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Less sound underground: reducing roof bolting machine drilling noise.

Authors
Lowe-MJ; Peterson-JS; Yantek-DS; Alcorn-LA; Michael-R
Source
NOISE-CON 2010: Proceedings of the 2010 National Conference on Noise Control Engineering and 159th Meeting of the Acoustical Society of America, Baltimore, Maryland, April 19-21, 2010. Burroughs CB; Maling G; eds., Indianapolis, IN: Institute of Noise Control Engineering of the USA, 2010 Apr; :1-6
NIOSHTIC No.
20037503
Abstract
National Institute for Occupational Safety and Health (NIOSH) researchers strive to reduce noise-induced hearing loss for coal miners. The highest occurrence of hazardous noise exposure in the United States is within the mining industry, where 24% of miners have a reported hearing loss as a result. To find out the causes, NIOSH reviewed surveillance data from the Department of Labor Mine Safety and Health Administration (MSHA) on noise exposure in the mining industry. This study revealed which machine operators exceed 100% noise dose per the MSHA Permissible Exposure Level (PEL) - the noise limit a mine worker can be exposed to for their shift. To reduce noise overexposure for miners, researchers have developed noise controls that reduce the sound at the operator's position. For one machine in particular, a roof bolting machine (RBM), NIOSH partnered with Corry Rubber Corporation and Kennametal, Inc. to develop a suite of noise controls. This article presents the most significant findings from that research. A detailed report on the noise control suite is listed in the reference section. The control suite reduces sound levels at the operator's ear by over 77%. This is significant because an RBM operator is the second-most likely of all underground coal mining equipment operators to be overexposed to noise.
Keywords
Miners; Mining-industry; Underground-miners; Underground-mining; Noise-induced-hearing-loss; Coal-miners; Coal-mining; Surveillance-programs; Noise-exposure; Machine-operators; Exposure-limits; Noise-control; Hearing-conservation; Equipment-operators; Noise-protection; Noise-sources; Engineering-controls; Machine-tools
Contact
M. Jenae Lowe, National Institute for Occupational Safety and Health, Office of Mine Safety and Health Research, PO Box 18070, 626 Cochrans Mill Road, Pittsburgh, PA 15236
Publication Date
20100419
Document Type
Conference/Symposia Proceedings; Lay Publication
Email Address
MLowe@cdc.gov
Editors
Burroughs-CB; Maling-G
Fiscal Year
2010
NTIS Accession No.
NTIS Price
NIOSH Division
OMSHR
Priority Area
Mining
Source Name
NOISE-CON 2010: Proceedings of the 2010 National Conference on Noise Control Engineering and 159th Meeting of the Acoustical Society of America, Baltimore, Maryland, April 19-21, 2010
State
PA; MD; IN
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