Analyses of materials-handling systems in underground low-coal mines.
Human engineering and human resources management in mining. Proceedings: Bureau of Mines Technology Transfer Seminar held at Pittsburgh, Pennsylvania on July 7-8, 1987; St. Louis, Missouri, July 15-16, 1987; and San Francisco, California, July 21-22, 1987. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9145, 1987 Jul; :13-20
Task analyses were conducted by the Bureau of Mines at four underground low seam coal mines to evaluate their supply-handling systems and for use in subsequent design of laboratory simulation experiments. Items were tracked (by videotaping) from delivery to the surface storage areas to their final destinations underground. Of particular interest were those tasks that required manual handling of supplies or equipment. Analysis of the videotapes revealed that the miners handled materials while stooped over a total of 37.8 pct of the time, 31.5 pct while on both knees, and 9.5 pct while kneeling on one knee. These working postures impose considerable stress on the lumbar spine and may be implicated in the high number of back injuries in this work population. This paper also discusses various mechanical-assist devices developed by the Bureau and successfully evaluated in the underground workplace. These devices can be used to minimize the manual effort and the corresponding risk of injury associated with handling supplies and equipment components in low-seam coal mines.
Mining-industry; Underground-mining; Coal-mining; Materials-handling; Manual-materials-handling; Mining-equipment; Ergonomics; Musculoskeletal-system-disorders; Injury-prevention; Back-injuries
IH; Conference/Symposia Proceedings
Human engineering and human resources management in mining. Proceedings: Bureau of Mines Technology Transfer Seminar held at Pittsburgh, Pennsylvania on July 7-8, 1987; St. Louis, Missouri, July 15-16, 1987; and San Francisco, California, July 21-22, 1987