In expansive soils, drilled piers are subjected to
A)an uplift force in the expansive region of the soil, which generally occurs in the upper soil layer.
B)an uplift force in the expansive region of the soil, which generally occurs well below the ground surface.
C)a downward force in the expansive region of the soil, which generally occurs well below the ground surface.
D)any one of the above, depending on the local geology.
E)none of the above.

Question

Quizplus · Accepted Answer

In expansive soils, drilled piers are subjected to an uplift force in the expansive region of the soil, which generally occurs in the upper soil layer. This uplift force can occur due to the swelling of the soil caused by moisture changes, leading to a decrease in bearing capacity and potential foundation failure.

In Expansive Soils, Drilled Piers Are Subjected to