Track-ground vibrations induced by railway traffic: In-situ measurements and validation of a 2.5D FEM-BEM model

• Type: Article in International Scientific Journal
• Date: 2012

Authors

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

Journal

Title: Soil Dynamics and Earthquake Engineering

Vol. 32 No. 1

Pages: 111-128

ISSN: 0267-7261

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 89 Citations

Scopus - 168 Citations

Scientific classification

FOS: Engineering and technology > Environmental engineering

Other information

Authenticus ID: P-002-HJ0

DOI: 10.1016/j.soildyn.2011.09.002

Abstract (EN): The first part of the paper includes a brief presentation of a 2.5 D FEM-BEM model, developed by the authors, which is able to lead with problems of vibrations induced by traffic including the train-track dynamic interaction. Then a global description of a test site developed on a stretch of the Portuguese railway network is presented. In that test site, several experiments were performed in order to obtain an appropriate mechanical characterization of the main elements involved in the process of generation and propagation of waves induced by traffic. After the characterization of the ground and the track, the vibrations induced by railway traffic were measured both on the railway track and on the free-field. Finally, some predicted results, obtained by the proposed numerical model, are compared with the measurements. The study performed reports the validation of the model proposed by the authors and, consequently, provides a deep understanding of the influence of several aspects which determine the solution to the problem.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 18