Pile shaft resistance in 2D

Hi everyone,

I am currently try to modelling a single plie as soil cluster in an axisymmetric model. 

I am just wondering how could we link the tip capacity and ultimate shaft friction (qp & qs) with the Rinter in our model. 

It seems like we cannot just into these two values, right? I guess it is the Rinter controls the pile resistance. 

Thanks a million.

Regards.