Friction Angle on Pile Skin
The friction angle δ is calculated on the basis of the following graph according to the internal friction angle φef, the volume of the pile, and its type (according to the corresponding curve):
- curve "a": steel pipes
- curve "b": wooden piles
- curve "c": concrete prefabricated piles
- curve "f": other steel cross-sections, CFA, and bored piles
Relationship between δ/φ and pile volume
Pile skin friction angle δ can be also inputted manually in the "Adding new soils" dialog window.