GREAT CANADIAN PROJECTS
Temporary Secant
Shoring Wall
Special precautions for specific ground conditions
Doublestar Drilling was awarded the large-scale condo
development project, West Village, in April 2017 by
Cidex Group, which is located on the west entrance
of Calgary’s downtown core. Due to the successful
collaboration between Doublestar Drilling (DSD) and Cidex
Group earlier in 2017 on The Hat project in the East Village,
both parties were eager to be working together once more.
DSD equipped their crews with three large piling rigs, two
Liebherr LB-28 rigs and one Liebherr LB-24 rig, to ensure the
client’s schedule was met. To further prepare themselves,
DSD took special precautions such as segmental casing to
confirm the best drilling practices were being used for this
job’s specific ground conditions. A total of six hundred and
thirty-eight 880-mm diameter piles were installed during the
four months of piling.
Due to the high-density work area, coordination of traffic
to ensure safe access and strategic organization of all move-ment
to reduce congestion and minimize any traffic flow
impacts was a main priority. DSD minimized noise levels
to reduce any impact to the surrounding residential towers
with special sound dampeners on the Kelly Bars, as well as
engine silencer kits on the Liebherr drilling rigs. Idling time
was restricted only to meet production requirements. Their
well maintained Liebherr drilling rigs have the latest engine
technology, thus further reducing emissions.
Anchor drilling began in early July and the company has
currently completed a third of the installations. Their crew
is using the Davey Kent 725 rig and the Interoc AN150 rig
to install 36-mm Dywidag bar up to 54 feet in length. All of
the tie-back anchors will be stressed at 125 per cent of their
Submitted by Doublestar Drilling
PHOTOS COURTESY OF DOUBLESTAR DRILLING
PILING CANADA 69