A RING SWELL TEST FOR MEASURING SWELLING AND SHRINKAGE CHARACTERISTICS OF ROCK

The "ring swell test" described in this paper was developed in an attempt to provide realistic data for the analysis of rock squeeze pressures on tunnel linings and on the retaining walls of open cut excavations. It allows one to measure the three dimensional swelling and stress-relief strains and pressures that are developed by a cylindrical rock specimen under conditions of variable axi-symmetric radial confinement and axial surcharge. The test specimen can be subjected to controlled drying and wetting to investigate shrinkage and swelling as well as creep. A simple sulphur encapsulation technique allows one to measure dimensional changes from soon after recovery of rock core from the ground, and avoids deterioration of fragile samples. (Author/TRRL)

  • Availability:
  • Corporate Authors:

    Pergamon Press, Incorporated

    Headington Hill Hall
    Oxford OX30BW,    
  • Authors:
    • FRANKLIN, J A
  • Publication Date: 1984-6

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Filing Info

  • Accession Number: 00388959
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Nov 30 1984 12:00AM