Rotary boreholes
Rotary drilling techniques are used where boreholes are required in very dense gravel or bedrock. RSK recovers samples of bedrock in seamless plastic tubes for logging by a suitably qualified engineer and testing in its laboratories. Most of our rotary coring work relies on Comacchio MC300 drilling rigs, which are suitable for limited access work.
Key features:
- Flight augers in various sizes (100–200 mm diameter)
- Rotary core drill and case (76–150 mm diameter)
- Rotary window samples (76–31 mm diameter)
- Standard and cone penetration tests, and U4s
- Packer tests (76–150 mm diameter)
- Variable and constant head permeability testing
- Borehole vane testing
- Core orientation
- Down the hole drilling (78–50 mm diameter)
- Simultaneous drilling and casing using a Symmetrix 140-mm diameter casing
- Flushing using air, air mist, water, foam or polymer
- Personal track safety certified staff
- Construction Skills Certification Scheme certified staff
