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rock bolt

noun, Mining, Civil Engineering
a steel or fiberglass bolt inserted and anchored in a hole drilled in rock to prevent caving of the roof of a tunnel or subterranean chamber.
Origin of rock bolt
1955-60 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for rock bolt
  • In general, results indicate that tendon reinforcements are in better condition relative to rock bolt reinforcements.
  • The targets were screwed into reusable holes that had been drilled and tapped in rock bolt plates.
  • Stabilization would be accomplished with either rock bolt anchors or a localized cable net system.

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