I am using APDL for soil modeling. I have used Solid 187 for piles and Solid 186 for soil. After defining all the material properties of soil using drucker prager criterion and pile properties, i have created contact element between pile and soil. After meshing, the side surfaces of soil are constrained in horizontal direction and the bottom portion is constrained in all directions and then the load is applied. But while solving it the error i.e. The Value of UX at node 15681 is 15645009.5 is showing which is greater than the current limit of 1000000 i.e. it is an unconstrained model. It is also shown in picture attached.
If anyone can help me with this problem please reply.