Caisson Quay Wall & backfill soil modeling...

[chris]

Hi...
I'm trying to model the behaivor of the Caisson type Quay wall with backfill soil.
So, I used PressureDependent and IndependentMultiyield material.
But, when I updated material stage from elastic to plastic, computer runs for more than 2 days... not stop...
Are there someone what is problom ?
Are there any other good modeling scheme or advice ?
Thanks...

[silvia]

you might want to contact the material authors.