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PESEVERANCE MINE PASTE BACKFILL SYSTEM
Xstrata
Matagami, Quebec
Project Year 2008
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MG Engineering acted as subcontractor to PSI Inc.
(Concord, CA.) to provide hydraulic, civil and mechanical design for this
project. The project consisted of a Putmeister piston-type paste pump feeding
about 260m of buried pipe which connected to a system of underground piping and
supports, suspended from the mine tunnel’s ceiling. These connected from the
boreholes at 5 drift levels to each stope to be backfilled in each of the 3
underground mine areas.
The work included a small pump station, several large manholes for the buried
portion and steel pipe supports for the tunnel section of the work. The maximum
pipeline operating pressure underground is in the 1000psi range and supports on
the rough tunnel ceiling are designed for large thrusts. The pump station and
manholes are robust in order to withstand full groundwater pressure and
anchorage thrust for the paste line. The hydraulics calculations for this
project were provided by Don Hallbom, PhD, PSI's slurry/paste specialist.
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PESEVERENCE MINE PASTE BACKFILL SYSTEM |
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