drilled piers
drilled piers
(OP)
Greetings all,
I put a call into my local contractor, but figured since I'm waiting I'd ask. I am looking at a foundation wall, 12" thick and 13' deep. Next to this is a 3' dia. drilled pier (or pile) that is 8' deep. The distance from the edge of pier to wall face is 12" +/- 2". Taking into account the drilling rig bit and head. It seems to me that this would be difficult to implement. Am I correct?
The loads involved with the pier are small, around 7.5kip combined dead and live. The soil against the foundation is back-fill and not in-situ. As always any insight would be greatly appreciated.
I put a call into my local contractor, but figured since I'm waiting I'd ask. I am looking at a foundation wall, 12" thick and 13' deep. Next to this is a 3' dia. drilled pier (or pile) that is 8' deep. The distance from the edge of pier to wall face is 12" +/- 2". Taking into account the drilling rig bit and head. It seems to me that this would be difficult to implement. Am I correct?
The loads involved with the pier are small, around 7.5kip combined dead and live. The soil against the foundation is back-fill and not in-situ. As always any insight would be greatly appreciated.






RE: drilled piers
RE: drilled piers
Is there a better solution like building a haunch on the wall? Or forming and pouring a pier down to the existing wall footing.
RE: drilled piers
The pier size was necessary to accomodate architectural cladding over the column. It's more for bearing surface than loading.
Jike,
How would that affect the existing foundation?
RE: drilled piers
RE: drilled piers
If the pier does not extend to the base of the wall, then you would need to evaluate surcharge on the wall.
RE: drilled piers
RE: drilled piers
RE: drilled piers
If the pier is drilled within 2" of the foundation wall and extends down to the bottom of the strip footing (12'), will it overlap the footing projection?
What about the weeping tile at footing level?
Could helical piles be considered with a 3 ft. diameter pile cap?