Drilling rig
"Drilling rig" in a Sentence (2 examples)
DFI planned to commission a drilling rig to begin an extensive evaluation of the Barteajam and the Henry Town gold prospects in 2009
To reinforce the ground behind the headwall, more than 636 'soil nails' were driven into the wall and connected to the concrete lining. The nails, consisting of steel or glass fibre reinforced polymer tendons, were inserted using a specialised drilling rig.