piles and micropiles, excavator-mounted multi-purpose
HD Drivers, as well as geo-exchange building heating and
cooling systems.
“In the spirit of ingenuity, APE has always had a sound
focus on ways to not only make our products better, but also
to increase the function in which our products can be used in
the industry,” said Matt Fenwick, operations manager for APE
Drilling. “We feel that introducing our geo-exchange system
to our HD piles being installed on projects was a way to do
just that. We may not have discovered geothermal technology,
but we will be damned if can’t make it better.”
Lita Construction, Inc., based in Jamaica, N.Y., focuses
their main line of business on concrete construction, which
includes reinforced concrete, concrete sidewalks, floors
and flats as well as foundation contractors and concrete
and block.
All 22 piles in this project were designed to incorporate
APE’s geo-exchange system. This system creates a closed
loop that can be run in series to exchange the water temperature
circulating through the loop with ground temperature
for both the heating and cooling needs of the home.
Load testing was preformed proving a 280 kip ultimate
load was achieved on the piles and a geo-thermal strain test
was carried out to qualify that the design minimum of 110
BTUs per foot was met. Post testing results not only achieved
110 BTUs, but exceeded expectation by over 90 BTUs per foot
in each of the piling.
Liebherr drilling rigs deployed for plant
expansion at Airbus Defence and Space
Two Liebherr drilling rigs, an LB 28-320 and an LB 36-410,
are being used for deep foundation work as part of the
Airbus Defence and Space plant extension in Immenstaad
am Bodensee, Germany. The machines are equipped with the
rotary drives BAT 320 and BAT 410.
The company Kurt Motz Baubetriebsgesellschaft GmbH
& Co. KG is carrying out foundation work for a new production
building for the “Integrated Technology Centre” (ITC) at
the premises of Airbus Defence and Space, a division of the
Airbus Group. The two Liebherr rigs are in operation for the
contracted deep foundation contractor in Immendstaad.
The machines are part of a package of six new Liebherr LB
devices for the company, Kurt Motz. The official handover
took place directly on the Airbus jobsite.
Using Kelly equipment, the machines are installing cased
drilled piles for the foundations of the new building, which is
an extension of the technology centre and measures approximately
70m by 60m. The single piles are 40m long and have
diameters of 750 and 900mm.
Foundation work involves a total drilling length of 7,900m.
A particular challenge is posed by the closeness to a nearby
lake. In order to avoid groundwater and seawater, a sheet pile
wall was erected using a Liebherr piling and drilling rig, type
LRB 125.
Innovative rotary drives in operation
The Liebherr drilling rigs on site are equipped with rotary
drives, types BAT 320 and BAT 410. The BAT series of rotary
drives, developed by Liebherr, provides the necessary torque
for a multitude of drilling applications. The automatic torque
regulation and the continuous speed optimization react
flexibly to different soil conditions. This ensures optimum
drilling progress.
Economic and user-friendly drilling rigs
A decisive advantage of the LB 28-320 and LB 36-410 rigs is
their smooth and precise control, which provides excellent
INDUSTRY NEWS
PHOTO COURTESY OF LIEBHERR
Liebherr drilling rigs,
type LB 28-320 and LB
36-410, carrying out
foundation work
82 Q2 2017 www.pilingcanada.ca
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/www.pilingcanada.ca
