With rock at a reachable depth, a driven pier finds refusal quickly and holds well.
Under Orchard Hill the clay layer sits on rock, which is a favourable situation for a driven pier. There is something genuinely solid at a reachable depth, so the pier meets refusal quickly and bears on material that will not move.
The limitation is the same as anywhere. A push pier needs the weight of the structure to drive itself down, and much of the housing out here is light frame on brick piers. Where that is the case we recommend helical piers instead and explain the reasoning.
Where there is enough weight, the install is efficient. Small pits at the affected footings, hydraulic driving to refusal with each pier verified by gauge pressure, and a staged lift afterward. Rural access means there is normally room to work at every location.
Our push pier installation scope is the same on every Orchard Hill home, whatever the Spalding County ground turns out to be doing.

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