Construct · 1 fields · 1 citations

rock quality designation: a standalone construct

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Rock mechanics

the percentage of a drill core run made up of intact pieces longer than 10 cm, an index of rock jointing.

In rock mechanics, rock quality designation refers to the percentage of a drill core run made up of intact pieces longer than 10 cm, an index of rock jointing. This meaning comes from Deere (1988) in Rock Classification Systems for Engineering Purposes.[1]

Unit
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Nearby constructs

index5 fields · 11 citationsjingle · one word, five constructs quality6 fields · 13 citationsjingle · one name, six constructs

References

Deere, D. U., & Deere, D. W. (1988). The Rock Quality Designation (RQD) Index in Practice. In Rock Classification Systems for Engineering Purposes (pp. 91-101). ASTM International. https://doi.org/10.1520/stp48465s

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