To those who have used UDSM - Swell Model before, How do you determine the A0, Apl & Ael Parameters?? And also, how do you obtain/calculate parameters PARALLEL TO BENDING & NORMAL TO BENDING PLANE? In this case,  Et, Ep, vpt , vtt .... Any referen

Dear Jackson,

I can see that in the documentation you have the first part in which more details are provided on each aspect of the model and specifically in Chapter 6, you have a summary on this topic.

In principle, as stated in the document, while lab tests can give a qualitative idea of whether swelling can be expected, ideally these model parameters should be calibrated against the results of large-scale field tests.

A question for any reference values, I will leave it open to other fellow geotechnical engineers that may have used this model and would like to share them with you.