Hi,
I used 3D Design to design a tunnel. When i caculate, the error shown in the picture appeared, How can this problem be solved
best regards
Nikola
Dear Nikola,
Without project it is quite difficult to understand the reason of «Soil body seems to collapse» message.
The most common reason is soil parameters. So usually we advice to check all soil and structure parameters.
SumMstage is 0.99, so we can suppose, that PLAXIS has almost implemented (calculated) 100% of the changes on the phase.
I'll allow myself to quote PLAXIS Support Team reply for such errors:
When there is this error "Soil body seems to collapse", we recommend to first inspect the following Output plots to understand the mechanism of failure:
- deformed mesh- total displacements (shaded plot)- incremental displacement (shaded plot and/or arrows)- total deviatoric strain (shaded plot)- incremental shear strains (shaded plot)- Plastic Points plot- when applicable: excess pore pressure plot
A combination of these plots will usually give insight into what is happening.
If you still have problems with this model, please submit a service request.
Then, one of PLAXIS support engineers can help you in detail:https://apps.bentley.com/srmanager/ProductSupport
Hope it helps.
I agree with Rushan. First thing is to inspect the specific plots suggested in order to understand what causes this failure.
If you cannot figure it out, please reach out to our support:https://apps.bentley.com/srmanager/ProductSupport