THE USE OF STRESS-STRENGTH RELATIONSHIPS IN THE ASSESSMENT OF TUNNEL STABILITY

A method of predicting probable ground behaviour considering stress-strength relationships is presented. The influence of overburden pressure and rock mass strength which are implicitly used in calculating the Q value (Q-system of Barton et al. 1974) are explicitly considered in forecasting stability problems in tunnels. In particular, squeezing, spalling and loosening of the rock mass in tunnels constructed through the complex geological set-up of the Himalayas have been analysed. A new Q-system correlation which takes into account the dimension of an opening is suggested for evaluating support pressures in squeezing ground. (A)

  • Availability:
  • Corporate Authors:

    Elsevier

    The Boulevard, Langford Lane
    Kidlington, Oxford  United Kingdom  OX5 1GB
  • Authors:
    • Bhasin, R
    • Grimstad, E
  • Publication Date: 1996-1

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00723133
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Jul 26 1996 12:00AM