Analysis of pile driver exhaust and impact noise

Details

• Personal Author:
  Hayden C ; Zechmann, Edward L.
• Description:
  In July 2008, NIOSH accomplished a preliminary noise survey focused on gathering impulsive noise data from pile drivers. The purpose of the noise survey was to better understand the noise characteristics of pile drivers. NIOSH gathered time record data of H-beam piles being driven into hard rock. This data was used to characterize the frequency content of the major impulsive events (impact and exhaust cycles). Knowing the frequency content is necessary to apply existing or develop new noise controls, since many noise controls are frequency dependent. Gathering the frequency content of a pile driver's impulsive noise signal is typically difficult using off-the-shelf measurement and analysis equipment and software. Reliable time record data is necessary to confidently extract the frequency content from the signal. NIOSH has developed an Impulsive Noise Meter laptop program to properly gather and analyze these impulsive signals. By analyzing the third octave band peak levels of each impact and exhaust cycle of the pile driver operation, the frequency dependence was determined. Results of this analysis showed the frequency content varied as the pile was driven further into the ground. This implies that broad spectrum noise controls are necessary to control those noise emissions. [Description provided by NIOSH]
• Subjects:
  Noise Noise, Occupational Occupational Health Safety Software Surveys And Questionnaires
• Keywords:
  Analytical-instruments Computer-models Computer-software Hard-rock-mines Health-surveys Impulse-noise Noise-analysis Noise-control Noise-exposure Noise-frequencies Noise-measurement Signal-devices

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• ISSN:
  0001-4966
• Document Type:
  Text
• Genre:
  Abstract or Summary
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  125
• Issue:
  4
• NIOSHTIC Number:
  nn:20038956
• Citation:
  J Acoust Soc Am 2009 Apr; 125(4)(Pt 2):2744
• Contact Point Address:
  Edward Zechmann, CDC/NIOSH, 4676 Columbia Pkwy., C-27, Cincinnati, OH 45226
• Federal Fiscal Year:
  2009
• Peer Reviewed:
  False
• Part Number:
  2
• Source Full Name:
  Journal of the Acoustical Society of America
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:949a1578716d3fe91c2b28d84bbf2173e92c65ceac424bc60b30ba1ce48219d59203f9b10cf42403af171edc4bf4b898c9a0bebf13f7bf1d454c6433bbd5c422
• Download URL:
  https://stacks.cdc.gov/view/cdc/192468/cdc_192468_DS1.pdf
• File Type:
  [PDF - 32.06 KB ]