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AssigneeIHC Holland IE B.V.
InventorsBoudewijn Casper Jung, Jan Albert Westerbeek
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The invention relates to a method of installing foundation elements, in particular (mono)piles (2), in an underwater ground formation (3), by means of a driver (4), comprising the steps of placing a foundation element (2) on the underwater ground formation (3) and holding the foundation element (2) in place by means of a gripper (10) mounted on a surface vessel, placing a sleeve (6) for reducing noise input from the driver (4) about the foundation element (2), disengaging the gripper (10), lowering the sleeve (6) onto the ground formation (3), and placing the driver (4) on top of the foundation element (2). The sleeve (6) is held at least laterally with a guide (11) mounted on the surface vessel, at least when disengaging the gripper (10).
Method of installing foundation elements, in particular (mono)piles, in an underwater ground formation, by means of a driver, comprising the steps of
System for installing foundation elements, in particular (mono)piles, in an underwater ground formation, comprising a driver, a surface vessel, a gripper for holding the foundation element in place and mounted on the surface vessel, and a sleeve to be placed about the foundation element and on the ground formation to reduce noise input from the driver, and a guide mounted on the surface vessel for at least laterally holding the sleeve.
Dependencies are inferred from the claim text.