Hi all

There is inconsistency between User Guide and F1 Help of Undrained Shear Strength Su. The user guide is saying Friction Coef = Su/600 while F1 Help is saying Friction Coef = Su/0.2873E+2 ???

What happended???

We will check this out. What version are you seeing this in?

I'm using version 6.1 and 7.0, they are same about this matter.

The 600 in Su/600 is 600 pounds per square foot (psf).
600 psf = 4.166 psi = 28.73 kPa
I must assume you are using kPa for your Su (& pressure) dimension. That is why you see "Su/0.2873E+2" in your Help.

Well, it's difficult to understand without unit