University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Bernhard Antony
(2015):
Messung und Beurteilung von Erschütterungen der dynamischen Gleisstabilisation.
Master / Diploma Thesis - Institut für Verkehrswesen (IVe),
BOKU-Universität für Bodenkultur,
pp 115.
UB BOKU
obvsg
- Abstract:
- The desired state of a rail network is monitored on a regular basis to ensure a high level of geometrical track quality. If the current state of the track set differs from the desired state, maintenance work has to be done by the infrastructure operator to improve the quality. To bring the track back to the correct geometrical position, the track has to be leveled, lifted, lined and tamped. After this process, dynamic track stabilisation is applied to produce a controlled settlement of the track. Thereby the ballast stones are re-arranged by horizontal vibrations for a denser structure. The vibrations produced by the dynamic track stabilisation are not limited to the ballast stones but also spread to the surrounding area. Therefore, people living close to the railway are worried about damage on their houses caused by these vibrations. This master thesis analyses the vibration effects of the dynamic track stabilisation and focuses on the potential consequences for buildings near the rail system. In addition, it investigates whether or not the modifications of the imbalance, frequency or load have an impact on the height of the vibration amplitudes. Therefore, the vibration velocities produced by the dynamic track stabilisation have been measured in two different locations. The data shows that the vibration velocity decreases with growing distance to the dynamic track stabilisation machine, and that with a minimum of security distance no damage on buildings is to be expected. In addition, the data shows that the modification of imbalance and load has an impact on the height of the vibration amplitudes.
- Beurteilende(r): Berger Wolfgang Josef
- 1.Mitwirkender: