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ROCK-BOLT SAFETY SYSTEM AND METHOD FOR PROTECTING AGAINST A HAZARD OF ROCK-BOLT FAILURE
ROCK-BOLT SAFETY SYSTEM AND METHOD FOR PROTECTING AGAINST A HAZARD OF ROCK-BOLT FAILURE
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机译：防岩锚破坏危险的岩锚安全系统及方法
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摘要
The present invention provides a rock-bolt safety system (1) for protecting against a hazard of rock-bolt failure, especially the hazard posed by an end portion (E) of a rock-bolt (B) becoming a projectile, the safety device (1) comprising: a retainer member (2) for securing an end portion (E) of a rock-bolt (B) projecting from a rock-face (F), the retainer member (2) comprising a first attachment element (3) at a first region (4) thereof for connection to the projecting end portion (E) of the rock- bolt (B) and a second attachment element (5) at a second region (6) thereof that is spaced from or remote from the first region (4) for receiving and cooperating with a fastener (8) to secure the retainer member (2) to the rock-face (F). The retainer member (2) is typically elongate and comprised of a metal strip or strap, especially steel strap, and the safety device (1) preferably further comprises a fastener (8), such as an anchor bolt, for cooperation with the second attachment element (5) to secure the retainer member (2) to the rock-face (F). The present invention also provides an associated method of protecting against a hazard of rock-bolt failure.
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