Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
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Ensure that pile driving records contain these items:<br />
▼ Project identification number.<br />
▼ Project name <strong>and</strong> location.<br />
▼ Structure identification number.<br />
▼ Date <strong>and</strong> time of driving (start, stop, interruptions).<br />
▼ Name of contractor.<br />
▼ Hammer information.<br />
▼ Hammer <strong>and</strong> pile cushions.<br />
▼ Pile location, type, size, <strong>and</strong> length.<br />
▼ Pile number or designation matching pile layout plans.<br />
▼ Pile ground surface, cut-off, final tip elevation, <strong>and</strong><br />
embedded length.<br />
▼ Driving resistance data throughout driving.<br />
▼ Cut-off length, length in ground, <strong>and</strong> order length.<br />
▼ Comments on unusual observations, including reasons<br />
for all interruptions.<br />
▼ Signature <strong>and</strong> title of the inspector.<br />
Drilled Shafts<br />
For more information see “Drilled Shaft Foundation<br />
<strong>Inspection</strong>” (National Geotechnical Inspector Qualification<br />
<strong>Program</strong>), NHI Course No. 132070A.<br />
Evaluate preconstruction preparation items as applicable:<br />
▼ Review contract requirements.<br />
▼ Preconstruction meeting held <strong>and</strong> minutes documented.<br />
▼ Drilled shaft installation plan submitted <strong>and</strong> approved.<br />
▼ Concrete mix design approved.<br />
▼ Trial mix designed <strong>and</strong> concrete slump loss test run.<br />
▼ Procedure for taking required soil or rock core samples<br />
shaft bottom.<br />
▼ Procedures for protection of existing structures.<br />
▼ Site preparation completed in accordance with the<br />
plans.<br />
▼ Procedures for coffer dam inspection.<br />
▼ On-site equipment <strong>and</strong> tools meet the approved drilled<br />
shaft installation plan.<br />
▼ Correct size(s) casing.<br />
▼ Correct slurry mixing equipment.<br />
▼ Des<strong>and</strong>ing equipment.<br />
▼ Proper tremies.<br />
▼ Proper drilled shaft inspection forms are utilized.<br />
Appendix D: <strong>Inspection</strong>s-in-Depth<br />
CONSTRUCTION PROGRAM MANAGEMENT AND INSPECTION GUIDE (5/01/04)<br />
Review the findings from the trial shaft installation:<br />
▼ Not a production shaft unless allowed by contract.<br />
▼ Met contract requirements.<br />
▼ Problems encountered resulted in positive revisions to<br />
installation techniques or equipment.<br />
Verify production drilled shaft excavation <strong>and</strong> cleaning<br />
procedures as applicable:<br />
▼ Shafts are constructed in the correct location <strong>and</strong> within<br />
horizontal tolerances.<br />
▼ A benchmark is available <strong>and</strong> is used to record shaft<br />
elevations.<br />
▼ Required soil or rock core samples of shaft bottoms are<br />
obtained.<br />
▼ Slurry levels, tests, <strong>and</strong> test reports are conducted<br />
according to specifications.<br />
▼ Soil/rock excavation inspections forms have been<br />
completed.<br />
▼ Permanent/temporary casings meet specifications.<br />
▼ Belling meets specifications.<br />
▼ Excavation logs for each shaft are maintained.<br />
▼ Completed shafts are within vertical alignment<br />
tolerances <strong>and</strong> to the proper depths.<br />
▼ Shaft excavation time meets the specified time limit.<br />
▼ Shaft over-reaming is performed in accordance with<br />
specifications.<br />
▼ Shaft bottoms meet cleanliness requirements.<br />
▼ Shaft inspection forms are completed.<br />
Inspect reinforcing cages to ensure:<br />
▼ Correct size, configuration, <strong>and</strong> tying of reinforcing<br />
steel.<br />
▼ Use of proper spacers.<br />
▼ Correct length of splices.<br />
▼ A positive method to secure cages from settling or<br />
floating during concrete placement.<br />
▼ Proper elevation of the top of the cage.<br />
D–13