CLASSIFICATION OF ROCK FOR ENGINEERING PURPOSES

ALTHOUGH A NUMBER OF CLASSIFICATIONS FOR BOTH INTACT ROCK AND ROCK MASSES HAVE BEEN PROPOSED, THESE CLASSIFICATIONS, IN GENERAL, DO NOT RELATE TO SPECIFIC ENGINEERING APPLICATIONS. THIS REPORT OUTLINES RESEARCH IN PROGRESS BY THE U.S. BUREAU OF MINES TO DEVELOP ROCK MASS CLASSIFICATIONS RELATED TO TWO GROUND SUPPORT PROBLEMS. THESE PROBLEMS INCLUDE CAVEABILITY OF GROUND (AS IN A BLOCK CAVING MINE), AND ATTAINABLE UNSUPPORTED SPANS (AS IN AN OPEN SLOPE MINE). THE MECHANICAL AND GEOLOGICAL PROPERTY DATA USED IN THESE CLASSIFICATIONS ARE OBTAINED FROM CORES TAKEN FROM OPERATING MINES. TECHNIQUES FOR QUANTIFYING GEOLOGICAL FEATURES IN THE CORES ARE BRIEFLY DESCRIBED. /AUTHOR/

Language

  • English

Media Info

  • Features: Photos; References; Tables;
  • Pagination: p. 435-41
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00230455
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Nov 14 1973 12:00AM