Excel Spreadsheet: #geotechnical_engineering #rock_quality #excel_spreadsheet :
✅ GEOtExcel: Soil Mechanics,Foundation Engineering & Engineering Geology Excel Spreadsheets:
✅ Geotechnical Engineering: Engineering Geology: RQD Calculation (Rock Quality Designation)
✅ Concept-oriented Excel Spreadsheet: RQD Concept (Random core samples, Random Examples)
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Designed by Dr. Ahmad Fahmi
Rock Quality Designation (RQD) measures the quality of rock cores from boreholes by calculating the percentage of core pieces longer than 10 cm. It helps assess rock mass integrity, with higher RQD values indicating better quality rock with fewer fractures, and lower values indicating more fractured, poorer quality rock.
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