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Design and testing of a nondestructive friction bolt tester.

Authors
Martin-L; Goris-J; Roberts-L
Source
NIOSH 2004 Mar; :1-6
NIOSHTIC No.
20024629
Abstract
The Spokane Research Laboratory (SRL) of the National Institute for Occupational Safety and Health (NlOSH) and Thiessen Team USA, Spokane, WA, have developed a pull claw that can be attached to any accessible friction bolt ring to test the performance (i.e., load-carrying capacity) of bolts without the use of a pull collar. This would allow true random testing of friction bolts, which need to be evaluated to determine if they are still providing an adequate level of support months or years after installation. Such support is critical to maintaining safe working conditions for underground miners.
Keywords
Mining-industry; Mining-equipment; Underground-mining; Underground-miners; Ground-control; Control-technology; Engineering-controls; Safety-engineering
Publication Date
20040301
Document Type
Numbered Publication; Information Circular
Fiscal Year
2004
NTIS Accession No.
PB2004-104763
NTIS Price
A03
Identifying No.
(NIOSH) 2004-131; IC-9469
NIOSH Division
SRL
Source Name
National Institute for Occupational Safety and Health
State
WA
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