An Investigation of Discontinuity Roughness Scale Dependency Using High-Resolution Surface Measurements

By Bryan S. A. Tatone, Giovanni Grasselli. Rock Mechanics and Rock Engineering, 2013

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Estimation of the joint roughness coefficient (JRC) of rock joints by vector similarity measures (2017, methodology): “However, to date, there are no widely adopted methods or suggested guidelines to determine the reasonable resolution for the measurement of discontinuity roughness (Tatone and Grasselli 2013).”
New Peak Shear Strength Criterion of Rock Joints Based on Quantified Surface Description (2014, methodology): “4 between 0 and h max; the area under the curve was given by Tatone and Grasselli (2009, 2012) as: Zh max 0 A0 h max h h max C dh ¼ A0 h max C þ 1 1 h h max Cþ1 h max 0 ¼ A0 h max C þ 1 ð5Þ where the h max C þ 1ð Þ characterizes the mean dip angle of the surface in the shear direction and is…”
A new method estimating the 2D Joint Roughness Coefficient for discontinuity surfaces in rock masses (2014, background): “Tatone and Grasselli [28,29] proposed a directional roughness parameter to improve a roughness evaluation methodology for 2D roughness profiles and suggested a formula for JRC, which is based on the cumulative distribution of the inclination of the line segments forming a profile.”