Shear strength of soils

The safety of any geotechnical structure is dependent on the …..

• stress of the soil

• effective stress of the soil

• deformation of the soil

• load of the soil

• strength of the soil

What is a measure of the shear strength of soils due to friction?

• Torsion

• Effective friction angle

• Cementation

• Angle of dilation

• Distortion

Cohesion is a measure of the …..

• Intermolecular forces.

• Molecular forces.

• Destructive forces.

• Axial forces.

• Compressive forces.

What is the small angular distortion?

• shear stress

• normal stress

• shear force

• shear strain

• normal force

What is the result of surface tension of water on soil particles in unsaturated soils?

• Soil compression

• Soil tension

• Cohesion

• intermolecular forces

• Cementation

What is N in the following figure?

• resultant force

• Normal force

• Shear force

• the weight of the block

• the horizontal force

What is T in the following figure?

• shear force

• the horizontal force

• the weight of the block

• normal stress

• resultant force

What is the angle between the resultant force and the normal force called?

• the friction angle

• the cohesion angle

• the adhesion angle

• the apparent angle

• the geometric angle

The horizontal force (H) required to initiate movement, according to Coulomb’s frictional law, is

• horizontal shear stress

• lateral stress

• normal stress

• vertical normal stress

• horizontal shear stress