Foundation Types

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Brendan Clifford

February 14, 2023 00:39

What are the differences between each foundation type?

What type of soil is good for each type?

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  Rebekka O'Melia February 14, 2023 21:28

  Friction piles are used in sandy/silty conditions where the soil shifts easily.  Sites like a river bed.

  The slab is easily used on rocky sites.  

  And a full foundation wall is needed in areas where the frost deep is deep.  Footings are designed to spread the load of the building across a larger area, based on whatever the soil capacity is.

  Hope this helps.  Maybe review the Fundamentals of Construction book.

  Rebekka O'Melia, R.A., NCARB, B. Arch, M. Ed, NOMA, Step UP ARE 5.0 Courses

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