I modeled a raft pile foundation with a surface load, in stage construction I created the various phases, 0 1 2, in phase 1 I activated the interfaces etc. and in phase 2 the surface load, then I want the displacement load curve, but when I select the stages in x and uz displacements in y, I get a straight line because there are only 3 steps of calculation,but I want to get the curve, how should I do, I also tried to change the load as well but the result is always a straight line.
Dear Alfonso,
Typically curves are plotted against the available steps following a calculation. By default PLAXIS stores one (1) step per phase.
You can try increasing the Max number of steps stored field to larger than 1 value to see more points on your curves. Naturally, the more steps you store the more memory your project will need to be stored (total project size, not RAM).
See the relevant article here: https://communities.bentley.com/products/geotech-analysis/w/plaxis-soilvision-wiki/45910/how-to-setup-the-number-of-steps-stored-in-plaxis-input