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Development of noise control technology for jumbo drills.
Dutta PK; Patterson WN
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, OFR 21-86, 1985 May; :1-67
This report describes the design, development, manufacture, and incorporation of noise control features on a jumbo drill and the results of successful tests of this drill in surface and underground mines. The noise-reducing features developed under this program are applicable to future designs of jumbo drills that can be cost effectively manufactured and have the potential to reduce noise levels at the operator's position from 115-120 dba to 95 dba or less without a reduction of currently attainable drilling rates.
Drills; Noise reduction; Underground mining
CP; Final Contract Report
NTIS Accession No.
OFR 21-86; Contract-H0395025
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, OFR 21-86
Creare Products, Inc., Lebanon, New Hampshire
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division