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Measuring the Sound Power Level of Percussion Drills.


PB95147526

Publication Date 1994
Personal Author Stein, R. R.
Page Count 16
Abstract Occupational noise caused by the rock drills used in mining was investigated by the U.S. Bureau of Mines. Using a large reverberation chamber and an automated drill test fixture (ADTF), the sound power levels of mining drills were measured to determine if there are types of drills that are advantageous from a noise production standpoint. Test results show that while there are not large variations among types of drills, there are still some choices that could produce a positive effect on overall noise exposure. It is also shown that lower noise exposures are possible using larger drills because of higher production rates and better operator positioning.
Keywords
  • Rock drilling
  • Percussive drills
  • Sound pressure
  • Noise pollution
  • Acoustic measurement
  • Noise reduction
  • Underground mining
  • Sound intensity
  • Coal mining
  • Occupational safety
Source Agency
  • Bureau of Mines
NTIS Subject Category
  • 48A - Mineral Industries
  • 68B - Noise Pollution & Control
Corporate Authors Bureau of Mines, Pittsburgh, PA. Pittsburgh Research Center.
Supplemental Notes See also PB88-231915.
Document Type Technical Report
Title Note Rept. of investigations/1994.
NTIS Issue Number 199506
Measuring the Sound Power Level of Percussion Drills.
Measuring the Sound Power Level of Percussion Drills.
PB95147526

  • Rock drilling
  • Percussive drills
  • Sound pressure
  • Noise pollution
  • Acoustic measurement
  • Noise reduction
  • Underground mining
  • Sound intensity
  • Coal mining
  • Occupational safety
  • Bureau of Mines
  • 48A - Mineral Industries
  • 68B - Noise Pollution & Control
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