Dear Prof David / SOil model community,
I am performing coupled consolidation analysis for deep excavation in clay using HP clay model in Plaxis 3D. Performing the undrained analysis, the model works well. When I used consolidation or fully coupled analysis it gives convergence error while it works successfully for other plaxis models ( e.g. HSS). I am using interface element with the plate element which is being used as a wall. If I remove the interface element or make the interface element as permeable then the model with HP clay subroutinel runs successfully (plate is permeable). How can I overcome this convergence problem although i further refined the mesh near the wall?