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In KL Er N F E L D E R
sloughing or heaving of the hole and the formation of a noncondnuous pile. P1es that encounter
re refusal before reaching design tip elevation should be abandoned and a new pile drilled.
Piles should be drilled by the con7actor as accurately as possible in the correct location. The
final position of the pile head should not deviate more than 6 inches from the location indicated
on the plans and should not deviate from the vertical by more than 1 4 inch per 5 feet leng`t.
t The structural engineer may require a stricter alignment specification.
Immediately after a concrete or grout pile is cast, the reinforcing cage must be suspended in the
�p top of the pile. Reinforcing steel should extend far enough above the concrete or grout to insure
i that a sound connection can be made between it and the strucnral element it supports.
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+�! If Auger -cast Piles require cut off, the concrete or g*out must be alloxed to sufTicien''.y cure
before it is cut.
Contractor's Responsibility: All piling should be furnished and installed by a contractor
experienced in similar work and qualified to install piles in accordance with the plans and
.. specifications. The contractor should be responsible for providing all necessary labor.
supervision, materials, tools and equipment to locate, install and cut off or build up piles in
.. accordance with the plans and specifications. The contractor should also be responsible for
using _.1 available data. including but not limited to, the project geotechnical report and the plans
-- and specifications.
The contractor should be responsible for installing drilled in -place piles of the size and to the
elevations shown on the project plans.
Quality Control and Installation .Monitoring: The contractor's work should be performed under
the full time observation of the geotechnical engineer who will be present during the drilling
operations to obserL the work and correlate drilling behavior with subsurface data.
The geotechnical engineer should at all times have access to the work, and the contractor should
furnish the geotechnical engineer with every reason -able facility for checking the ,%orkrmanship
for conformance with the geotechnical aspects of the plans and specifications
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