Abstract
Nowadays, there is an increased interest in developing performance based specifications for quality control during the construction, that can provide more realistic information about the life cycle behaviour of the track.In this research, Falling Weight Deflectometer (FWD) tests were undertaken during the construction of a 29km new railway line, at the top of the substructure and in different months. Based on FWD deflections, structural models of the track were established through back-calculation, and the variation of the moduli for different testing campaigns was evaluated. The main results obtained are presented and analysed in this paper.
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