The video, created by Dutch heavy lift company Boskalis and issued by the International Association of Dredging Companies, explains the work of a trailing suction hopper dredger.
Trailing Suction Hopper Dredgers can fill their own holds (hoppers) by sucking material from the seabed using a trailing suction head fitted to pipes that trail over the bed as the ship sails. The work is similar to this of a vacuum cleaner.
Trailing suction hopper dredgers can operate independently of other equipment and are able to transport the dredged material over long distances.
Then, there are three ways for depositing the material:
- through hatches in the bottom of the ship
- by rainbowing or
- it can be pumped ashore through a pipeline for land reclamation.
