公开(公告)号：US12123159B2

公开(公告)日：2024-10-22

申请号：US17424279

申请日：2020-01-21

Applicant: ITREC B.V.

Inventor： Eric Romeijn

IPC: E02D7/08 ,  E02D13/00 ,  E02D13/04 ,  E02B17/08 ,  E02D27/42 ,  E02D27/52

CPC classification number: E02D7/08 ,  E02D13/00 ,  E02D13/04 ,  E02B17/08 ,  E02D27/425 ,  E02D27/525 ,  E02D2200/1685

Abstract: A pile driving method for driving a pile, e.g. a hollow and open ended pile, e.g. a large diameter pile having an outer diameter of at least 5 meters, e.g. a monopile of an offshore wind turbine, into the soil, e.g. into the seabed. Use is made of a pile driving system which comprises a drive head member that is configured to engage the pile, and a solid mass drop weight assembly comprising a support structure and comprising solid drop weight elements supported by said support structure, preferably solid steel drop weight elements being composed of steel elements, e.g. stackable steel elements, which drop weight elements have a total mass of at least 100 tonnes, e.g. more than 500 tonnes. e.g. more than 1000 tonnes, e.g. more than 2000 tonnes, which drop weight assembly is vertically mobile relative to, e.g. above, the drive head member. Further use is made of a lift system that is configured to bring the drop weight assembly into an initial height position relative to the drive head, and a quick release system adapted to effect quick release of the lift system.

公开(公告)号：US10858223B2

公开(公告)日：2020-12-08

申请号：US16478056

申请日：2017-11-17

Applicant: ITREC B.V.

Inventor： Cornelis Martinus Van Veluw ,  Eric Romeijn ,  Joop Roodenburg

IPC: B66C13/10 ,  B63B27/10 ,  B66C13/02 ,  B66C23/52 ,  B66D1/52 ,  B66D1/76 ,  B66D3/08 ,  E21B41/00 ,  F16L1/16 ,  E21B19/00

Abstract: A deepwater hoisting system includes a synthetic fibre rope winch assembly including a motor driven first winch and a length of synthetic fibre rope driven by said first winch. The synthetic fibre rope has an end remote from the first winch. The system further includes a steel wire winch assembly including a motor driven second winch and a length of steel wire driven by said second winch. The steel wire has an end remote from the second winch. At least the second winch is an active heave compensation motor driven winch. The system further includes a lifting block having a lifting block sheave, through which the synthetic fibre rope is run. The end of the synthetic fibre rope is connected to the end of the steel wire, so that the lifting block is suspended in a double-fall arrangement.