GeoCon provide site investigation services along a cable from a major off shore wind farm just off the coast of Abergele, North Wales. GeoCon have been subcontracted by a large contractor to manage the site investigation of the proposed cable route which will run on shore from Abergele and continue inland to St Asaph where it will be connected to a major substation which in turn will provide electricity to power homes across the area. This projectif part of RWE NPower’s continued efforts to generate renewable electricity via both off shore and on shore wind farms.
The site investigation involves cable percussion boreholes, trial pitting, window sampling and CPT’s along the cable route.
The trial pitting was carried out as a general investigation technique along the length of the proposed cable route to investigate the shallow ground conditions along the site, with subsequent geotechnical smpling and analysis.
Cable percussion boreholes were drilled on either side of the major crossings including the A55, with CPT holes performed adjacnt to each cable percussion borehole.
Window sample boreholes were drilled on either side of the smaer crossings such and drainage ditches and local water courses.
Ground water monitoring standpipes were installed in all the cable percussion and window sample boreholes with subsequent monitoring to establish the groundwater regime across along site.