Topic 4 Shallow Foundations

For a shallow foundation, depth (D) should be more than width (B).

• True

• False

A _________ is a relatively large slab, used to reduce differential settlement on variable soils or where there is a wide variation in the applied column loading.

• Pad footing

• Strip footing

• Combined footing

• Raft/matt foundation

Taylor (1948) assumed the pressure distribution beneath shallow footing to be _______ for the purpose of design analysis.

• uniform

• deformed

Soil with high compressibility (35% > Dr > 70%) is more susceptible to which type of failure mechanism?

• General shear failure

• Local shear failure

• Punching shear failure

Soil of low compressibility (i.e. dense or stiff soil) with Dr > 70% is more susceptible to which type of failure mechanism?

• General shear failure

• Local shear failure

• Punching shear failure

Soil with very high compressibility (Dr < 35%), is more susceptible to which type of failure mechanism?

• General shear failure

• Local shear failure

• Punching shear failure