Experimental analysis of track-ground vibrations on a stretch of the Portuguese railway network
Institution:
1. Construct, University of Porto, Faculty of Engineering, Porto, Portugal;2. School of Engineering of the Polytechnic Institute of Porto, Porto, Portugal;1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China;3. Department of Civil Engineering, The University of Hong Kong, Hong Kong, China;1. Transportation Department, National Laboratory for Civil Engineering (LNEC), Av. do Brasil 101, 1700-066 Lisboa, Portugal;2. Department of Civil Engineering, Faculty of Engineering, University of Porto (FEUP), R. Dr. Roberto Frias, 4200-465 Porto, Portugal;1. Department of Civil and Water Engineering, Université Laval, Québec, Canada;2. Department of Civil Engineering, Yasouj University, Yasouj, Iran;3. Department of Civil Engineering, Shiraz University, Shiraz, Iran;1. Acoustical and Mechanical Engineering Laboratory (LEAM), Universitat Politècnica de Catalunya (UPC), c/ Colom, 11, 08222 Terrassa, Barcelona, Spain;2. Department of Engineering, University of Cambridge, United Kingdom;3. Departamento de Ingeniería de Sistemas, Automática e Informática Industrial (ESAII), Universitat Politècnica de Catalunya (UPC), c/ Colom, 11, 08222 Terrassa, Barcelona, Spain;4. CONSTRUCT, Faculty of Engineering (FEUP), University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal;5. Serra Húnter Fellow, Universitat Politècnica de Catalunya (UPC), Spain
Abstract:
This paper presents a comprehensive experimental campaign developed on a stretch of the Portuguese railway network. The experimental work includes three fundamental and complementary components: the characterization of the ground, the characterization of the track and the measurement of the vibrations generated by railway traffic. The characterization of the ground was performed using a combination of conventional and geophysical tests (cross-hole and SASW). The mechanical characterization of the track was performed through receptance tests and the rail unevenness profile was accurately measured. The vibrations due to the passage of more than 20 trains were measured. First, a selection of the results is presented and analysed in detail; later, the variability of the responses is briefly discussed. The presented data may be used by other researchers (e.g. in the validation of their prediction models), since it can be downloaded from www.fe.up.pt/~csf/DataCarregado.zip.
