Geotechnical Tools
Search and use practical engineering calculators. Outputs are preliminary and intended for education, concept screening, and assumption testing.
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Soil Parameters
Friction Angle from SPT
Estimate effective friction angle from corrected SPT resistance using a simple empirical fit.
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Inputs
Enter values and run the calculator.
Important disclaimer
These results are simplified and indicative only. Please review the site-wide Disclaimer before using this tool in any engineering workflow.