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Noise control of diesel-powered underground mining machines, 1979.

Authors
Daniel-JH; Burks-JA; Bartholomae-RC; Madden-R; Ungar-EE
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 8837, 1981 Jan; :1-29
NIOSHTIC No.
10001978
Abstract
This Bureau of Mines report presents results of a survey of underground mining equipment and of two demonstration programs showing the feasibility of quieting a load-haul-dump (lhd) machine and a personnel vehicle. Typical noise levels are presented for the major machine types used in underground mines, along with estimates of the noise overexposure of miners who operate or work near these machines. General principles of noise control are explained, and the application of these principles is illustrated in the description of modifications made to the lhd machine and the personnel vehicle. The noise control package installed on the personnel vehicle lowered its noise level by 14 dba after 4 months of operation, and inspection of the lhd machine after 2 1/2 years of operation with the modifications showed its noise level 7 dba lower than that of the unmodified machine. Noise dosimeter measurements indicated that both machines were in compliance with federal noise regulations for a typical shift.
Keywords
Underground mining; Mining equipment; Noise reduction; Materials handling equipment; Noise pollution; Acoustic absorption; Human factors engineering; Physiological effects; Noise levels
Publication Date
19810101
Document Type
IH; Information Circular
Fiscal Year
1981
NTIS Accession No.
PB81-198020
NTIS Price
Identifying No.
IC-8837
NIOSH Division
PRC
Source Name
Noise control of diesel-powered underground mining machines, 1979
State
PA
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