ماذا تعني صب العمود على خازوق ؟؟؟؟
??is there pile cap or Raft
if the foundation is Raft on piles , so forget 8 cm is nothing
If the foundation are pile caps, you have tolerance 3 inches =75 mm so can you say 8cm out of position is nothing if the pile cap is thick.
an other solution
you can make re-design and add tie-beam or groung -beam