FRACTURE DEVELOPMENT AROUND TUNNELS . TUNNEL CONSTRUCTION 90. PAPERS PRESENTED AT THE TUNNEL CONSTRUCTION 90 CONFERENCE, ORGANIZED BY THE INSTITUTION OF MINING AND METALLURGY, LONDON, 3-4 APRIL, 1990

The paper examines the nature of fracture development around tunnels in rock conditions. Laboratory experiments have been carried out on a range of tunnel profiles using small-scale physical models. The in situ stress conditions have been varied. The magnitude of the horizontal component of stress has been used as a variable in relation to the vertical component (coverload). Observations have been made on the general characteristics of fracture pattern development for the different profiles tested. The results highlight that the nature of the stress field can considerably affect the character of the fractures which develop around the tunnel excavation. Tunnel profile has an important bearing on fracture pattern development.(A) For the covering abstract of the conference see IRRD 828810.

  • Availability:
  • Corporate Authors:

    Institution of Mining & Metallurgy

    44 Portland Place
    London W1N 4BR,   England 
  • Authors:
    • WHITTAKER, B N
    • Smith, S F
    • Chen, H
  • Publication Date: 1990

Language

  • English

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Filing Info

  • Accession Number: 00604005
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 1-870706-17-X
  • Files: ITRD, TRIS
  • Created Date: Feb 28 1991 12:00AM