use the finite element analysis method.

In the picture above, the pile driven into the soft clay ground as a drilling pile is schematized to represent the pile$-$soil communication with springs

Pile diameter: $1m$ or $80cm$

Pile length: $40m$

Soil: drilling pile on soft clay soil

$Cu=40k\frac{N}{m^2}$ will be taken.

We will select other necessary data accordingly $($e$.$g$.$ elasticity modulus$).$

The pile$-$soil interaction of the piled raft problem. Build the finite element model to represent it with springs. In geotechnical engineering, you solve it by using the finite element analysis method.