SPECIALIZED DRILLING
We offer cased hole drilling for a number of different applications
including:
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Underground mining
providing access to locations through contrasting materials such as backfill, broken
ground and rock. The cased raises can them be used for placement of fill or ventilation
shafts.
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Underground mining
applications for non cased holes for slots, ventilation, services, fill raises.
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Railroad
applications such as rail bed crossings, bridge pilings and service installations.
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Civil construction
applications for road crossings, bridge pilings and building foundations.
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A video is available for
information on this drilling system, outlining drilling through backfill and rock at the
Falconbridge Kidd Creek Mines in Timmins Ontario. We would be pleased to send you a copy
of this tape and an information package at no cost or obligation to you.
The components were
manufactured by Holte Manufacturing of Eugene Oregon.
Art and his crews offer unsurpassed service to the mining and drilling industries.
Breakthrough Drilling of Timmins, Ontario, Canada distribute the
Holte product line in Canada. The key
components to the drilling system are:
1.RC Top Drive
2.RC Drill Pipe
3.Casing Driver
4.Casing
5.I.T.H Hammer
6.URG Underreamer
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Reverse Circulation makes
blind boring possible.
We utilize reverse circulation in the drilling process. Air, water and drilling mudd is
sent down the outside section of the RC pipe. Cuttings are discharged through the 6
" center section of the RC pipe.
Casing keeps the hole open through bad
or broken ground!
During the drilling process casing is added each
time a rod is changed - every four and a half feet - the casing is welded and pushed with
the bit down the hole. The casing is kept within about a foot of the bit
The casing driver assists the casing down the hole.
If tight spots are encountered, the casing driver is used to help move the casing into the
hole. This driver incorporates a one thousand pound piston and works on the same principle
as an in the hole hammer.
The URG Underreamer drills quicker and
with more stability than eccentric reaming.
Once the desired depth is drilled, the bit is
retracted by turning in reverse for a half turn, this colapses the gauge reamers enabling
us to pull the drill string out of the hole wall leaving the casing installed.
For more information on our services,
please contact us!
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