Examples
Examples
Try the starting example
- Selected effective stresses (kPa)
- 100,200,400
- Measured void ratios
- 0.9,0.8,0.7
- Compression index Cc
- 0.332193
- Intercept e at 1 kPa
- 1.564386
- Void-ratio residuals (JSON)
- [0,0,0]
Try another scenario
- Selected effective stresses (kPa)
- [101, 200, 400]
- Measured void ratios
- [0.9, 0.8, 0.7]
- Compression index Cc
- 0.334589
- Intercept e at 1 kPa
- 1.57038
- Void-ratio residuals (JSON)
- [0.000242722563491,-0.000481960773469,0.000239238209979]
Calculation method
Calculation method
Compression index Cc
Fit void ratio against log10(effective stress) over user-selected virgin compression range; Cc=−slope.
Intercept e at 1 kPa
Fit void ratio against log10(effective stress) over user-selected virgin compression range; Cc=−slope.
Void-ratio residuals (JSON)
Fit void ratio against log10(effective stress) over user-selected virgin compression range; Cc=−slope.
Symbols and units
- a
- Selected effective stresses (kPa)
- b
- Measured void ratios
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; Fit void ratio against log10(effective stress) over user-selected virgin compression range; Cc=−slope. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.