DBPapers
DOI: 10.5593/SGEM2015/B12/S2.062

MODEL ANALYSIS OF THE DYNAMIC EFFECTS OF RAILWAY TRAFFIC, DEPENDING ON THE SELECTED DETERMINING FACTORS

E. Hrubesova, M. Stolarik,B. Lunackova, M. Pinka, T. Petrik
Friday 7 August 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-32-2 / ISSN 1314-2704, June 18-24, 2015, Book1 Vol. 2, 465-470 pp

ABSTRACT
The paper is focused on the analysis of dynamic effects of rail transport on the response of the railway base and embankment assuming the underground damping barriers. The dynamic analysis is based on numerical models using MIDAS GTS software. The paper presents the damping impact of two types of underground barriers (walls), which are located in different distance from dynamic load source and in material of barrier (concrete or gravel material). Contribution will present both the results of the maximum oscillation velocities and attenuation curves corresponding to the soil for assuming factors. In the end conclusions, focused on the qualitative and quantitative aspects of barriers impacts, have been formulated. The model analysis documented the positive effect of applied barrier resulted into the decrease of oscillation velocity. The higher effect was observed assuming concrete barrier – the maximum oscillation velocity is reduced by 20 % comparing with the situation without barrier.

Keywords: dynamic load, embankment, barriers, numerical model, damping