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APPENDIX 2F
MODEL SPECIFICATIONS
Chapter 2
Helical Foundation Systems
12.1.4 If a helical pile fails to meet the acceptance criteria in a pile load test:
12.1.4.1 Install the pile to a greater depth and installation torque and re-test; provided
that, if a maximum embedment length constraint is applicable, continued
installation will not exceed said maximum length constraint, or
12.1.4.2 Replace the pile with one having more and/or larger helix plates. The
replacement pile must be embedded to a length that places the last helix plate
at equal to its own diameter beyond the depth of the first helix plate of the
replaced pile without exceeding any applicable maximum embedment length
requirements. The replacement pile must be re-tested, or,
12.1.4.3 De-rate the load capacity of the helical pile based on the results of the load
test and install additional piles. Additional piles must be installed at positions
that are at least three times the diameter of the largest helix plate away from
any other pile locations.
12.1.5 If a helical pile fails a production quality control criterion as described in this Section
or for any reason other than described in this Section, any proposed remedy must be
approved by the Owner prior to initiating its implementation at the project site.
13
INSTALLATION RECORD SUBMITTALS
13.1 The Installing Contractor shall provide the Owner copies of the individual helical pile installation
records within 24 hours after each installation is completed. Formal copies shall be submitted
within 30 days following the completion of the helical pile installation. These installation records
shall include, but are not limited to, the following information:
13.1.1 Date and time of installation
13.1.2 Location of helical pile and pile identification number
13.1.3 Installed helical pile model and configuration
13.1.4 Termination depth, pile head depth, and length of installed pile
13.1.5 Actual inclination of the pile
13.1.6 Final torsional resistance
13.1.7 Calculated geotechnical capacity based on final torsional resistance
13.1.8 Comments pertaining to interruptions, obstructions, or other relevant information