Estudo de vibrações na linha ferroviária: Caso estudo: Alargamento da plataforma ferroviária da Gare Oriente

Manuel João Pêgo

Key information

Authors:

Manuel João Pêgo (Manuel João Pêgo Monteiro)

Supervisors:

João Manuel Marcelino Mateus da Silva (João Manuel Marcelino Mateus da Silva); Jaime Alberto dos Santos (Jaime Alberto dos Santos)

Published in

12/03/2009

Abstract

This work describes a set of research studies that were made with the intent of studying vibrations created by the circulation of trains. In the last decades, the development of high-speed trains emphasized the need to closely monitor this phenomenon. The purpose of this study is to provide a state-of-the-art about data acquisition process. It also presents a new experience, including important concepts in certain areas such as analysis of signals, seismic geotechnical engineering and track engineering. A field study with the purpose of measuring vibrations induced by train circulation was carried out in July of 2009 and took place at Gare do Oriente (train station located in Lisbon). The next step was to develop a whole set of analysis tools in Matlab, meticulously incorporating digital filters for signal processing. Nowadays, this subject is considered to be of special interest for research, since measuring vibrations from train circulation and its subsequent analysis can prove to be useful tools for both rail track design and situations where mitigation measures need to be evaluated.