Naslov
Experimental investigation of railway track with under sleeper pad

Autori
Lakušić, Stjepan ; Ahac, Maja ; Haladin, Ivo

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

Izvornik
10th Slovenian Road and Transportation Congress / Vilhar Matija - Ljubljana : DRC - Družba za raziskave v cestni in prometni stroki Slovenije, 2010, 386-393

Skup
10th Slovenian Road and Transportation Congress

Mjesto i datum
Portorož, Slovenija, 20.10.2010. - 22.10.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
railway track; under sleeper pad; track vibration;

Sažetak
The conventional railway superstructure consists of rails, elastic fastening systems and, in general, transverse concrete sleepers supported on ballast bed. Such tracks, in comparison with the structures on timber sleepers, have less contact elasticity between sleepers and ballast material. Ballast bed represents the weakest link in the entire track construction because of the crushed stone movements during dynamic loads. Their motion causes extensive abrasive wear on the contact areas of single stones and also breakings or even pulverization of some stones. The solution to this problem lies in the modification of the dynamic characteristics of vehicle-track system by installation of elastic elements that will ensure better load distribution in the track structure. Today, besides the usual resiliant rail pads and baseplate pads, there is an increased use of sub-ballast mats and especially under sleeper pads in the track structure. This paper presents experimental investigation of vibration intensity carried out on the track with and without under sleeper pads. The results showed that the vibrations on track with under sleeper pads decreased up to 30%, which is particularly important in areas sensitive to noise and vibration, at crossings, turnouts and railway tracks on bridges.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA