Using water to extract piles from soil

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Offshore windturbines are typically mounted on large hollow steel piles (monopiles) driven in the seabed. Today, Fistuca tested a new method for extracting these piles completely using water pressure. The pile was driven in one month earlier, using BLUE Piling Technology, a revolutionary pile driving method also based on water. By closing off the top of the pile and pumping water into the pile with a high-pressure pump, the pile pushes itself out of the soil. With this method, the monopiles can be completely reclaimed when the windfarms reach their end of life and have to be dismantled, saving tons of steel.

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