Sunday, 24 January 2016

Negative skin friction

Negative skin friction is a downward drag acting on the pile due to downward movement of the surrounding compressible soil relative to the pile.

This happens when the surrounding, compressible soil has been recently filled of formed.

 AS the soil consolidates the earth filed moves downward developing the friction forces on the perimeter of the pile which tends to carry the pile further into the ground.

The negative skin friction may also be developed by lowering of the ground water the increase in effective stress causing consolidation of the soil, with the resulting settlement and friction force being developed on the pile.

No comments:

Post a Comment