Box in a box to avoid Crossrail vibrations

Deep underground a box has been built inside a box with special protections against vibrations from Crossrail and Northern line tunnels.
(c) Skanska
A new entertainment venue, the Outernet is being built next to Tottenham Court Road, and while most of the publicity has been on the above-ground visual effects, the heart of the Outernet is a 2,000 people venue built underground.
The Crossrail tunnels next to the venue were built with a floating track to reduce vibrations, but the venue’s loc