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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/.
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Driven Piles
JULY
1997
CALTRANS FOUNDATION MANUAL
7-39
When driving starts:
NO.
ITEM DESCRIPTION
1
Verify the pile location at the start of driving.
2
Verify plumbness or batter of the pile at the start of and during driving.
3
Monitor and log the blow count, stroke and penetration (Refer to the
“Logging of Piles” section later in this chapter).
4
Stop driving at proper bearing and penetration.
After completion of driving piles:
NO.
ITEM DESCRIPTION
1
Verify proper pile cutoff.
2
Prepare copies of pile logs to be sent to the Office of Structure Construction
in Sacramento in accordance with Bridge Construction Memo 3-7.0.
Verification of Hammer Energy
Some method of field verification of driving energy must be available to the Engineer. For
single acting diesel, steam or air hammers, the simplest method is to measure the stroke of
the hammer and multiply this by the weight of the ram. While some manufacturers
disagree with this method, this remains the best method available in the field. For diesel
hammers, measure the depth of ram below the top of the cylinder before driving and add
the height of ram visible during driving. This may require the painting of one foot marks
on the trip carriage.
Some hammers have rams with identifiable rings which are visible during driving. The
location of the rings normally is shown on the manufacturer’s brochure.
The maximum rated stroke for maximum rated energy for many hammers is given in
Bridge Construction Memo 130-2.0.
Another method of determining the actual ram stroke of an open end diesel hammer is
accomplished by measuring the ram stroke from the blow rate. The equation involved with
this method is sometimes called the Saximeter equation. Saximeter is a trade name for a
device used for remote measuring of the stroke of an open end diesel hammer or the
measurement of the hammer speed. An example is also available in Appendix E.