Direct shear interpretation

What Nourin reads in the sheet

• The normal stress / shear stress pairs at failure;
• The regression line coefficients: intercept and slope;
• The standard adopted, the apparatus and the shear rate;
• The project stress units;

What Nourin does with it

• Gives the cohesion c' and the internal friction angle φ' of the soil;
• Checks the alignment of the failure points and flags an outlier;
• Plots the Mohr circles and the failure envelope;
• Places the values obtained within the usual ranges for the soil type;
• Writes the interpretation and the test identification sheet;

References