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Quantitative estimation of joint roughness coefficient using statistical parameters
International Journal of Rock Mechanics and Minings Sciences, 2015 where τ is the peak shear strength of the rock joint, σ is the normal stress, JRC is the joint roughness coefficient, JCS is the strength of joint wall, φb is the basic friction angle. Over the last half century, researchers have kept working on techniques for estimating JRC of rock joints for or from this model.
Yanrong Li, Yongbo Zhang
exaly +2 more sources
Advances in Civil Engineering, 2019 Joint roughness coefficient (JRC) is a major factor that affects the mechanical properties of rock joints. Statistical methods that are used to calculate the JRC increasingly depend on a sampling interval (Δx). The variation rules of fitting parameters a,
Man Huang +4 more
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A prediction model of the joint roughness coefficient based on Gaussian process regression
地质科技通报Objective Estimating the joint roughness coefficient (JRC) is essential for evaluating the mechanical properties of a rock mass. Due to the limitation of a single statistical parameter for characterizing morphology, JRC values estimation by a single ...
Kexin ZHENG +4 more
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A Novel Discontinuity Roughness Parameter and Its Correlation with Joint Roughness Coefficients [PDF]
Energies, 2021 Joint roughness determination is a fundamental issue in many areas of rock engineering, because joint roughness has significant influences on mechanical properties and deformation behavior of rock masses. Available models suggested in the literature neglected combined effects of shear direction, scale of rock discontinuities, inclination angle, and ...
Huizhen Zhang +4 more
openaire +2 more sources
Applied Sciences, 2023 The influence of joint roughness and inclination on the dynamic mechanical properties of rocks is a prominent research area. In order to investigate the effects of joint roughness and inclination on the dynamic mechanical properties of jointed rocks ...
Pu Yuan +3 more
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Study on the Accurate Measurement and Quantitative Evaluation Methods of Aggregate Surface Roughness
Advances in Materials Science and Engineering, 2021 In this work, to quantitatively analyze the roughness of the surfaces of road aggregates, the contact measurement technique and contactless scanning technique were, respectively, used to capture the coordinate data of point clouds on the aggregate ...
Luoke Li, Meng Guo, Cong Zeng
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Effect of Joint Roughness and Infill Thickness on Shear Characteristics of Rock Mass
Advances in Civil Engineering, 2022 The joint planes in fractured rock mass will reduce the tensile strength and shear strength of rock mass, which has a decisive influence on the deformation and failure mode of engineering rock mass.
Xuezhen Wu +4 more
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A New Method for Determination of Joint Roughness Coefficient of Rock Joints [PDF]
Mathematical Problems in Engineering, 2015 The joint roughness coefficient (JRC) of rock joints has the characteristic of scale effect. JRC measured on small-size exposed rock joints should be evaluated by JRC scale effect in order to obtain the JRC of actual-scale rock joints, since field rock joints are hardly fully exposed or well saved.
Shigui Du +4 more
openaire +1 more source
Advances in Civil Engineering, 2021 The 10 standard roughness joint profiles provided a visual comparison to get the joint roughness coefficient (JRC) of rock joint surface, but the accuracy of this method is influenced by human factors.
Zhiqiang Zhang +3 more
doaj +1 more source
The temperature-dependent shear strength of ice-filled joints in rock mass considering the effect of joint roughness, opening and shear rates [PDF]
The Cryosphere, 2023 Global warming causes many rockfall activities in alpine mountains, especially when ice-filled joints in the rock mass become thawed. The warming and thawing of frozen soils and intact rocks have been widely studied in the past several decades; however ...
S. Huang +4 more
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