Field test of an automated temporary roof support (ATRS) on a low- coal, single fixed-head roof bolting machine (squirmer).
Proceedings of the 14th Annual Institute on Coal Mining Health, Safety and Research, Blacksburg, Virginia, August 23-25, 1983. Karmis M, Patrick JL, Sutherland WH, Lucas JR, Faulkner G, eds., Blacksburg, VA: Virginia Polytechnic Institute and State University, 1983 Aug; :169-172
An economical, remotely operated (automated), temporary roof support (ATRS) has been developed by the Bureau of Mines for use on a single, fixed-head roof-bolting machine (squirmer) that operates in low coal seams (less than 42 inches thick). The ATRS eliminates the need for squirmer operators and helpers to go under unsupported roof to set or remove temporary support prior to or during the roof- bolting cycle--a task that annually accounts for approximately 20 pct of all roof fall fatalities. The ATRS can be adapted to any squirmer used in the U.S. low coal fields. A prototype ATRS was field tested at Imperial CollieryCompany's Mine No. 20 in Eskdale, West Virginia. The mine No. 20 amended roof-control plan, which requires the use of the Bureau's ATRS as temporary support during face bolting, has been approved by the Mine Safety and Health Administration (MSHA).
Mineral-processing; Mining-industry; Coal-mining; Longwall-mining; Underground-mining; Room-and-pillar-mining; Structural-analysis; Traumatic-injuries; Injury-prevention; Control-technology; Control-methods
Karmis-M; Patrick-JL; Sutherland-WH; Lucas-JR; Faulkner-G
Proceedings of the 14th Annual Institute on Coal Mining Health, Safety and Research, Blacksburg, Virginia, August 23-25, 1983