Hey all you soil engineers & foundation experts!
So. I’ve read up a lot on piers, especially the helical kind, they seem nice. After growing up on hard slabs, never thought I’d build on one. But my soil is poor (sand) and my water table high (so low shear strength). Both a floating slab or drilling down to solid WILL work. I estimate piers, in my application, are about $4k more, which isn’t a lot in the grand scheme, but I’m building with CMU so I don’t want any flex… I’d need really solid grade beams. Or a floater.
Structurally, which is the overall BETTER option, and why?
PS I’m south so no worry about frost heaves (code is 24″ footer), but I am a little worried after hitting water 42″ down
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