Rock Classification and Rock Property Listing

Abstract

The Bureau of Mines conducted a project for the Advanced Research Projects Agency (ARPA) Rock Mechanics and Rapid Excavation program to investigate rock classification as one means to improve rapid excavation technology. A standard rock suite was established, tested for standard properties, and distributed to contractors on request in the form of 1 cubic foot blocks. An extensive listing of ten physical-mechanical rock properties was compiled from Bureau and outside literature sources and is being presented in a Bureau of Mines Information Circular. A new technique for direct laboratory measurement of rock fracture energy was established. The requirements that must be met to build and to use a comprehensive rock classification system for predicting rapid excavation advance rate are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1973
Accession Number
AD0766429

Entities

People

  • Warren W. Krech

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Contractors
  • Data Acquisition
  • Downtime
  • Drilling
  • Engineering
  • Engineers
  • Ground Support
  • Hardness
  • Laboratory Tests
  • Mechanical Properties
  • Mechanics
  • Observation
  • Rock Mechanics
  • Tensile Strength
  • Test And Evaluation
  • Test Methods

Readers

  • Geotechnical Engineering.
  • Systems Analysis and Design