge konstrukcije: nelinearno modeliranje s vizualizacijom (Kožar, Ivica, MZOS ) ( CroRIS)
Ustanove:
Građevinski fakultet, Zagreb
