When I raise the grade I will in turn raise the frost line..........does this not make sense? Come on.
No concrete was poured on an existing grade, everything was ecavated.
Ignore whatever grade you see in the picture as it will not be as so in the end.
The edges have 8" concrete (some places more)........the pad is 4-5".
See the upper patio? There will be about 2' of soil there as I will be installing boulders to retain a 3-6 ft "S" shaped planter bed that will border the patio. Grade behind the wall will be raised.......1'.
Additionally, structure consists of rebar, mesh and fiber.