Specifies the soil stiffness along the axis of the pipe on a stiffness per length basis. This stiffness value acts in both directions along the axis of the pipe. This option is required if Soil Model No. is set to 1; otherwise, leave this option blank.
The smallest allowable non-zero value is 0.5.
To simulate a rigid, perfectly plastic soil for axial pipeline deformation, enter
1.0E12.