test load.
b.
One-half the load that causes a gross settlement of not more than
25 mm 1 inch provided that the load settlement curve shows no sign
of failure.
3.6.5
Tolerances
Test piles shall be located as shown on drawings or as otherwise directed
by the Contracting Officer. Piles shall be installed from the ground
surface existing after general excavation work has been completed. The
maximum variation of the center of any pile from the required location
shall be 50 mm 2 inches at the ground surface, and no pile shall be out of
plumb more than 2 percent. Piles damaged, mislocated, or out of alignment
beyond the maximum tolerance shall be abandoned and additional piles shall
be placed as directed.
3.7
SOIL PROFILE
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NOTE: The requirement of this paragraph may be
waived by those agencies other than NAVFAC that wish
to do so. Indicate on the drawings pile holes
requiring soil probes. Soil probes should be
required at all test pile locations, and at 10
percent of the remaining pile locations.
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At [_____] pile holes, in addition to the test piles, the auger shall be
withdrawn from the ground before the grout is pumped to check the soil
profiles. Drill soil probes within a radius of 6 m 20 feet of their
associated test pile. The Contracting Officer will be present to verify
the soil condition at the "calculated" pile tip elevation and has the right
to increase the soil probe length or require additional soil probes, if
soil conditions warrant. After soil conditions have been inspected and
approved by the Contracting Officer, install test pile[s]. Soil probes
that are located within the tolerances indicated for piles shall be filled
with grout and may be used in the finished work, if approved by the
Contracting Officer and if satisfactorily load tested.
3.8
PROTECTION OF PILES
The sequence of pile installation shall be such that adjacent piles show no
evidence of disturbance. This evidence would actually appear as a drop in
the grout surface. The load applied to the soil by the drilling equipment
shall be far enough away from the pile being drilled to avoid compressing
or shearing of the soil which may in turn displace or squeeze-off the grout
column. No piles shall be placed within 1.5 m 5 feet of adjacent piles
until the grout in the piles has set for 3 days, unless otherwise directed
by the Contracting Officer.
3.9
SPECIAL INSPECTION AND TESTING FOR SEISMIC-RESISTING SYSTEMS
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NOTE: Include this paragraph only when special
inspection and testing for seismic-resisting systems
is required by paragraph 3.2 of FEMA 302, NEHRP
RECOMMENDED PROVISIONS FOR SEISMIC REGULATIONS FOR
NEW BUILDINGS AND OTHER STRUCTURES.
SECTION 02465
Page 16
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