Minimum Reinforcement in Auger Cast Pile
Minimum Reinforcement in Auger Cast Pile
(OP)
I have seen an Auger cast pile with just two # 7 bars at the center in 16" dia pile, 50 feet deep. Which makes only close to .4% reinforcement. I think it should be minimum of 1 %. Any light this reinforcement. Has anyone seen such low reinforcement in ACIP piles.
Also my research has shown that minimum of 4 bars souls be provided with ties.
If anyone of you could shed more light on this, will highly appreciate. Thanks
Also my research has shown that minimum of 4 bars souls be provided with ties.
If anyone of you could shed more light on this, will highly appreciate. Thanks





RE: Minimum Reinforcement in Auger Cast Pile
I'm guessing it depends on potential for uplift and preference. Call your local installer.
RE: Minimum Reinforcement in Auger Cast Pile
RE: Minimum Reinforcement in Auger Cast Pile
RE: Minimum Reinforcement in Auger Cast Pile
RE: Minimum Reinforcement in Auger Cast Pile
RE: Minimum Reinforcement in Auger Cast Pile
In Texas, one full-length bar down the center plus a short cage seems to be standard practice.
Installing full-length cages can be a problem for piles in sand. Some water bleeds out and makes the grout too stiff pretty quickly. Acting quickly may help, and if it won't go, the pile can be re-drilled and regrouted, and then it usually goes. But there's not much profit in that.
Although I don't see the full-length bar as necessary if no seismic and no uplift, I kind of like the practice because it is almost a test of the continuity of the pile. If soil is sucked into the pile, a bar with centralizers probably won't go down. Also, a #9 bar in compression adds some structural capacity that may help compensate for a flaw.