As a knife through the butter
Get an impression of the successful tests of the Gentle Driving of Piles technology in clay
Recently, the GROW project GDP 1.2 carried out several installation tests in the Eemshaven, in the north of the Netherlands. The tests were necessary to demonstrate that the Gentle Driving of Piles (GDP) technique can be used to install monopiles in clay. The previous GDP1.0 project had already shown that the technology works in sand. The project is part of the GDP development programme, which aims to test the technology on a commercial scale by 2025.
The GDP technique combines vertical and torsional vibration. The technology is low-noise and is therefore less harmful to the environment. Compared to conventional installation techniques, this prevents expensive noise reduction measures, puts less strain on the pile and shortens installation time. Because of these benefits, GDP reduces environmental impact and costs.
The results of the recent tests met the expectations. All piles were successfully driven to the target depth. Pile penetration into clay soils occurred very quickly, just as quickly as previously observed in sandy soils. After piling, all piles were successfully removed from the ground using the same GDP vibration technique.
The project consortium consists of CAPE Holland, Deltares, DOT, EDF Renewables, Eneco, IQIP, RWE, Seaway7, Shell, TU Delft and Van Oord.
Please get a short impression of the tests:
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