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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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Cast-In-Drilled-Hole Piles
JULY
1997
6-3
continuous operation. As the auger moves down the hole, the drilling
action of the flights forces the drill cuttings up and out of the hole.
Hence, much material has to be shoveled away from around the drilled
hole. Continuous flight augers are most commonly used for short piles
or for predrilling for driven piles. They may also be used where overhead
clearance is not a problem.
Short flight augers are powered by “Kelly Bar” units fixed to the drill rig.
The length of these augers generally vary between 5 and 8 feet. The
auger is attached to the end of the Kelly Bar and, as drilling progresses,
the auger (and material carried on the flights) must be removed
frequently. After the auger is removed from the drilled hole, the material
is “spun” off the flights onto a spoil pile and the operation is repeated.
There are also a variety of different types of augers that may be used in
different situations. Augers may be single flight (Figure 6-2) or double
flight (Figure 6-3). Double flight augers are better balanced than single
flight augers and are more useful when alignment and location of the
drilled hole are important due to clearance or right-of-way problems.
Soil augers are equipped with a cutting edge that cuts into the soil
during rotation. The drill cuttings are carried on the flights as the auger
is removed from the drilled hole and are then “spun” off. The pitch of
the flights can vary and should be chosen for the type of material
encountered. Soil augers may not work well in cohesionless materials
where the soil will not stay on the flights during auger extraction. They
may also not work well in highly cohesive materials where the auger
may become clogged.
Rock augers are equipped with high-strength steel cutting teeth that can
cut through soft rock. These augers typically have flights with a very
shallow pitch so that rock pieces, cobbles and boulders can be extracted.
Rock augers are generally the preferred tool for drilling in materials
that have a high concentration of cobbles or boulders.
Figure 6-2: Auger – Single
Flight
Figure 6-3: Auger – Double
Flight