Experimental validation of a 3D FEM numerical model for railway vibrations

• Type: Article in International Conference Proceedings Book
• Date: 2018

Authors

Pedro Alves Costa (Author) FEUP; Jesus Fernandéz Ruiz (Author) Other

Conference proceedings International

Title: 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

Pages: 1560-1576

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

Porto, FEUP, June 2018

Indexing

ISI Web of Science

Scopus

Other information

Abstract (EN): In this paper a three dimensional numerical model formulated in time/space domain is applied for railway vibrations. The model is developed in code PLAXIS which is used to simulate the wave propagation in the ground whilst the train loads are calculated with a 2D train-track interaction model. The main objective is to show that commercial programs such as PLAXIS are reliable tools to model railway vibrations. Furthermore, since the wave propagation model is formulated in the time domain and PLAXIS software is able to model excess pore pressure and nonlinear soil behaviour, it could also be a useful tool to consider these two effects, which may be relevant in some cases. A real case located in Portugal is presented, being used for the experimental validation. The numerical results show an acceptable agreement with real measurements. Therefore, the proposed numerical approach can be used as a reliable prediction tool based on PLAXIS software.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8