Crowdly

None of the above.

Moves away from the soil.

Does not move.

Passive Condition is when the wall:

Lateral Earth Pressures

Moves into the soil.

None of the above.

Moves away from the soil.

Does not move.

Active Condition is when the wall:

Lateral Earth Pressures

Moves into the soil.

None of the above.

Moves away from the soil.

Does not move.

Principle stresses are the stresses acting on planes where there are no shear stresses. The major principle effective stress is:

Stress State Definitions

The average value of effective stress.

The maximum value of effective stress.

The minimum value of effective stress.

The Mohr-Coulomb failure criterion (or "envelope") represents:

Stress State Definitions

The distribution of pore water pressure within a soil.

The soil's shear strength at any particular normal effective stress.

The combination of normal and shear stresses acting on planes at different orientations at one point.

The Mohr's circle for effective stress graphically represents:

Stress State Definitions

The distribution of pore water pressure within a soil.

The soil's shear strength at any particular normal effective stress.

The combination of normal and shear stresses acting on planes at different orientations.

A dense soil expands by 0.018 mm in the vertical direction for an increment of horizontal displacement of 0.2 mm when sheared in a direct shear box. The dilation angle ψ (degrees) is closest to:

Dilation Angle

-5

The shear strength at large shear strain is called:

Shear Strength Definitions

The peak shear strength

The undrained shear strength

The critical state shear strength

The peak friction angle is:

Shear Strength Definitions

A constant

A fundamental soil property

Not a fundamental soil property

Shear Strength Definitions

Dense and loose soils will:

Reach different void ratios and the same shear strength at large shear strain

Reach the same void ratio and the same shear strength at large shear strain

Reach the same void ratio but different shear strengths at large shear strain