Thank you mister chairman. This lecture about Shield Tail Deformations will cover experiences in The Netherlands with shield deformation problems, give a short summary of the structural behaviour of shield tails with respect to deformations and will end up with some lessons for the future. My name is Coen van der Vliet, currently working for ARCADIS in The Netherlands. My co-authors are Professor Bijlaard from Delft University of Technology, and Gerard Kooijman and Marius Naaktgeboren from the Dutch Ministry of Transport. I also have to mention Deltares for their contribution to the geotechnical research. ### This lecture is based on experiences at the Westerscheldetunnel Project, and mainly covers the research in charge of the client. So lets be honest: this lecture will cover mainly the client’s point of view.
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