This article presents replies by the author to an earlier critique of the author’s QTBM model. The author disputes many of the comments made in the critique, acknowledges some of the limitations of the QTBM prognosis model, as well as explaining some planned improvements. Issues addressed include block size, inter-block shear strength, active stresses, strength and thrust of cutters, advance rate, utilization, gradient of deceleration, and open and double shield machines.

  • Availability:
  • Corporate Authors:

    Polygon Media Limited

    Tubs Hill House, London Road
    Sevenoaks, Kent TN13 1BY,   United Kingdom 
  • Authors:
    • Barton, N
  • Publication Date: 2005-7


  • English

Media Info

  • Features: Figures; References;
  • Pagination: pp 16-19
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01005452
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Oct 19 2005 12:44PM