01045-2
CUTTING, CORING AND PATCHING
PART 3 - EXECUTION
3.1 CONDITIONS
A. Inspection:
1. Inspect existing conditions, including elements subject to movement or
damage during cutting, excavating, coring, backfilling, and patching.
2. After uncovering the work, inspect conditions affecting installation of new
work,
B. _ Discrepancies:
1. If uncovered conditions are not as anticipated, immediately notify the
Engineer and secure needed directions.
2. Do not proceed in areas of discrepancy until all such discrepancies have been
fully resolved.
3.2 PREPARATION PRIOR TO CUTTING AND CORING
A. Provide all required protection including, but not necessarily limited to, shoring,
bracing and support to maintain structural integrity of the work.
B. All cutting and coring shall be performed in such a manner as to limit the extent of
patching.
C. All holes cut through concrete and masonry walls or slabs shall be core drilled
unless otherwise approved. No structural members shall be cut without approval of
the Engineer and all such cutting shall be done in a manner directed by him. No
holes may be drilled in beams or other structural members without obtaining prior
approval. All work shall be performed by mechanics skilled in this type of work.
If holes are cored through floor slabs they shall be drilled from below.
The Contractor shall determine from Owner’s information, logical deduction and
field testing if there are embedded electrical conduits, wiring or piping in the coring
locations and shall readjust locations if possible to avoid coring through them. If
concealed embedded conduit and piping are damaged, or severed, the coring
contractor shall immediately notify the Contractor, Owner and RPR to determine
impact of the damage and develop and implement a plan to repair the damage and
reactive the lines.
F. If embedded concealed conduit, wiring or pipe is damaged or severed and all
reasonable steps were taken by the Contractor to identify embedded items, and
alternate routing was investigated, the repair work will be compensated by the
Owner through a Change Order. If it was reasonable to expect an embedded item
could have been present at the location, the Contractor shall repair at no additional
cost to the Owner.
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3.3. CORING
A. Coring shall be performed with an approved non-impact rotary tool with diamond
core drills. Size of holes shall be suitable for pipe, conduit, sleeves, equipment or
mechanical seals to be installed.
B. All equipment shall conform to OSHA standards and specifications pertaining to
plugs, noise and fume pollution, wiring and maintenance.
13089K
