ELIF - POLE VS PIER FOUNDATION
What is the difference between a pole foundation and a pile foundation. I took one of Elif's practice quizzes asking for the best foundation on a sloped site or a site that floods periodically. I chose pile foundation with the logic that I've never heard of a pole foundation but instead always piles vs caissons and piles are poles.
The correct answer was pole but I am not understanding what the difference is. Isn't a pile a pole?
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Pole is best for very steep slopes because it reduces the cut and fill dramatically. Piles are driven into the ground and more specifically, frictional piles are mainly used when the frost depth is too low or drilling down too far to bedrock is not a cost effective option, piles are used in friction to provide a stable foundation.
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