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ASTM D4554

2012 Edition, August 1, 2012

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Standard Test Method for In Situ Determination of Direct Shear Strength of Rock Discontinuities

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Product Details:

  • Revision: 2012 Edition, August 1, 2012
  • Published Date: August 1, 2012
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 9
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This test method covers the measurement of peak and residual direct shear strength in a drained condition of in situ rock discontinuities as a function of stress normal to the sheared plane. This sheared plane is usually a significant discontinuity that may or may not be filled with gouge or soil-like material.

The measured shear properties are affected by scale factors. The severity of the effect of these factors must be assessed and applied to the specific problems on an individual basis.

The values stated in SI units are to be regarded as the standard. No other units of measurements are included in this standard.

All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

*A Summary of Changes section appears at the end of this standard