Free hanging monopile installation demonstration

FREE HANGING MONOPILE INSTALLATION DEMONSTRATION IN THE NETHERLANDS

In 2016, the CAPE VLT-320 was used to upend and install a monopile with a slip joint connection with a length of 27 meter, weighting 127 tonnes and a bottom diameter of 4 meter at the Maasvlakte 2 in the Netherlands. The pile served as a foundation for a demonstration turbine.

As part of the DOT demonstration project, the CAPE VLT was used to demonstrate its capabilities to upend and drive the pile to final penetration without the need for any other handling tools or support/guiding frame.

The Slip Joint technology was also tested which is why the 4 meter diameter pile had a conical top, reducing to 3.26 meter. The hydraulic clamps used were capable to deal with this conical shape thanks to the special shaped jaws.

Application details

Application
Monopile installation
Pile type
Monopiles
Penetration
15m

PILE DETAILS

Pile type
Monopiles
Pile model
Slip joint
Pile length
27.25m
Pile weight
127t
Pile wall thickness
40-60mm
Pile diameter
3.26-4m
No. of piles
1

PROJECT DETAILS

Period
2016
Country
The Netherlands
Location
Maasvlakte 2, Rotterdam
Market
Offshore Renewables
System/end usage
Offshore Wind Turbine & Research
Operator or end customer
DOT
Installation contractor
DOT
Type of vessel
Floating sheerleg
Name of vessel and owner
Matador 3, Bonn & Mees
Mode
Anchors

Main Reasons for solution choice

NO NEED FOR GRIPPER OR INSTALLATION FRAME

UPENDING, LIFTING, DRIVING IN SINGLE OPERATION

STABILITY

SELECTED EQUIPMENT

CAPE VLT-320

Equipment configuration
CAPE VLT-320 Single
Eccentric moment
320kgm
Max. line pull
500t
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