Construction Program Management and Inspection Guide

Ensure that pile driving records contain these items:
▼ Project identification number.
▼ Project name and location.
▼ Structure identification number.
▼ Date and time of driving (start, stop, interruptions).
▼ Name of contractor.
▼ Hammer information.
▼ Hammer and pile cushions.
▼ Pile location, type, size, and length.
▼ Pile number or designation matching pile layout plans.
▼ Pile ground surface, cut-off, final tip elevation, and
embedded length.
▼ Driving resistance data throughout driving.
▼ Cut-off length, length in ground, and order length.
▼ Comments on unusual observations, including reasons
for all interruptions.
▼ Signature and title of the inspector.
Drilled Shafts
For more information see “Drilled Shaft Foundation
Inspection” (National Geotechnical Inspector Qualification
Program), NHI Course No. 132070A.
Evaluate preconstruction preparation items as applicable:
▼ Review contract requirements.
▼ Preconstruction meeting held and minutes documented.
▼ Drilled shaft installation plan submitted and approved.
▼ Concrete mix design approved.
▼ Trial mix designed and concrete slump loss test run.
▼ Procedure for taking required soil or rock core samples
shaft bottom.
▼ Procedures for protection of existing structures.
▼ Site preparation completed in accordance with the
plans.
▼ Procedures for coffer dam inspection.
▼ On-site equipment and tools meet the approved drilled
shaft installation plan.
▼ Correct size(s) casing.
▼ Correct slurry mixing equipment.
▼ Desanding equipment.
▼ Proper tremies.
▼ Proper drilled shaft inspection forms are utilized.
Appendix D: Inspections-in-Depth
CONSTRUCTION PROGRAM MANAGEMENT AND INSPECTION GUIDE (5/01/04)
Review the findings from the trial shaft installation:
▼ Not a production shaft unless allowed by contract.
▼ Met contract requirements.
▼ Problems encountered resulted in positive revisions to
installation techniques or equipment.
Verify production drilled shaft excavation and cleaning
procedures as applicable:
▼ Shafts are constructed in the correct location and within
horizontal tolerances.
▼ A benchmark is available and is used to record shaft
elevations.
▼ Required soil or rock core samples of shaft bottoms are
obtained.
▼ Slurry levels, tests, and test reports are conducted
according to specifications.
▼ Soil/rock excavation inspections forms have been
completed.
▼ Permanent/temporary casings meet specifications.
▼ Belling meets specifications.
▼ Excavation logs for each shaft are maintained.
▼ Completed shafts are within vertical alignment
tolerances and to the proper depths.
▼ Shaft excavation time meets the specified time limit.
▼ Shaft over-reaming is performed in accordance with
specifications.
▼ Shaft bottoms meet cleanliness requirements.
▼ Shaft inspection forms are completed.
Inspect reinforcing cages to ensure:
▼ Correct size, configuration, and tying of reinforcing
steel.
▼ Use of proper spacers.
▼ Correct length of splices.
▼ A positive method to secure cages from settling or
floating during concrete placement.
▼ Proper elevation of the top of the cage.
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