▲ 4 r/GeotechnicalEngineer+2 crossposts

Unconventional Foundation advice

I need advice that isn’t pouring concrete.
So, i’m not allowed to have a traditional foundation on a piece of property. It’s technically off grid zoning, but I am allowed to have something solid out there, but just not a massive permanent house. I’m probably going to have a couple of shipping container homes, and also a few different sheds with decks. I’ve seen deck blocks/pier blocks that people put shipping containers on… my concern is them sinking/ shifting even if the ground is dug down and tamped. Is that a valid concern? I think I could get away with using something like 1 1/2” - or 3/4- aggregate and the fines in a hole, rather than poured concrete. Then should I set up these deck blocks on top of these holes with the rock under for added stability? Or is it smarter/safer to just do the deck blocks on the tamped ground? Or should I use the aggregate basically like a concrete alternative and put the pressure-treated post in the dugout subsoil with the fines and aggregate all around it in excess acting like concrete? Or is that very dumb cause they’ll move? 😅
Any advice would be helpful. I am new to building/construction. Also, how should I keep the shipping container home from sagging overtime just lots and lots of deck blocks or is there a more durable solution? Tia!!

Edit: this will *not* be for a full sized home, but several smaller structures. Anything I use will have to be able to be removed on an average size trailer; i.e. a 40” shipping container, or a tiny home that has a road legal width, or similar construction. Thx

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u/White_coyote_ — 4 days ago