Micro-pile skin friction
Micro-pile skin friction
(OP)
Hi,
I'm currently doing a design of a steel stepover structure to allow access across a conveyor. The client have requested that they want to use steel stakes/piles to tie the columns directly into a cement stabilised pavement. The standard piles (or stakes rather) are 20mm diameter by 360mm long (embedded depth).
The pile will be taking, as a worst case, 6kN uplift force and approximately 3kN of horizontal force.
I am just wondering if anyone had any ideas of how I could estimate the skin friction between cement stabilised soil and the steel pile. The only information I could find is for piles in excess of 2.5m long.
Any advice would be appreciated.
Regards.
I'm currently doing a design of a steel stepover structure to allow access across a conveyor. The client have requested that they want to use steel stakes/piles to tie the columns directly into a cement stabilised pavement. The standard piles (or stakes rather) are 20mm diameter by 360mm long (embedded depth).
The pile will be taking, as a worst case, 6kN uplift force and approximately 3kN of horizontal force.
I am just wondering if anyone had any ideas of how I could estimate the skin friction between cement stabilised soil and the steel pile. The only information I could find is for piles in excess of 2.5m long.
Any advice would be appreciated.
Regards.





RE: Micro-pile skin friction
RE: Micro-pile skin friction
Thank you for your abundance of help though.
Regards,
D. Best.
RE: Micro-pile skin friction
RE: Micro-pile skin friction
The load combination I used to calculate the worst scenario reaction forces is 0.9*DL + 1.0 x Wind_hortizontal + 1.0 x Wind_uplift.
Regards,
D. Best
RE: Micro-pile skin friction
My inclination is to bore/core to about a meter & then install into grout or epoxy.
Design values will take a bit of conjecture, to define the cement stabilised pavement.