We have deconfinement option to relax the soil in plaxis 2D, similarly do we have any other option plaxis 3D. I have tried surface pressure inside tunnel and could not produce accurate results. Can anyone help me?
Hi,
Deconfinement is a procedure in 2D to model what is in reality 3D behaviour: the tunnel is unsupported over a limited length behind the bore front, whereas in 2D after excavation it would unsupported over infinite length. Since in 3D we can actually model the real limited unsupported length there is no need for a deconfinement procedure in 3D. Hence, it's not available in 3D.
With kind regards,
Dennis Waterman