ISKRIT / Site investigation & geotechnics / Shear · triaxial · oedometer
Site investigation & geotechnics
Mechanical soil properties: friction angle, cohesion, moduli
From direct shear and triaxial test results the tool determines the internal friction angle and cohesion by least squares fitting, and computes the oedometer and deformation moduli from consolidation data.
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Free, no sign-up · interface in Russian
Standards
GOST 12248 (direct shear, triaxial, oedometer), processing per section 7 of GOST 20522.
Input
Normal stress and shear resistance pairs, or consolidation data.
Output
φ, c, Eoed, E, diagrams.
What it does
- Friction angle φ and cohesion c by least squares
- Triaxial test series
- Oedometer modulus Eoed and deformation modulus E
- Shear and consolidation diagrams
Free and full version
Free
0 ₽
- Code-based calculations with no run limits
- Input validation and printable results
- Works instantly, no sign-up required
Full version
On request
- Save tests and projects
- Export diagrams and tables to XLSX
- Import data from Excel
- History per project
Questions
How are φ and c determined?
By least squares linear fitting of the strength envelope.
Is E derived from Eoed?
Yes, with the β conversion factor from consolidation testing.
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