THANK YOU all for your responses. I agree that tabulated values of soil constants are generally not a good idea to rely upon for design. I will have values of the subgrade constant provided to me by the geotechnical engineer for final design.
My question is more related to the computer...
I am Trying to use CWALSSI (non-linear finite element soil-structure interaction software by Corp of Eng.) to model a post and panel wall. Since the program uses a 1 foot trib width, all section properties are in "per foot of wall" basis. I followed the PileBuck (or CalTrans) method...