Can I correctly calculate displacement the buried pipeline?
Which displacement is "large displacment"? 500mm, 5000mm?
You can certainly calculate displacement on a buried pipeline in AutoPIPE. Is your second question in relationship to an analysis warning or something? There is a displacement tolerance set for non-linear analysis that might be what you are looking for.
Can I properly calculate the upheaval buckling in Autopipe?
Can you please comment the Karims answer https://communities.bentley.com/products/pipe_stress_analysis/f/autopipe-forum/66329/upheaval-buckling-analysis-for-buried-pipeline
Is his statement right?
i think I have a similar issue with this. https://www.kodi.link/