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An Alternative To A Manual Torque Check On Roof Bolts
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Citation (Style = APA)
Cybulski, Joseph A. (1990). An Alternative To A Manual Torque Check On Roof Bolts. Tenth International Conference on Ground Control in Mining Proceedings (ICGCM) 10th
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Cybulski, Joseph A. (1990). An Alternative To A Manual Torque Check On Roof Bolts. Tenth International Conference on Ground Control in Mining Proceedings (ICGCM) 10th
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: International Conference on Ground Control in Mining
Pages: 5
Publication Date:
Jan 1, 1990
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Abstract
Abstract
| In response to the mining of reserves with increasingly adverse round conditions and the roof support recommendations of current rock mechanics theories, roof support systems have continued to improve. A few of these newer bolting systems. while giving improved performance, require a new method to check bolt installation. Previous1 , a torque wrench had been the sole means to check the installed torque of a roof bolt. However, due to the characteristics of soma of the newer bolting systems which can prevent a reliable manual torque check and a recent change in the federal roof control regulations, an alternative method to a manual torque check is gaining acceptance. This alternative method improves monitoring the hydraulic pressure of the roof bolting machine torque circuit and provides a safe, reliable and quick wav to check bolt installation in those instance when an accurate manual torque check cannot be made. |
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