ASTM D 4554 Standard Test Method for In Situ Determination of Direct Shear Strength of Rock Discontinuities

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ASTM D 4554 Document Information:

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

ASTM International

Publication Date:
Jan 10, 2002

Scope:

This test method covers the measurement of peak and residual direct shear strength of in situ rock discontinuities as a function of stress normal to the sheared plane. This sheared plane is usually a significant discontinuity which 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.

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.

Keywords:

discontinuities
in situ stress
loading tests
shear strength

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