Geotechnical challenges in very high speed railway tracks. The numerical modelling of critical speed issues

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2018

Autores

Pedro Alves Costa (Autor) FEUP; Aires Colaço (Autor) Outra

Ata de Conferência Internacional

Título: Numerical Methods in Geotechnical Engineering IX: Proceedings of the 9th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE 2018), June 25-27, 2018, Porto, Portugal

Páginas: 1605-1612

9th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE 2018)

Porto, FEUP, June 2018

Indexação

ISI Web of Science

Scopus

Outras Informações

Abstract (EN): Recent railway tracks are being designed for traffic speed larger than 350 km/h. This amazing increase of the traffic speed leads to new geotechnical challenges, since the train speed can achieve values close to the wave propagation velocity in the ground, giving rise to the so called “critical speed problem”. The present paper approaches this problem focusing on geotechnical engineering. The departing point is the theoretical formulation of the critical speed problem of a moving load on the surface of an elastic solid. From the usage of 2.5D detailed models it was possible to understand the influence of the embankment and of slab track properties on the critical speed. © 2018 Taylor & Francis Group, London, UK.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8