Welcome to The Forum!

Unfortunately, my experience with A/G pools doesn't include the non-buttressed type. I can offer my take on what I'd do to make one, or maybe make one less likely to fail (I'd have reinforcement all around the pool at the top and bottom and possibly the middle - I haven't seen a schematic for the pools so don't know if they have them).

I wish I could be more helpful however - please feel free to ask me (us) any pool questions you have, maybe I'll do better next time

As 1 last thing, please heed Aylad's advice!!