Body to Ground Spring in ANSYS CLassic

Hi All,

I want to model underground circular pipe embedded inside ground/earth for transient structural analysis in ANSYS Classic.

I am using shell element for pipe structures. To represent surrounding ground/earth,

I want to use Springs of appropriate stiffness on outer periphery of pipe structures.

Can anybody guide/help how to represent this springs? Which element to use in ANSYS Classic.

Or can somebody show me any another way of solving this problem.

Thankyou,

Amit