THE USE OF GROUND CLASSIFICATIONS SYSTEMS FOR PAYMENT PURPOSES IN ROCK TUNNELLING. LARGE ROCK CAVERNS - PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM, HELSINKI, FINLAND, 25-28 AUGUST 1986. VOLUME 1

This paper discusses logical steps in developing an appropriate form of contract for making fair payment according to geological conditions encountered in underground construction works. Emphasis is given to various aspects of good contract practice. Several examples of contract arrangements that have made use of simple rock classification systems for payment of tunnelling variables are presented, and their merits and defects discussed. A series of axioms are presented as a guide for designing such systems according to the "local" geological conditions. Such systems can be advantageously employed to make payment according to either or both temporary support conditions and excavation characteristics of rock masses. A system suitable for making payment for temporary support conditions in Hong Kong's massive granites and volcanic tuffs is presented. Recommendations are made to assist with the implementation of the system; for dealing with variations in quantities; monitoring conditions during construction; and on ways of reaching agreement on site. For the covering abstract of the symposium see IRRD 810647. (Author/TRRL)

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  • Corporate Authors:

    Pergamon Press, Incorporated

    Headington Hill Hall
    Oxford OX30BW,    
  • Authors:
    • MCFEAT-SMITH, I
  • Publication Date: 1987

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Filing Info

  • Accession Number: 00476289
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-08-034078-4
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1988 12:00AM