Short soil-binder columns in railway track reinforcement: three-dimensional numerical studies considering the train-track interaction

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Francisco, A (Autor) Outra; Paixao, A (Autor) FEUP; Varandas, JN (Autor) Outra; Fortunato, E (Autor) Outra

Revista

Título: Computers and Geotechnics

Vol. 98

Páginas: 8-16

ISSN: 0266-352X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00N-TWV

DOI: 10.1016/j.compgeo.2018.02.001

Abstract (EN): The authors present a numerical study on railway track subgrade reinforcement using short soil-binder columns through injection, below the ballast layer. A 3D FEM program developed in MATLAB that considers the dynamic train-track interaction and the non-linear elastic behaviour of the ballast is used to study the response of the train-track-substructure system and assess stresses in the subgrade. Results suggest that reinforcements have limited impact on the train-track interaction and reduce deviatoric stresses between columns, at the top of the foundation. This method may be particularly relevant in the rehabilitation of old single railway tracks.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9