Soil consolidation settlement worksheet calculator

Calculate ideal normally-consolidated primary settlement with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use ideal normally-consolidated primary settlement to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Layer thickness (m)
5
Initial void ratio
0.8
Compression index Cc
0.25
Initial effective stress (kPa)
100
Final effective stress (kPa)
180
Ideal normally-consolidated primary settlement (m)
0.177273

Try another scenario

Layer thickness (m)
6
Initial void ratio
0.8
Compression index Cc
0.25
Initial effective stress (kPa)
100
Final effective stress (kPa)
180
Ideal normally-consolidated primary settlement (m)
0.212727
Calculation method

Calculation method

Ideal normally-consolidated primary settlement (m)

Normally consolidated one-dimensional settlement=H×Cc/(1+e0)×log10(σfinal/σinitial). No creep, unloading or preconsolidation model.

Symbols and units
a
Layer thickness (m)
b
Initial void ratio
c
Compression index Cc
d
Initial effective stress (kPa)
e
Final effective stress (kPa)

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; Normally consolidated one-dimensional settlement=H×Cc/(1+e0)×log10(σfinal/σinitial). No creep, unloading or preconsolidation model. 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.
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Further reading

Method reference ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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