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Micro Piles |
Pressure Grouting |
Rock Anchors |
Permeation Grouting
Soil Nailing |
Compaction Grouting |
Micropiles |
Injection Grouting |
Chemical Grouting
Our
techniques apply when adding new structures:
especially
rock anchor,
microfine cement,
soil nailing,
micropile
installations for
foundation support.
We
specialize in
slope stabilization,
anchors,
permeation grouting,
foundation repair
and support,
grouting,
soil nails,
rock drilling,
micropile installations, and
sinkholes. We
use a
problem-solving approach geotechnical
architecture of buildings, bridges,
water plants, sewage plants, tunnels,
sinkholes,
caisson,
shoring,
underpinning,
agriculture, and
roads
construction. We
are experienced in these applications:
micro piles,
sinkhole repair,
permeation grouting, pressure
grout,
soil nails,
chemical grouting,
micropiles,
compaction grout, and
rock anchors.
Our specialties are
rock anchor,
acrylamide and
compaction grouting,
mini piles,
sinkhole repair,
micropiles,
acrylamide grouting, and
soil nailing.
We will continue to
dedicate ourselves to
excellence,
including
insurance mortgage, in our performance, in our
integrity, and in our relationships with our
customers. We will carefully weigh our
decisions, actions, and results to make sure
that we remain the most trusted name in the
geotechnical contracting industry. Please
visit our website
http://www.rembco.com/.
Add Concrete Construction URL
|
Driven Piles
JULY
1997
7-41
Check the lifting procedure to ensure that the pile is not overstressed at anytime during
picking.
Allowable Stress
PSI tension
= '
5 f
c
Measure piles and paint the necessary one foot marks so blow counts can be determined.
Check the ends of the piles. Prestressing steel should be flush with the pile head. The head
of the pile should be square.
With concrete piles, make sure the cushion blocks are maintained in good condition. If the
driving is hard, they may have to be changed once or twice per pile.
Steel Piles
If the piles are to be spliced, the Contractor must have a prequalified welder do the work. If
the welder has been performing similar type work on other Caltrans jobs and 12 months
have not elapsed since this work, the welder does not have to run a prequalification test.
Verification of the welder’s work record can be obtained by calling the Office of Materials
Engineering and Testing Services (METS) in Sacramento with the welder’s name and social
security number.
Some welders who are not listed with METS will have qualification tests that were per-
formed by a private testing laboratory. Prequalification can be accomplished in this
instance by forwarding a copy of the test reports to the nearest Transportation Laboratory
office where they will verify the welder’s qualifications.
If the welder does not meet either of the above requirements, a prequalification test will
have to be made. A review of the ANSI/AASHTO/AWS D1.1 Welding Code will outline the
requirements.
It is obvious that all of the aforementioned takes time. Hence, it is extremely important that
determination of welder qualification be made as early as possible. It should also be noted
that once the welding work has been completed on the job by the certified welder, the
Engineer should forward a copy of the work record to the Office of Materials Engineering
and Testing Services. This will help to maintain current records and hopefully save some-
one some time later on. Also keep in mind that just because a person holds a welding
certification, it does not mean you do not have to look at the welding work.