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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

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

Revista

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

Vol. 31

Páginas: 120-131

ISSN: 0213-1315

Editora: Scipedia S.L

Indexação

ISI Proceedings

ISI Web of Knowledge - 1 Citação

Scopus - 4 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Tecnológicas > Engenharia

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12