Question on Pile Grounding
Question on Pile Grounding
(OP)
We have a project that has buildings with pile foundations with a depth of 25 meters from grade level. We intend to use these piles as a grounding electrode and will provide ground clamps and associated grounding conductors embedded in the concrete pile.
We are caught in a dilemna as to how may piles and which piles are we going to use as a grounding electrode since there are numerous piles that will be used in the building. As a default, we take the piles at the building corners.
For the piles between the corners, is there an industry practice as to what spacing of piles we will take to select a pile as a grounding electrode?
We are caught in a dilemna as to how may piles and which piles are we going to use as a grounding electrode since there are numerous piles that will be used in the building. As a default, we take the piles at the building corners.
For the piles between the corners, is there an industry practice as to what spacing of piles we will take to select a pile as a grounding electrode?





RE: Question on Pile Grounding
RE: Question on Pile Grounding
RE: Question on Pile Grounding
From "Grounding Principles" Erico.Co. Fig 8 page 6:
ht
"Grid with Ground Rods
It may be advantageous to add ground rods to the grid. In doing so, it may be possible to access a low resistivity soil layer. Care must be taken to ensure each ground rod is spaced at least twice the installation depth."
So, the minimum distance has to be 50 m. If your building base is quadrilateral then the corner piles will be the only good grounding electrodes.