Consolidation settlement calculator
Enter your values. The answer and the full worked solution update as you type.
Result
Settlement133.2 mm
Step-by-step solution
Normally consolidated clay
S = Cc·H/(1 + e₀)·log₁₀((σ′₀ + Δσ)/σ′₀)
S = 0.3·4/1.9·log₁₀(130/80) = 133.2 mm
Key formulas
- Normally consolidated
- S = Cc·H/(1 + e0)·log₁₀(σ′f/σ′0)
- Final stress
- σ′f = σ′0 + Δσ (at mid-depth of the layer)
- Overconsolidated, σ′f ≤ σ′p
- S = Cr·H/(1 + e0)·log₁₀(σ′f/σ′0)
- Overconsolidated, σ′f > σ′p
- S = H/(1 + e0)·[Cr·log₁₀(σ′p/σ′0) + Cc·log₁₀(σ′f/σ′p)]
- Overconsolidation ratio
- OCR = σ′p/σ′0
- Time for consolidation
- t = Tv·Hdr²/cv
- Drainage path
- Hdr = H/2 (double drainage), H (single drainage)
- Time factors
- U 50% → 0.197, 60% → 0.287, 70% → 0.403, 80% → 0.567, 90% → 0.848
Practise Consolidation settlement
A calculator gives the answer. In the exam you need the method: practise it with new problems, hints and worked solutions.
More calculators
Beam deflection calculatorShear force and bending moment diagram calculatorEuler buckling calculatorManning equation calculatorMoment of inertia calculator (second moment of area)Bending stress calculator (σ = My/I)Centroid calculator (composite shapes and polygons)Truss calculator (method of joints)Density calculator (mass, volume and density)