2012, GEO, Zone 3 - Dogger Bank, Geotechnical Survey (Tranche A and B)

Forewind Ltd. contracted GEO to conduct a geotechnical site investigation including seabed Piezo-Cone Penetration Testing (CPTU) at the planned Offshore Wind Farm at Dogger Bank. The worksite for the present campaign is primarily Tranche B of Dogger Bank Zone located in the UK part of the North Sea. 80 tests were performed in Tranche B and 8 tests performed in Tranche A. In total 88 deep push seabed CPTUs with a target depth of 40 metres below seabed were carried out. On 6 of the locations an additional test (re-run) was performed. The objective of this geotechnical investigation is to provide CPT data for Tranches A and B of the Dogger Bank Zone, part of the UK Round 3 wind farm development. The investigation is aimed at groundtruthing and integrating with the geophysical data to allow a 3D GEO-model to be developed. The geotechnical offshore activities were carried out from the vessel Blue Alfa between 2012.05.25 and 2012.06.08. The operations were conducted on a continual 24-hour basis. This ESRI ArcGIS shapefile is also supplied which represents the CPT locations and provides attribute information of the results.