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Negative Skin Friction of Pile
Negative skin friction is the value of shaft resistance developed between the pile and soil in a downward direction and results in the increase of the load on the pile.Negative skin friction is develops when piles are driven through a layer of fill material which slowly compacts or consolidates due to its own weight, and the layers underlying the fill consolidates under the weight of the fill
resulting in a downward force that increases loading on shaft piles and reduces the bearing capacity of the piles.
The downward movement of soil develops skin friction between the pile and the surrounding soil and it is termed as negative skin friction. Negative skin friction can be developed from lowering on water level in compressible soils such as clay, peat, mud and soft soil and also due to increase in stress.
Negative skin friction is the value of shaft resistance developed between the pile and soil in a downward direction and results in the increase of the load on the pile.Negative skin friction is develops when piles are driven through a layer of fill material which slowly compacts or consolidates due to its own weight, and the layers underlying the fill consolidates under the weight of the fill
resulting in a downward force that increases loading on shaft piles and reduces the bearing capacity of the piles.
