Laboratory Noise Testing of a Jumbo Drill

Details

• Personal Author:
  Alcorn L ; Kim B ; Mechling J ; Peterson, Jeffrey S.
• Description:
  There is a high prevalence of hazardous noise exposures among the nation's mining workforce, with 76% of miners overexposed to noise and 27% suffering from noise-induced hearing loss. Field time-motion and dosimeter studies have revealed that jumbo drill operators are frequently overexposed to noise and may be subjected to noise levels exceeding 100 dB(A). To address these problems, NIOSH initiated a research project seeking to develop noise controls to reduce the sound level at the jumbo drill operator's location and thus reduce the operator's noise exposure. Key to the success of this effort is determining the primary noise sources on a jumbo drill. Earlier project research included noise source identification testing using beamforming techniques in the field. This paper discusses similar beamforming testing conducted on a single-boom jumbo drill in an acoustical laboratory environment. This testing revealed primary noises along the drill string and also at the drifter. Additional testing documented the effect of drill bit diameter on the sound power emitted by the jumbo drill during drilling. [Description provided by NIOSH]
• Subjects:
  Construction Industry Construction Materials Environmental Monitoring Noise Noise, Occupational Occupational Health Power Plants Safety Wood
• Keywords:
  Construction Equipment Construction Materials Cutting Tools Equipment Testing Exposure-assessment Exposure-levels Machine-tools Measurement-equipment Noise-levels Noise-measurement Noise Control Noise Sources Performance Tests Power-generation Power Tools Pressure-testing Sound Sound Attenuation Woodworking Woodworking Equipment

  More +
• Series:
  Mining Publications
• ISSN:
  0736-2935
• Publisher:
  The Institute of Noise Control Engineering of the USA (INCE/USA)
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  District of Columbia ; OSHA Region 1 ; OSHA Region 3 ; Pennsylvania ; Rhode Island
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  452-459
• NIOSHTIC Number:
  nn:20049233
• Citation:
  NOISE-CON 2016. The 31st Conference of the Institute of Noise Control Engineering, June 13-15, 2016, Providence, Rhode Island. Washington, DC: The Institute of Noise Control Engineering of the USA, 2016 Jun; :452-459
• Contact Point Address:
  Jeffrey Shawn Peterson, National Institute for Occupational Safety and Health Pittsburgh Mining Research Division 626 Cochran's Mill Road Pittsburgh, Pennsylvania 15236, USA
• Email:
  JPeterson@cdc.gov
• Federal Fiscal Year:
  2016
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  NOISE-CON 2016. The 31st Conference of the Institute of Noise Control Engineering, June 13-15, 2016, Providence, Rhode Island
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d8f3080af5db1aaed61f350c1acb0992b22d96639f26112aa3805eeed23fc05cfe01ceabd71ad96a7603c40d99019547836ed8ed121c3a4d1834550b6a394005
• Download URL:
  https://stacks.cdc.gov/view/cdc/228340/cdc_228340_DS1.pdf
• File Type:
  [PDF - 540.18 KB ]