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Vibration
free and low noise, this environmentally friendly piling system
is ideally suited to installation in unstable soil conditions
and urban environments. Vibro-pile has Australia's largest fleet
of high capacity CFA rigs which enable us to construct CFA piles
with higher load capacities and to greater depths than our competitors
and has made us a world leader in this field.
With
load bearing characteristics superior to conventional bored piles,
CFA piling can be installed through unstable and saturated soils,
where conventional bored piles would require the use of drilling
fluids and/or extensive and costly casing. Production rates in
the order of three times that for conventional bored piles are
achievable, with corresponding construction program savings.
Boring
is by means of a continuously flighted auger on which the bored
spoil is transported to the surface, while preventing the unstable
walls of the hole from collapsing.
On
completion of boring, concrete is pumped under pressure through
the hollow stem of the flighted auger. Finally, reinforcement
is inserted into the concrete using a hydraulic vibrator clamped
to the top of the cage.
An
on-board computer monitors the penetration rate, torque, extraction
rate, concrete pressure and oversupply, all of which are displayed
for the operator, in real time, so as to ensure pile quality and
integrity.
Diameters
ranging from 400 mm to 1200 mm are available to depths in excess
of 40 metres.
Rock
socketing of CFA piling is also feasible in medium strength rock,
by using special cutting heads, thus enabling the installation
of extremely high-load capacity piles.
Vibro-pile
applies the latest design theories and proven construction methods,
ensuring that all available soil capacity is harnessed to provide
a highly efficient foundation.
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