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In the case of diamond drilling, the core that is recovered in sticks longer than 10 cm is expressed as a percentage of the rock quality designation (RQD. High quality materials have RQD values greater than _____
Correct answer is '75'. Can you explain this answer?
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In the case of diamond drilling, the core that is recovered in sticks ...
Understanding RQD in Diamond Drilling
In diamond drilling, the Rock Quality Designation (RQD) is a crucial metric used to evaluate the quality of rock core recovered. It specifically measures the proportion of intact core pieces longer than 10 cm in relation to the total length of the core run.
What is RQD?
- RQD is expressed as a percentage.
- It quantifies the degree of jointing or fracturing within the rock mass.
- Higher RQD values indicate better rock quality.
Significance of RQD Values
- An RQD value greater than 75% is considered indicative of high-quality rock.
- Rocks with RQD values in this range are typically less fractured, more stable, and suitable for various engineering and construction applications.
Categories of RQD
- RQD 0-25%: Very poor quality (highly fractured).
- RQD 25-50%: Poor quality (significant jointing).
- RQD 50-75%: Fair to good quality (moderate jointing).
- RQD > 75%: High quality (well intact core).
Conclusion
Understanding RQD and recognizing that high-quality materials have RQD values greater than 75% is essential for geologists and engineers. It helps them assess the suitability of rock for construction and mining projects, ensuring safety and stability in various applications.
In diamond drilling, the Rock Quality Designation (RQD) is a crucial metric used to evaluate the quality of rock core recovered. It specifically measures the proportion of intact core pieces longer than 10 cm in relation to the total length of the core run.
What is RQD?
- RQD is expressed as a percentage.
- It quantifies the degree of jointing or fracturing within the rock mass.
- Higher RQD values indicate better rock quality.
Significance of RQD Values
- An RQD value greater than 75% is considered indicative of high-quality rock.
- Rocks with RQD values in this range are typically less fractured, more stable, and suitable for various engineering and construction applications.
Categories of RQD
- RQD 0-25%: Very poor quality (highly fractured).
- RQD 25-50%: Poor quality (significant jointing).
- RQD 50-75%: Fair to good quality (moderate jointing).
- RQD > 75%: High quality (well intact core).
Conclusion
Understanding RQD and recognizing that high-quality materials have RQD values greater than 75% is essential for geologists and engineers. It helps them assess the suitability of rock for construction and mining projects, ensuring safety and stability in various applications.
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In the case of diamond drilling, the core that is recovered in sticks longer than 10 cm is expressed as a percentage of the rock quality designation (RQD. High quality materials have RQD values greater than _____Correct answer is '75'. Can you explain this answer? for IIT JAM 2025 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about In the case of diamond drilling, the core that is recovered in sticks longer than 10 cm is expressed as a percentage of the rock quality designation (RQD. High quality materials have RQD values greater than _____Correct answer is '75'. Can you explain this answer? covers all topics & solutions for IIT JAM 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the case of diamond drilling, the core that is recovered in sticks longer than 10 cm is expressed as a percentage of the rock quality designation (RQD. High quality materials have RQD values greater than _____Correct answer is '75'. Can you explain this answer?.
In the case of diamond drilling, the core that is recovered in sticks longer than 10 cm is expressed as a percentage of the rock quality designation (RQD. High quality materials have RQD values greater than _____Correct answer is '75'. Can you explain this answer? for IIT JAM 2025 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about In the case of diamond drilling, the core that is recovered in sticks longer than 10 cm is expressed as a percentage of the rock quality designation (RQD. High quality materials have RQD values greater than _____Correct answer is '75'. Can you explain this answer? covers all topics & solutions for IIT JAM 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the case of diamond drilling, the core that is recovered in sticks longer than 10 cm is expressed as a percentage of the rock quality designation (RQD. High quality materials have RQD values greater than _____Correct answer is '75'. Can you explain this answer?.
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