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- Reports of Investigations
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Results 61 - 70 of 270
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8/1/1999 - Reports of InvestigationsNIOSH cooperated with Tecrete Industries Pty. Ltd. and BHP Australia Coal to evaluate the strength characteristics and air leakage of four seal and two stopping designs for use in underground coal mines.
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10/1/1998 - Reports of InvestigationsLaboratory testing and results are presented where five bituminous coals were prepared and processed through a double roll crusher located in a low-velocity wind tunnel. The results indicate that a combination of several factors are associated with air...
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10/1/1998 - Reports of InvestigationsOne of the applications of enabling technology for remote-controlled mining to protect miners is the use of a guidance system on the continuous haulage equipment so that it follows the continuous mining machine that extracts the coal.
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9/1/1998 - Reports of InvestigationsThe behavior of wire ropes used in hoisting is not well understood. In an effort to improve this understanding, the structure of round-strand wire ropes was analyzed. This report provides a generalized mathematical model that completely describes the g...
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5/1/1998 - Reports of InvestigationsFull-scale testing and results are described for an automated system that continuously monitors the accumulation of coal dust in mine entries.
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11/1/1997 - Reports of InvestigationsThe results of laboratory, field, and open pit accuracy and performance testing of the Honeywell Ring Laser Gyro Inertial Navigation System, a navigation system designed to provide the heading and location of a remote controlled miner, are presented.
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5/1/1997 - Reports of InvestigationsThe article discusses the applicability of computerized signal analysis techniques to identify fault currents existing on coal mine direct-current trolley systems
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5/1/1997 - Reports of InvestigationsAs the use of deep-cut mining increases, there is expected to be a greater demand for methane measurement devices capable of scanning working faces at depths in excess of 10 m to alert mine personnel of hazardous concentrations of methane and to satisfy...
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5/1/1997 - Reports of InvestigationsA report evaluating a wireless signaling and warning system for underground mines applicable to both coal and non-coal mines. A TeleMagnetic Signalling Systems wireless ultra-low-frequency electromagnetic signaling system was installed and tested.
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2/1/1997 - Reports of InvestigationsA Report of Investigations detailing research aimed at preventing injuries and fatalities related to vertical movement of personnel and materials in mine shafts and ore passes.
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Content source: National Institute for Occupational Safety and Health, Mining Program