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Consideration for Tubular Roof Bolt Design For a Rapid Face Bolting System
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Citation (Style = APA)
Schmidt LC, (1991). Consideration for Tubular Roof Bolt Design For a Rapid Face Bolting System.
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SpreadSheed (CSV)
Schmidt LC, (1991). Consideration for Tubular Roof Bolt Design For a Rapid Face Bolting System.
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: The Australasian Institute of Mining and Metallurgy
Pages: 8
Publication Date:
Jan 1, 1991
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Abstract
Abstract
| The method of supporting excavated roofs in underground coal mines by conventional roof bolting systems is challenged due to its shortcomings of being time-consuming and leading to possible unsafe installation. Though a few alternatives have been considered, the ultimate and most efficient bolting method has often been conceived as one using a self-drilling roof bolt, or a Rapid Face Bolting System (RFBS). The on-going Rapid Face Bolting Project undertaken by the University of Wollongong includes a special tubular bolt design.The tubular bolt designed for the RFBS is a "single-pass" bolt equipped with cutting tips used to drill a bolthole to accommodate the bolt. Different from that of the coring bit employed in geological site investigations, the principal design consideration for the tubular bolt is low cost associated with a small working life for the cutting tip. |
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