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- Products and materials:
- Roof bolts
- Document types:
- Information Circulars
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10/1/2000 - Information CircularsThe proceedings provide information on several new technologies including guidelines for roof bolt length, pattern, and capacity; a new design method for longwall tailgate supports; and a technique for measuring loads developed within cable bolts.
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8/1/2006 - Information CircularsThis trainer's guide is designed as a reference manual. The purpose is to offer information and examples to skills trainers to assist them in structuring training for new operators of Walk-Thru roof bolting machines.
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Content source: National Institute for Occupational Safety and Health, Mining Program