Geotechnical Tools
Search and use practical engineering calculators. Outputs are preliminary and intended for education, concept screening, and assumption testing.
Soil Parameters
Elastic Modulus from cu
Estimate Young's modulus from undrained shear strength using a soil-type-based E/cu range or an optional manual override.
Inputs
Enter values and run the calculator.
Auto-filled from the selected soil class. Switch to manual override to edit.
Suggested E/cu Ratio Table
Select a soil class to auto-fill a mid-range E/cu ratio, or switch to manual override if you already have a project-specific value.
Active auto-fill: 600
| Soil class | Suggested E/cu range | Auto-filled value |
|---|---|---|
| Soft clay | 100 - 200 | 150 |
| Medium clay | 200 - 400 | 300 |
| Stiff clay | 400 - 800 | 600 |
Auto mode uses the mid-point of the selected range as a screening value. Manual mode keeps the table for reference but lets you enter your own ratio.
Important disclaimer
These results are simplified and indicative only. Please review the site-wide Disclaimer before using this tool in any engineering workflow.