Grout Seals - Trelleborg Marine and Infrastructure

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Overview


Grout seals for wind turbines and jackets are used to close the gap between the tower and the pile so that grout can be inserted to make a solid and stable connection.

Offshore wind farms are built using gravity base structures, monopiles or tripods. The design philosophy for wind farms is based on the installation methodology depending on soil properties, water depth and contractor experience. The wind turbines of the Egmond project for example stand on a monopile. After driving the pile into the sea bed a transition piece, around 25m high, is lowered over the top of the pile, the space between the pile and the transition piece is sealed by a Trelleborg inflatable grout seal. This seal is designed to close a substantial gap and simultaneously resist internal pressure. Grouting the space above the grout seal, results in a very strong joint.

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