Soil Compression Index Calculator (Cc)

Calculate the compression index Cc of cohesive soil from void ratio and effective stress data obtained in oedometer tests, with Skempton and other empirical correlations.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)
σy — Normal Stress Y (MPa)
τxy — Shear Stress (MPa)
⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.
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How It Works

Calculate the compression index Cc of cohesive soil from void ratio and effective stress data obtained in oedometer tests, with Skempton and other empirical correlations

Each component has a specific meaning:

  • Void ratio — The void ratio recorded for the patient or scenario being assessed.
  • Effective stress data obtained in oedometer tests — The effective stress data obtained in oedometer tests recorded for the patient or scenario being assessed.

Note: Interpret the compression index cc result against the clinical thresholds and context described above.

How to Use

Enter the void ratio, effective stress data obtained in oedometer tests for the patient or scenario you are assessing. Calculate the compression index Cc of cohesive soil from void ratio and effective stress data obtained in oedometer tests, with Skempton and other empirical correlations. Use the compression index cc result to inform your clinical assessment.

Frequently Asked Questions