restart analysis and model change 1

[PrateepGeotech]

I during run 3D NATM tunnel in abaqus 6.9 that excavation step of natm so much and i want use restart analysis but abaqus not allow input other command in restart analysis
(model change) plesae tell me about method to can use model change in restart analysis

 

[dgillette]

You may not find anyone here that knows Abaqus (I don't), but there may be an Abaqus user discussion group.

The restart is needed because there is too much strain and it needs to be remeshed?