The interaction of a submerged floating tunnel with a moving vehicle
Tim Sluiter (TU Delft - Civil Engineering & Geosciences)
Karel van Dalen – Mentor (TU Delft - Civil Engineering & Geosciences)
Andrei Faragau – Mentor (TU Delft - Civil Engineering & Geosciences)
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Abstract
Due to the high cost of long spanned bridges or deep tunnels, the interest into a submerged floating tunnel (SFT) has reemerged. In the last twenty years many studies on the SFT have been performed. This report investigates the interaction between a single vehicle, moving at constant velocity, and the SFT. The research is limited to the dynamic response, of both vehicle and tunnel, in only the vertical direction. The SFT is moored to the bed floor and is further kept in position by the buoyance force.
The main question to be answered is: Does the vehicle’s inertia, the design of the SFT (i.e., the length of the tunnel) or the vehicle parameters, because of this dynamic loading, play a significant role in the Ultimate Limit State of the tunnel or the Service Limit State for passenger.