The Effects of Fluids and Cyclic Loading on the Elastic Moduli of Rocks

Abstract

Simultaneous volume and acoustic velocity measurements have been made to determine the elastic moduli of Salem limestone, Berea sandstone, and Westerly granite. The purpose was to examine differences and similarities between the two measurements. The effects of cyclic loading and water filling were also examined. Significant differences in bulk modulus are observed on pressure release and during crush up. While the volume value of bulk modulus decreases sharply at crush up only a slight knee or depression occurs in the velocity values. Several possible applications of these results to the sponsor's Hard Rock Excavation program are given.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1972
Accession Number
AD0751623

Entities

People

  • Phillip N. La Mori

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Velocity
  • Acoustic Waves
  • Bulk Modulus
  • Diameters
  • Elastic Properties
  • Excavation
  • Hydrostatic Pressure
  • Identification Systems
  • Materials Science
  • Measurement
  • Mechanics
  • Modulus Of Elasticity
  • Pore Pressure
  • Porosity
  • Porous Materials
  • Secondary Waves
  • Specific Volume

Readers

  • Fluid Dynamics.
  • Geotechnical Engineering.
  • Reinforced Composite Materials