USCS Soil Classification Calculator

Classify soils using the Unified Soil Classification System (USCS/ASTM D2487) from grain size analysis and Atterberg limits, with group symbols and descriptive names.

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

Classify soils using the Unified Soil Classification System (USCS/ASTM D2487) from grain size analysis and Atterberg limits, with group symbols and descriptive names

Each component has a specific meaning:

  • Unified Soil Classification System from grain size analysis — The unified soil classification system from grain size analysis recorded for the patient or scenario being assessed.
  • Atterberg limits — The atterberg limits recorded for the patient or scenario being assessed.

Note: Interpret the uscs soil classification result against the clinical thresholds and context described above.

How to Use

Enter the Unified Soil Classification System from grain size analysis, Atterberg limits for the patient or scenario you are assessing. Classify soils using the Unified Soil Classification System (USCS/ASTM D2487) from grain size analysis and Atterberg limits, with group symbols and descriptive names. Use the uscs soil classification result to inform your clinical assessment.

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