Ballast mats for the reduction of railway traffic vibrations. Numerical study

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Alves Costa, PA (Autor) FEUP; Calcada, R (Autor) FEUP; Silva Cardoso, AS (Autor) FEUP

Revista

Título: Soil Dynamics and Earthquake Engineering

Vol. 42

Páginas: 137-150

ISSN: 0267-7261

Editora: Elsevier

Indexação

ISI Proceedings

ISI Web of Knowledge - 109 Citações

Scopus - 133 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia do ambiente

Outras Informações

ID Authenticus: P-002-49A

DOI: 10.1016/j.soildyn.2012.06.014

Abstract (EN): This paper presents a numerical study developed in order to understand the dynamic behavior of ballasted tracks with mats including the train-track-ground interaction. In order to achieve that goal, a case study is modeled by a 2.5D FEM-BEM formulation. A comprehensive approach is presented and the effects of the mat stiffness and location in depth are discussed. The comparison between isolated and non-isolated scenarios allowed concluding that the ballast mat has a dual effect, focusing on the train-track dynamic behavior and on the reduction of high-frequency vibrations that are transmitted to the ground. Furthermore, it was found that global efficiency can be reached by placing the mat beneath the subballast instead of below the ballast layer.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14