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Results 61 - 70 of 85
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1/1/2003 - Conference papersComputer human modeling was used to examine machine appendage speed. The objective was to determine the impact of roof bolter machine appendage speed on the likelihood of the operator coming in contact with the appendage.
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Roof screening has been found to be very effective in controlling the fall of small rocks from the immediate roof surface. Data is presented from two mines that show a dramatic reduction in roof skin injuries when screening is used.
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7/1/2002 - Reports of InvestigationsThe process of drilling and bolting the roof is currently one of the most dangerous jobs in underground mining, resulting in about 1,000 accidents with injuries each year in the United States. Researchers from the Spokane Research Laboratory of the Nat...
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2/1/2002 - Conference papersThis paper examines methods for limiting occupational silica exposures for roof bolting personnel in underground coal mining. It also evaluates a metal rake, a flexible insert, and a rigid insert for cleaning the roof bolter dust collector box.
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2/1/2002 - Conference papersThis report discusses a cooperative research study performed on a surface drill retrofitted with a new pressurization and filtration system. Respirable dust concentrations were substantially reduced from 0.64 mg/m3 during pre-testing to 0.05 mg/m3 duri...
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9/1/2001 - Peer reviewed journal articlesThe objectives of this work are to 1) evaluate the performance of the P7 method on field samples of low quartz mass loadings, 2) evaluate the magnitude of dust mass spatial variability within an enclosed cab environment, and 3) estimate the subsequent p...
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7/1/2001 - Peer reviewed journal articlesA number of ignition incidents involving mining and farm equipment have illustrated the surprising danger of drilling, cutting, or otherwise penetrating sealed compartments or frames that are filled with metal scrap for ballast.
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6/1/2001 - Conference papersThis paper presents the results of a study to verify and validate a computer model that represents and analyzes motions and hazardous events in a simulated three-dimensional workplace. The purpose of the computer model is to support research that is in...
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Laboratory Evaluation of a Canopy Air Curtain for Controlling Occupational Exposures of Roof Bolters6/1/2001 - Conference papersTesting at NIOSH assessed the effectiveness of a canopy air curtain for controlling occupational exposures to respirable silica and coal dusts.
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8/1/2000 - Conference papersOperator cabs on a front-end loader and a rotary rock drill were retrofitted with ceiling mounted heating/AC units and air filtration systems.
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Content source: National Institute for Occupational Safety and Health, Mining Program