Quest use a variety of drilling techniques on both surface and underground to provide geotechnical information.  Downhole geotechnical surveying is carried out as normal, including

• Soil testing (including undisturbed soil sampling)
• Packer testing
• Cone Penetration Testing (CPT)
• Standard Penetration Testing (SPT)
• Downhole logging
• Directional drilling for tunnel alignment or target drilling
• Ground control

We can also offer solutions for geotechnical drilling in locations with difficult or restricted access

Lowering a Diamec 250 core rig down a dam face, Trawsfynydd Power Station, for testing concrete quality

Carrying out Piezometer testing for Amey Roadstone