2. Core drilling
2.1 Method
Rotational coring involves cutting a cylindrical sample of rock and bringing it to the surface for visual identification, geotechnical laboratory testing or mineral exploration evaluation.
Early coring methods obtained complete samples by rotating a thick tube with a slit in the part in contact with the rock. This slot facilitated the passage of water to cool the tool and evacuate cutting debris. Wear on the rock was achieved by introducing steel...
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Core drilling
Conclusion
Bibliography
Standards and norms
- Geotechnical reconnaissance and testing – Sampling methods and piezometric measurements – Part 1: Technical principles for soil, rock and groundwater sampling - NF EN ISO 22475-1 - Octobre 2021
- Geotechnical engineering assignments – Classification and specifications - NF P94-500 - Novembre 2013
- Geotechnical reconnaissance and testing – Laboratory tests on soils – Part 3: Density determination of solid particles...
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