Definition of roof bolt in English:

roof bolt


  • A tensioned rod anchoring the roof of a working to the strata above.

    • ‘The protracted closure of the main pool for three months after the failure of a couple of roof bolts, and the lack of publicity for the training pool's availability, meant many customers simply ‘lost the habit’ of visiting their local pool.’
    • ‘She stated in her letter that the pool was closed for repair work for three months due to a couple of roof bolts.’