A method of constructing a voided drilled shaft concrete structure is provided. Drilled shafts are large-diameter cast-in-place concrete structures that can generate extremely high temperatures during the concrete hydration/curing phase. The method includes creating an excavation, inserting a cage or an inner casing into the excavation, and filling with concrete the space between the outer surface of the cage or inner surface and the inner surface of the excavation.
Mullins, Gray and Johnson, Kevin, "Voided drilled shafts" (2012). USF Patents. 333.
University of South Florida