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Estimating joint roughness coefficients
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1979Eight parameters that have used used to characterize numerically the roughness of surfaces have been measured on the ten profiles presented by Barton and Choubey [1] as typifying different joint roughness coefficients. Values of two of these parameters, Z2 and SF, respectively, the root mean square and the mean square of the first derivative of the ...
R. Tse, D.M. Cruden
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Determination of Joint Roughness Coefficients Using Roughness Parameters
Rock Mechanics and Rock Engineering, 2014This study used precisely digitized standard roughness profiles to determine roughness parameters such as statistical and 2D discontinuity roughness, and fractal dimensions. Our methods were based on the relationship between the joint roughness coefficient (JRC) values and roughness parameters calculated using power law equations.
Hyun-Sic Jang +2 more
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Relationship between the Fractal Dimension and Joint Roughness Coefficient
Environmental & Engineering Geoscience, 1989An empirical relationship between the fractal dimension (D) and joint roughness coefficient (JRC) is described. The concepts of fractals and fractal dimension are introduced. A fractal dimension for joint and bedding planes is determined using elevation data measured along a line traversing these surfaces.
J. R. CARR, J. B. WARRINER
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Measurement of joint roughness coefficient by using profilograph and roughness ruler
Journal of Earth Science, 2009Joint roughness coefficient (JRC) is the key parameter for the empirical estimation of joint shear strength by using the JRC-JCS (joint wall compressive strength) model. Because JRC has such characteristics as nonuniformity, anisotropy, and unhomogeneity, directional statistical measurement of JRC is the precondition for ensuring the reliability of the
Shigui Du, Yunjin Hu, Xiaofei Hu
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Predicting Joint Roughness Coefficients Using Fractal Dimension of Rock Joint Profiles
Applied Mechanics and Materials, 2012The Joint Roughness Coefficients, JRC, is presented Barton and Choubey in 1977. A series of different rock joint profiles were reconstructed by means of the independent cut method (Voss, 1988) using the programs written by MATLAB language. The reconstructed joint profiles have different amplitude and roughness.
Hong Fa Xu +3 more
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Assessment of conventional methodologies for joint roughness coefficient determination
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1993A numerical description of rock joint toughness is necessary to model the pseudostatic and dynamic rock joint behavior. The commonly used measure of joint roughness in rock engineering practice is the joint roughness coefficient (JRC), proposed by Barton and adopted by the International Society for Rock Mechanics.
S.M. Hsiung +3 more
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A new approach for quantifying the two-dimensional joint roughness coefficient (JRC) of rock joints
Environmental Earth Sciences, 2021The joint roughness coefficient (JRC) is the key factor in predicting the peak shear strength of a rock joint. In this paper, we present a new approach for quantitatively calculating the JRC of two-dimensional rock joints. First, the two dimensionless indexes of cumulative relative relief amplitude (CRRA) and weighted average gradient (WAG) are defined
Yuan Wei +9 more
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Rock Mechanics and Rock Engineering, 2018
When translating digital roughness profiles of a closed rock joint along the shear direction, the overlapping translational areas can reasonably represent the main potential contact areas in shear tests. By translating Barton’s ten typical roughness profiles, a series of statistical parameters, including the overlapping areas (S*), overlapping number ...
Xige Liu +4 more
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When translating digital roughness profiles of a closed rock joint along the shear direction, the overlapping translational areas can reasonably represent the main potential contact areas in shear tests. By translating Barton’s ten typical roughness profiles, a series of statistical parameters, including the overlapping areas (S*), overlapping number ...
Xige Liu +4 more
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Alternative Method for Assessing the Roughness Coefficients of Rock Joints
Journal of Computing in Civil Engineering, 2016AbstractThe roughness of rock joints is a relevant factor considerably influencing the shear strength of rock masses, which is critical for the mechanical stability of large civil engineering structures. One of the geotechnical methods for determining the roughness coefficients of rock joints is on the basis of the visual comparison of the joint ...
Tomáš Ficker, Dalibor Martišek
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Correlation of joint roughness coefficient and permeability of a fracture
International Journal of Rock Mechanics and Mining Sciences, 2019Abstract This paper uses a new modeling approach to study fluid transport in an open fracture, which relies on data derived from scanned surfaces of fractures and considers surface variations and velocity Laplacians in two orthogonal directions and the bulk flow rotation.
S.M. Rezaei Niya, A.P.S. Selvadurai
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