Análise numérica da alteração do estado de tensão geomecânico induzida pelo tráfego ferroviário

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Aires Colaço (Author) FEUP; Pedro Alves Costa (Author) FEUP; Patrícia Lopes (Author) FEUP

Journal

Title: Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria

Vol. 31

Pages: 120-131

ISSN: 0213-1315

Publisher: Scipedia S.L

Indexing

ISI Proceedings

ISI Web of Knowledge - 1 Citation

Scopus - 4 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences > Engineering

Other information

Authenticus ID: P-00H-DFE

DOI: 10.1016/j.rimni.2014.02.001

Abstract (EN): In this paper, a numerical study of the geomechanical stress state evolution induced by the railway traffic is presented. The numerical model is based on a 2.5D formulation with the ability to account for the dynamic train-track interaction. For the case study, the stress state evolution is systematized in the form of stress paths. The results obtained allow to recognize the great influence of the train speed and the presence of irregularities in the track for the behavior of the railway track. Based on the knowledge acquired during the implementation of previous parametric studies, the adequacy of the hollow cylinder torsional test to simulate the complex stress paths induced in the ground of the traffic railway is evaluated. The results obtained allow to put in perspective the simulation of these loads in laboratory, with the aim of studying the damage accumulation in the specimens.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12