24 Jan 2012 – concretesubmarine.com/ FORUM ... Submarine Tunnel Structures - model for a underwater city. Submarine Tunnels are modular, expandable, ...
6 Apr 2008 – Concrete submarine yacht hull, a concrete submarine yacht hull, is designed to recieve a similar level of maintainance as submarine tunnels...
Second, steel needs maintainance, concrete not. This is why oil rig legs and submarine tunnels are made in concrete not in steel. You could not take a platform ...
Another report proposes a concrete submarine tunnel system to float on the surface of the seabed. Even though the investment cost could be as low as US$ 700 ...
a concrete hull will be fine with the same level of maintainance that have submarine tunnels oil rigs, bridge foundations, to keep it barnacle free ...