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Base de datos CISDOC

ID (ISN) del documento112147
Número CIS 11-0860
ISSN - Título de la serie 1545-9624 - Journal of Occupational and Environmental Hygiene
Año 2010
Número de serie
Autor(es) Sweeney D.D., Slagley J.M., Smith D.A.
Título Insertion loss of noise barriers on an aboveground, full-scale model longwall coal mining shearer
Información bibliográfica Jan. 2010, Vol.7, No.1, p.272-279. Illus. 17 ref.
Acceso Internet Insertion_loss.pdf [en inglés]
Resumen The mining industry struggles with hazardous noise and dust exposures in underground mining. Specifically, longwall coal mine shearer operators are routinely exposed to noise levels at 151% of the allowable daily dose, and approximately 20% exceed regulatory dust levels. In this study, a partial barrier was mounted on the full-scale mock shearer at the NIOSH Pittsburgh Research Laboratory. A simulated, full-scale, coal mine longwall shearer operation was employed to test the feasibility of utilizing a barrier to separate the shearer operator from the direct path of the noise and dust source during mining operations. In this model, noise levels at the operators' positions were reduced by 2.6 to 8.2 A-weighted decibels (dBA) from the application of the test barriers. Estimated insertion loss underground was 1.7 to 7.3 dBA. The barrier should now be tested in an underground mining operation to determine if it can reduce shearer operators' noise exposure to below regulatory limits.
Descriptores (primarios) explotación minera en el fondo; explotación por cortes largos; tabiques antiruido; mineria del carbón
Descriptores (secundarios) Estados Unidos; medida del nivel de ruido; investigación en mina experimental; instituciones publicas de prevencion
Tipo de documento D - Artículos periódicos
Tema(s) Minas y canteras
Ruido, audición, vibraciones
Broad subject area(s) Riesgos físicos
Navegación por categoria(s) Noise
Mining and quarrying