RC SWIVEL
FOR HARD ROCK DRILLING
Convert Drilling Rigs for RC
Down-the-hole-hammer
Cluster Drill
Conventional Rotary Bit
600 Ferguson Avenue North
Hamilton, Ontario, Canada L8L 4Z9
Tel: 1.905.528.7924 Fax: 1.905.528.6187
Toll Free: 1.800.668.9432 (in Canada and USA)
www.berminghammer.com
Email: bfssales@berminghammer.com
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2018 - RC Drilling - Half Page Vertical.pdf 1 2017-12-04 9:01:49 AM
Geotechnical drilling
simple for field crews to load, haul and install nearly identi-cal
foundations day in and day out. All the pre-planning and
time spent during the design and construction consultation
phases ensured that everything fit, was simple to transport
and install, and could be replicated quickly from day to day.
Through optimizing, the team was able to ensure foundation
execution was as efficient as possible.
Design changes
Even with all the planning and geotechnical work, the design
and execution phases were not without issues. During the
geotechnical investigation of the ancestral Slave Lake Basin,
it was determined that roughly 38 sequential structures did
not meet any of the established design criteria.
During the initial investigation, it was determined that the
muskeg in this area was roughly 20 to 30 metres deep before
drilling would encounter a layer of dense clay. A CPT rig was
mobilized to complete additional testing in the very weak
top zones to refine the design criteria for the foundations.
This data was analyzed, and supplementary designs were
then issued to the project. The re-design required modifica-tions
to the top of the piles, additional piles and splicing, and
gusseting of the pile cap to accommodate minimal support
in the top 10 metres of the foundation. In addition, tangent
structures were switched to a four-pile battered screw pile
configuration with gussets and thicker welds on pile caps
and tower shoes.
COVER FEATURE
28 Q1 2019 www.pilingcanada.ca
/www.berminghammer.com
/www.pilingcanada.ca
