Efficiency of ballast mats for the reduction of vibrations induced by traffic: A parametric study

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

Autores

Costa, PA (Autor) Outra; Lopes, P (Autor) Outra; Rui Calçada (Autor) FEUP; Cardoso, AS (Autor) Outra

Revista

Título: Civil-Comp Proceedings

Vol. 98

Páginas: 1716-1735

ISSN: 1759-3433

Editora: Civil-Comp Press

Indexação

Scopus - 0 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

Outras Informações

ID Authenticus: P-00Q-SDN

DOI: 10.4203/ccp.98.121

Abstract (EN): This paper presents a numerical study developed in order to understand the dynamic behaviour of ballasted tracks with mats including the train-track-ground interaction. In order to achieve that goal, a case study is modelled 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 behaviour and on the reduction of high-frequency vibrations that are transmitted to the ground. Furthermore, it was found that better isolation efficiency can be reached by placing the mat beneath the subballast instead of below the ballast layer. ©Civil-Comp Press, 2012

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Notas: http://toc.proceedings.com/14998webtoc.pdf