Internal skin friction for a CHS pile in soft clay.
Internal skin friction for a CHS pile in soft clay.
(OP)
I'm doing a concept design at the moment and trying to calculate the required pile penetration for either 900CHS or 1200CHS steel piles into very soft clay. We've taken zero end bearing into account and only relying on skin friction. For an open-ended steel CHS pile is it reasonable to assume that as the pile is driven the soil column inside the pile (unplugged?) will provide skin friction for the majority of the penetration depth.
At present I have used a factor of 0.75 to reduce the internal friction compared to external friction.
At present I have used a factor of 0.75 to reduce the internal friction compared to external friction.





RE: Internal skin friction for a CHS pile in soft clay.
RE: Internal skin friction for a CHS pile in soft clay.
RE: Internal skin friction for a CHS pile in soft clay.
http://www.pile.com/pdi/faq/?q=Q1049&prod=
I was skeptical but my manager insisted I use internal friction with a 0.75 reduction, note this is for marine conditions with extremely soft soil. Comments are appreciated.
RE: Internal skin friction for a CHS pile in soft clay.
RE: Internal skin friction for a CHS pile in soft clay.
Your manager knows not of what he speaks. Good luck.
RE: Internal skin friction for a CHS pile in soft clay.
RE: Internal skin friction for a CHS pile in soft clay.
f-d
¡papá gordo ain’t no madre flaca!