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i'm modelling a staged construction for a tunnel (NATM), during the excavation process i have to describe the stress relaxation (according to the convergence confinement method) but i don't find a way to introduce a stress distribution orthogonal to the curved line of the crown. I would like to know...

Dear Alfonso,

Thank you for your reply, i understood my mistake

this is my file

Good morning. I'm dealing with several tutorials for code bright, i would like to know where i can find the .gid file for the tutorial "sequential excavation", (if it is available somewhere), because when i launch my simulation i receive the error "Convergence is not possible, dtime=d...