ASC provides research, consultancy and tailored technological solutions for local geosphere characterisation, remote monitoring of critical rock excavations and engineered structures for geological storage.
ASC carried out the design and data processing for imaging the Excavation Damage Zone (EDZ) of the ONK-TKU-3620 niche at Posiva’s Onkalo Underground Disposal Facility, excavated through drill and blast, to obtain a P-wave tomographic image of the top 0.8 m of the tunnel floor. The Pwave tomography covered a three-dimensional volume of the EDZ field sampled by multiple two dimensional planes defined by drill-holes, providing 30 2-D sections along the North-South, East-West, North West-South East and North East-South West directions. Click on the link to download a summary of the observations.
