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APPENDIX 2G
GUIDELINES AND RECOMMENDATIONS
Chapter 2
Helical Foundation Systems
3. FSI engineering shall have access to all documents and information relating to the load test
and the load test results, including project specifications, test loads, failure criteria, subsurface
information, installation field logs for all test piles/anchors and reaction piles, calibrations of test
equipment, and field logs of load tests.
4. The engineer of record understands and considers opinions and recommendations by FSI
engineering regarding options to proceed in the event of unsatisfactory load test results.
FSI Engineering Role and Limitations
1. FSI engineering acts in an advisory capacity only, whether in preliminary design, on site issues
and adjustments, use of FSI products and equipment, or interpretation of load test data.
2. FSI engineering assumes no liability in the event that capacity is not achieved, piles/anchors
require increased depth or length, or a revised helix plate configuration is needed.
3. FSI and FSI engineering reserve the right to refuse participation in any preliminary design, project
review, or field load test operation at its discretion.
Review of Load Test Data
1. Upon request of the FSI installing contractor or the engineer of record, FSI engineering may offer
opinions and recommendations regarding the results of the load test. The field installation logs for
the test pile/anchor and reaction piles, the test pile/anchor deflection versus load measurements,
and all other applicable information should be scanned and emailed to FSI engineering at the
earliest opportunity to allow adequate time for review.
2. Please allow at least 24 hours per test from the time of submittal of the field logs for FSI engineering to
evaluate the information and offer an interpretation and opinion of the load test results. If the information
submitted is incomplete or illegible, additional time may be required for interpretation of data.
Suggested Installation Procedure for Test Piles/Anchors, Reaction Piles and
Load Frame
1. If FSI engineering will be involved with interpretation of load test data, the following information
shall be provided prior to installation of the test pile/anchor and reaction piles: make and model
of installation equipment with ratings for hydraulic fluid pressure and flow rate; make and model
of the drive head; method of torque monitoring with any back-up information and/or calibrations,
expected ultimate pile capacity, and the load test failure criteria. Provide same information to
engineer of record for review and approval.
2. In the event that no soil information or inadequate soil information is provided, it is recommended
that helical test probes be installed on the proposed site to a depth at least 10 feet beyond
the anticipated pile tip depth using calibrated torque monitoring equipment. See Geotechnical
Investigation Guidelines in Appendix 2G for helical test probe installation procedures.
3. It is highly recommended that field installation torque/differential pressure recordings be logged in
one-foot increments for the test pile/anchor and reaction piles. At a minimum, torque/differential
pressure readings must be recorded on five-foot intervals up to the last ten feet of installation,
where then one foot interval readings are required to the termination depth. Field installation logs