pad foundationn.Building a slab of concrete which forms the foundation for and spreads the weight of a load-bearing pillar or column.
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1983 J. S. FosterStruct. & Fabric (rev. ed.) I. iii. 69/1 By means of..pad foundations near the surface, the pressure on the soil can be kept well within the known safe bearing capacity.
1991 Constr. News 26 Sept. 15/1 The tubular steel columns are based on pad foundations.