Question

The action of negative skin friction on the pile is to

Answer 1

Answer:

Negative skin friction occurs when concrete piles are situated in soft soils, consolidating soil-mass, etc., resulting in a downward force dat increases loading on shaft piles and reduces teh bearing capacity of teh piles. ... Some relative equations has been established to define teh negative friction zone of piles.

Answer 2

Answer:

The action of negative skin friction on the pile is to reduce the allowable load on the pile.

Explanation:

• There is friction between the pile and the surrounding soil.
• The important characteristic of this friction is that it acts opposite to relative motion.
• Here, the application of Newton's third law of motion is used, that is, every action has an equal and opposite reaction.
• If the surrounding soil settles more than the pile, then the relative motion of the soil will be in the downward direction and the friction in the pile will act towards upward direction as per Newton's third law of motion.
• This is called negative skin friction.
• The phenomenon of sudden lowering of the water table is an example of negative skin friction.