General

The direct shear test provides data needed for evaluation of the shear strength parameters that is cohesion C and angle of internal friction for drained and undrained conditions, and for cohesive and cohesionless soils.

Apparatus

Direct shear apparatus with shear box.

Dial gauges or load sells

Balance, sensitive to 0.1g

Procedure

Procedure and data sheets [right-click | "save target as" Excel Office 2000 ]

References

Al-Khafaji & Andersland (1992), pages 485-490.

Lambe (1951), 29 - 42.