Concrete foundation placed against shoring
Concrete foundation placed against shoring
(OP)
Four sided soldier pile shoring system installed to excavate for a bridge pier footing. Drilled shafts to be constructed, then concrete footing placed against shoring.
Any concerns about steel piles and timber lagging left in place next to the new concrete foundation? i.e. corrosion, rot, or other issues.
Any concerns about steel piles and timber lagging left in place next to the new concrete foundation? i.e. corrosion, rot, or other issues.





RE: Concrete foundation placed against shoring
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RE: Concrete foundation placed against shoring
Pile & lagging systems are almost always abandoned in place. Sometimes the top 3-5 feet or so of lagging is removed and the piles burned off, but that's about the extent of it. And if you pour your footing against the sheeting, it's not possible to remove the lagging. Will the lagging rot over time? Probably. Will it cause lateral movement of the soil and settlement? Probably not. Many contractors have dug up old lagging to find that it still has enough integrity to prevent the soil from filling that space.
RE: Concrete foundation placed against shoring
A lot has been written on lagging left in place. Generally old lagging is found in good shape years later in subsequent excavations. Lagging that has found to have rot is generally able to prevent movement of fine. Ie.,the lagging may lose strength, but it does lose significant volume that is displsced by the soil.
RE: Concrete foundation placed against shoring
Sorry.