Footing Resting On Piles
Footing Resting On Piles
(OP)
Our QC inspector requires us to remove the wet and loose soil which is present after excavation for footing to be supported by bored piles. As we can see in the site, the foundation level is below water table and it is not possible to compact the soil with required 95% compaction. Is it necessary to remove the soil and replace with granular fill for a footing resting on piles? I think, it may not be necessary since the footing is supported on piles.Please any expert on this, may I solicit your opinion. I am new on this kind of foundation..thanks a lot..






RE: Footing Resting On Piles
RE: Footing Resting On Piles
I just want to seek second opinion, if any who can provide better idea on this situation
RE: Footing Resting On Piles
DaveAtkins
RE: Footing Resting On Piles
RE: Footing Resting On Piles
I'd say remove the loose soil & place self compacting granular fill. place a mud slab. add some large pumps around the area to de-water.
RE: Footing Resting On Piles
RE: Footing Resting On Piles
EngineeringEric's solution is correct, but you probably don't need a mud slab or large pumps. Excavate one foot deep, or so, below and to one side of the footing bottom. Backfill the excavated area with small gravel. Keep a small, shallow "pit" immediately adjacent to the gravel open. Use a modest size diaphragm pump (mud hog) to keep this pit (and the adjacent gravel under the footing) dewatered until concrete placement directly on the gravel has been completed. A nominal 2" or 3" size diaphragm pump should be fine.
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RE: Footing Resting On Piles
RE: Footing Resting On Piles
RE: Footing Resting On Piles