This chapter collects information on mooring of an underwater station, potential difficulties and solutions.
Scour* is the removal of sediment such as sand and gravel from around bridge abutments or piers. Scour, caused by swiftly moving water, can scoop out scour holes, compromising the integrity of a structure. It could cause serious risks to an underwater station and it is necessary to to take preventive measures.
Suction piles could prevent the structure from tilting or loosing integrity. These are empty pipes with a cap on top that sink into the ground by their own weight. Then air is sucked out of the interior and the cap is sealed. For removing, this order is reverted. The mooring company Intermoor published an interesting article named “How suction piles work?” on their homepage.
The habitat La Chalupa used a hydraulic pile system that maintained a straight position on uneven ground. This system is similar to research stations in Antarctica, where the structures have to be pushed out of the ice regularly.