
Ulstein Idea just successfully delivered the engineering package for the fabrication of a new cutter ladder for the conversion of an existing cutter suction dredger. The cutter dredger will be deployed in China to prepare the seabed for the installation of the submerged Hong Kong-Zhuhai-Macao tunnel project.
The biggest challenge for this project was doubling the lenght of the cutter ladder to reach a working depth of 50 m. Vessel motion and dynamic analysis were used to determine the governing load cases and predict the workability of the cutter suction dredger. Detailed drawings were delivered to Damen Dredging Equipment in order to start the fabrication at the yard of the client in China.
