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Results 71 - 80 of 91
7/1/1997 - Technology NewsThe analysis of Retreat Mining Pillar Stability (ARMPS) computer program was developed in 1995 and has been widely accepted by the mining community. A Windows version of ARMPS is now available. It features simplified data input, graphics, and an expande...
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
1/1/1997 - Peer reviewed journal articlesAn investigation of the hazards in and around ore passes in hard rock mines. Risk assessment methods, such as fault-tree analysis, have been employed to identify the most probable causes of ore-pass failures, define research priorities and analyze the f...
1/1/1997 - Conference papersRock masses in deep-level mines are subject to high stresses, which can result in unexpected failure of rock into mined-out openings. Personnel from two research centers of the former U.S. Bureau of Mines, Spokane and Twin Cities, investigated a rock b...
1/1/1996 - Conference papersReport on research analyzing single and multiple causes of surface haulage accidents.
1/1/1994 - NIOSH/USBM numbered publicationsThis paper examines safety concerns associated with deep-cut mining, using the U.S. Mine Safety and Health Administration accident database, interviews with mine workers and operators, and conversations with state, local, and union representatives.
1/1/1994 - NIOSH/USBM numbered publicationsThis paper provides statistical information on accidents, production, and employment at small U.S. underground coal mines.
2/1/1990 - Contract reportsThis supplement to the final report is a collection of interim and monthly reports and working memoranda prepared during the course of this program to document the progress, methods and results of the work.
1/1/1987 - Reports of InvestigationsGob holes are routinely used by the mining industry to vent methane from gobs and to prevent it from entering the mine ventilation system. In some cases, flows from gob holes are measured by centering an anemometer on the end of a discharge pipe. These ...
2/1/1982 - Contract reportsAn evaluation was made of one of several improved underground communication systems sponsored by the U.S. Bureau of Mines. The system was installed in a typical metal-nonmetal, room-and-pillar mine and utilized ultrahigh frequency repeaters connected to...