Hi Dennis,
I also have a similar issue. As you can see in the picture, there is a tunnel which continues beyond the blue plate. Behind the blue plate, there is concrete volume for a certain thickness, thereafter it is the soil till the end of model. But I can see there is a certain protrusion of soil when the soil is being excavated as shown in second picture. As a result in the output I can see a bit of soil protruding into the tunnel lining plate although the tunnel lining plate completely continues from the blue plate to the end of model. The excavation stage also converges. What can be the reason for this protrusion as a result, soil ingression although it is not modelled in the staged construction. I can se this soil protrusion in mesh as well. Can you please help ?
: the tunnel being zoomed in :
Dear Piyush,
You have double posted this question.
Please make sure this is not just a visualization issue because of the scale factor used on the displacements. Hence, check the real displacements in the soil and the lining to see if the soil is really protruding into the tunnel. Probably it isn't....
With kind regards,
Dennis Waterman