Comparative Study of Selected Rock Stress and Property Measurement Instruments

Abstract

The report presents information on selected stress and modulus gages designed to measure the deformation of a small hole drilled into rock, and the applied pressure in the case of modulus gages. The gages selected were the USBM Borehole Deformation Gage, the CSIR 'Doorstopper', and the Photoelastic Stressmeter (Glass Plug) to measure stresses; the Goodman Jack, the USBM cylindrical Pressure Cell, the Menard Pressuremeter and the Borehole Dilatometer (Rocha) to measure rock modulus values. The information was gathered, initially by questionnaire and in greater depth by personal communication, from engineers who have used the instruments in the field. Information is provided on the use, cost, time, and other factors relating to the selected gages. The information is oriented towards comparative selection of gages to be used in specific applications. Information on problems likely to be encountered in the field is given.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1972
Accession Number
AD0750724

Entities

People

  • John R. Hoskins

Organizations

  • University of Idaho

Tags

Communities of Interest

  • Air Platforms
  • Engineered Resilient Systems
  • Ground and Sea Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Accuracy
  • Construction
  • Control Panels
  • Creep
  • Elastic Properties
  • Engineers
  • Measurement
  • Measuring Instruments
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Physical Properties
  • Pressure Gages
  • Strain Gages
  • Stress Strain Relations
  • Test And Evaluation
  • Two Dimensional

Readers

  • Business Analytics
  • Geotechnical Engineering.
  • Mechanical Engineering/Mechanics of Materials.