Mario, pipes out is pretty easy, by the time you've lifted the tree twice and put it back down the root ball is much looser than when you drove the pipes under, we keep the root ball irrigated the whole time, not flooded but moist. Consequently the pipes pull out easily with a chain.
The pipes were used twice on this job, but they won't be substantial enough for the next job 40T+. There is no reason why with care and patience you can't reuse the pipes again and again.