Visit Count:
330
Interpretative
Friction Angle
Friction angle together with cohesion defines the shear strength parameters of soil. Its definition is derived from the Mohr-Coulomb failure criterion. It can be determined in the laboratory by direct shear test or triaxial tests or from theoretical correlations with density or N SPT number.
The current tool sets the rules to calculate friction angle for granular soils based on N SPT number.
Visit Count:
0
Interpretative
Rock Shear Strength Parameter Evaluation
Fit and plot rock and soil shear-strength envelopes for four failure criteria — generalized Hoek-Brown, Mohr-Coulomb, Barton-Bandis and power curve — from entered parameters or by curve-fitting laboratory test data. Exports to Excel, PDF, RocData (.roc) and RocLab (.rlb).