Stress path evolution in the ground due to railway traffic.Comparisons between ballasted and ballastless track systems

• Type: Article in International Conference Proceedings Book
• Date: 2018

Authors

Pedro Alves Costa (Author) FEUP; Rui Calçada (Author) FEUP; Ana Ramos (Author) Other; António Gomes Correia (Author) Other

Conference proceedings International

Title: Numerical Methods in Geotechnical Engineering IX: Proceedings of the 9th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE 2018), June 25-27, 2018, Porto, Portugal

Pages: 1597-1604

9th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE 2018)

Porto, FEUP, June 2018

Indexing

ISI Web of Science

Scopus

Other information

Abstract (EN): In this paper, a numerical study of the stress state evolution in the ground induced by the railway traffic is presented. The numerical models were developed considering two types of railway tracks: ballasted and ballastless tracks. Both structures were modelled in order to evaluate the differences obtained in terms of stresses under two different loading conditions: conventional passenger train (Alfa Pendular) and a freight train. The influence of the train speed and track irregularities were also studied. The numerical models were developed considering the 2.5D formulation based on FEM-PML approach. These results are a contribution to a better understanding the dynamic response of different track systems under distinct traffic scenarios and also to evaluate the comparative performance of the two systems.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8