Slab on grade, deep fill
Slab on grade, deep fill
(OP)
I'm looking at the feasibility of filling in a concrete structure instead of replacing the rotting floor system. My idea was to fill with gravel and top it with a concrete slab at the existing floor level. The fill is pretty deep though, 17 feet. Even using the most suitable free draining material (3/4" screened rock according to the material supplier) and compacting sufficiently, I would still expect some settlement. If we compact to within 95% of max, if it settles the remaining 5% later that would equate to nearly a foot of settlement. 95% is probably pretty ambitious too considering we have to use a jumping jack. Aside from placing the fill and letting it sit for a year or 2, any ideas on abating the settlement without major structural overhaul?
Thanks
Thanks






RE: Slab on grade, deep fill
RE: Slab on grade, deep fill
BA
RE: Slab on grade, deep fill
RE: Slab on grade, deep fill
RE: Slab on grade, deep fill
RE: Slab on grade, deep fill
So you know what the soil properties are below the basement and can make that statement based on facts?
I don't think you can just say that it isn't an issue.
RE: Slab on grade, deep fill
It is sounding like I either have settlement, or I build a new floor system instead.
RE: Slab on grade, deep fill
Compaction Grouting, helical piers, micropiles, driven push pins + structural slab are all other options based on your experience, budget, and settlement allowance.