skin friction of CIDH piles

[adidasmayo]

Everywhere I have read so far uses the beta method to calculate the skin friction. This provides a result such as 60H psf where H is the depth of pile. I have seen in some reports where the skin friction value is provided as 300 psf. How is this correlation made? Please help.

 

[Okiryu]

There is not enough information so I am not sure how much help you can get. But, for shaft resistance, the beta method is based on an effective stress analysis. There is also the alpha method which is based on a total stress analysis (Su). Perhaps google for the alpha method and check your results against it.