Monitoring of rock movements provides input to understanding the behaviour of a rock mass and to an assessment of its stability. Observations of fracturing on a rock surface can provide useful information concerning behaviour at depth, and surficial monitoring is usually far less expensive than borehole instrumentation or other techniques for subsurface monitoring. The paper prepared by the Commission on Testing Methods (International Society for Rock Mechanics) describes four suggested methods for monitoring movement across discontinuities. They comprised using (1) glass plates, (2) pins and tape, (3) a portable mechanical dial gauge (4) a remote reading electrical jointmeter. These methods were a sampling of available techniques and were not intended to be recommended methods but expected to be used as a guide for adopting the method most applicable to a particular project. Typical applications of the methods include monitoring tension cracks behind slopes, monitoring cracks in concrete structures, pavements or tunnel linings and monitoring discontinuities in rock. (TRRL)

  • Availability:
  • Corporate Authors:

    Pergamon Press, Incorporated

    Headington Hill Hall
    Oxford OX30BW,    
  • Authors:
    • Dunnicliff, J
  • Publication Date: 1984-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00394402
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: May 31 1985 12:00AM