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Downdrag on cast in place drilled piers (caissons)

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Has anyone had any experience with the installation of a sleeve throughout the fill depth in contact with a caisson to eliminate the effect of downdrag on the caisson shaft.
 
I am entertaining the idea of a 24" dia. pvc pipe sleeve, have for now ruled out the use of sonotube.
 
Regards,
 
Mark D. Baker