WATER JET CHANNELING IN A MOUNTAIN GRANITE QUARRY

摘要

For a Colorado mountain quarry, the Water Jet ChannelingMethod is far superior to Burning, Sawing, Drilling, or Shooting withPrimer Cord, Water, or Black Powder. Throughout the life of our quarry,which was founded in 1947, we have used all the methods andturned to the Water Jet Channeler, which we invented and patentedas our ideal way to remove dimension granite from our quarry. We jetthe block on 4 sides and remove the block with plugs and feathers onthe backside. The Water Jet uses approx 7.5 l/m (2 gpm) running at310,000 kPa (45,000 psi) to erode the crystals @ 1sm/h (10sf/h).The 0.533mm (.021") nozzle oscillates back and forth to achieve anapprox 5cm (2") channel. Using the Jet, we do not lose corners orcause cracks in our red fine grain light class 5 granite.