Noise mitigation system
AssigneeIHC Holland IE B.V.
InventorsBoudewijn Casper Jung, Henricus Gerardus Andreas Van Vessem
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Abstract
A method of and a noise mitigation system for installing a foundation element, in particular a (mono)pile, includes a screen to be placed about a foundation element, in particular a (mono)pile, during driving of the foundation element in an underwater ground formation, to reduce noise input resulting from the driving into the surrounding water, e.g. a river or sea. The method and system comprise a further screen to be deployed about the (first) screen.
Claims17
A method of installing a foundation element in an underwater ground formation by means of a driver, comprising:
- placing a foundation element on the underwater ground formation,
- placing a first screen for reducing noise input from the driver into surrounding water,
- driving the foundation element into the ground formation by means of the driver while the first screen is positioned about the foundation element, and
- deploying a further screen in the water before driving the foundation element into the ground formation, the further screen comprising a plurality of arms movably attached to the first screen and wherein deploying the further screen comprises moving the arms to deploy the further screen between a retracted position and a deployed position such that the further screen is deployed about the first screen at a distance of at least 3 meters, measured between an outer circumference of the first screen and an outer circumference of the further screen with water separating the first screen from the further screen.
A noise mitigation system comprising a first screen configured to be placed about a foundation element, during driving of the foundation element in an underwater ground formation, to reduce noise input resulting from the driving into the surrounding water and a further screen is attached to the first screen and comprises a plurality of arms movably attached to the first screen and configured so as to be deployed about the first screen by moving the arms between a retracted position and a deployed position such that in the deployed position the further screen is deployed with a distance between an outer circumference of the first screen and an outer circumference of the further screen of at least 3 meters.
Dependencies are inferred from the claim text.