Modern Techniques for Determining Shear Strength
of Rock Joints

V. I. Rechitskii and S. A. Erlikhman

Gidroproekt

Received April 10, 1996

Abstract—Modern analytical techniques used in determining shear strength of joints in rock masses are dis-
cussed. Various methods for obtaining initial parameters are described, and necessary calculation formulas are
provided for both healed and unhealed joints. The influence of the scale factor on shear strength of joints is ana-
lyzed.