Seabed Anchor Base
We make use of applicable buoyancy loading and seabed geotechnical data to generate an anchor design, usually based on a simple gravity base concept.
Design requirements usually include both a detailed geotechnical and structural design report, both of which can be undertaken by our engineering personnel.
The Anchor bases are usually designed around steel 'eggbox' fabrication, incorporating a skirt to penetrate the seabed soil. The 'eggbox' is then filled with a suitable ballast material, such as high density concrete, iron ore or other suitable high density material.
The anchor base design also has to incorporate suitable lifting points as well as mooring system connecting points which may all require to be designed to allow connection and disconnection by ROV.
Often the anchors may comprise of multiple units which may each be easily lifted by the crane capacity available on offshore installation vessels. The multiple units are then designed to 'dock' together to provide a single structure with the required total weight in water.
As with the steel frame structure the Anchor Bases are protected from corrosion by painting and cathodic protection.