Minimum spacing requirements for small openings in slabs on grade are established based on opening size. The schedule correlates opening diameters from 1 inch up to a 6-inch maximum with minimum clear spacing distances ranging from 3 inches to 18 inches. The accompanying plan detail sets opening layouts relative to slab edges and requires that reinforcing bars remain uncut and undisturbed.
NOTES: 1. SEE "TYPICAL DRILLED SHAFT" DETAIL. NOTES: 1. DO NOT MOVE OR CUT REINFORCING BARS. D (OF LARGEST OPENING) S (MIN) REMARKS 1" (±) PLAN AT SMALL OPENINGS 6" OR LESS SOG EDGE 6" 6" 2 5/8" 2" 2" (±) 3" TO 4" (±) 5" TO 6" MAX 3" 6" 9" 18" S S D, TYP 1'-0" MIN 13 TYPICAL DRILLED SHAFT SCHEDULE 18 TYP SMALL OPENINGS IN SLAB ON GRADE
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