the Contracting Officer. Every facility shall be provided by the
Contractor for the Contracting Officer to inspect and measure the
deflection or settlement of the pile under test. Furnishing of measuring
equipment and making measurements of deflection or settlement will be the
responsibility of the [Contracting Officer] [Contractor] [______].
[3.1.2.2
Load Tests
**************************************************************************
NOTE: Insert the number of test piles to be load
tested. The safe design capacity of a test pile as
determined from the results of load test shall be
the lesser of the two values computed according to
the following:
1. One-half the test load which causes a settlement
of 0.25 mm per 907 kg 0.01 inch per ton of test
load; and
2. One-half the test load that causes a gross
settlement of 25 mm one inch provided the
load-settlement curve shows no sign of failure.
**************************************************************************
ARMY NOTE: The designer will specify the method of
load testing and the specific pile driving formulas
used for design.
**************************************************************************
Perform load tests on [_____] test piles in accordance with ASTM D 1143,
Standard Loading Procedure, as modified herein. Perform load tests at
locations shown, or as directed. Provide testing and measuring equipment,
perform loading, and provide observation facilities for a registered
professional engineer employed by the Contractor to inspect and record
settlement and deflection of piles under test loads. Do not mobilize load
test equipment until directed. Loading frames and equipment shall be ready
to place in operation as soon as a test pile has been driven. The loading
equipment shall be of sufficient capacity to apply a maximum load of not
less than [_____] kN. [_____] tons. The ultimate test load shall be
maintained for not less than [24] [____] hours and then unloaded in
accordance with ASTM D 1143.
]3.1.2.3
Driving Piles
Drive job piles with same hammer, cushion, or cap block, and using the same
operating conditions as test piles. No piling shall be driven within 30
meters 100 feet of concrete which is less than 7 days old unless otherwise
authorized. A complete and accurate record of the driving of piles shall
be compiled by the Contractor for submission to the Contracting Officer.
When driving long piles of high slenderness ratio, special precautions
shall be taken to ensure against overstressing and leading away from a
plumb or true position. During driving, pile driving hammers shall be
operated at all times at the rate and conditions recommended by the hammer
manufacturer. Each pile shall be driven continuously and without
interruption [to the [calculated] [indicated] tip elevation] [until the
required depth of penetration and penetration rate per blow have been
attained in accordance with the schedule that the Contracting Officer will
prepare from the test pile driving [and test] data]. Deviation from this
procedure will be permitted only in case the driving is stopped by causes
SECTION 02461
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