Results 11 to 20 of about 458 (163)
A New Method to Estimate the Joint Roughness Coefficient by Back Calculation of Shear Strength
Advances in Civil Engineering, 2019 The joint roughness coefficient (JRC) is an important factor affecting the shear properties of rock joints, and its accurate estimation is a challenging task in rock engineering.
Jiu-yang Huan +3 more
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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 back-propagation neural network optimized by genetic algorithm for rock joint roughness evaluation
Journal of Rock Mechanics and Geotechnical EngineeringThe joint roughness coefficient (JRC) is a key parameter in the assessment of mechanical properties and the stability of rock masses. This paper presents a novel approach to JRC evaluation using a genetic algorithm-optimized backpropagation (GA-BP ...
Leibo Song +6 more
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Determination of Joint Surface Roughness Based on 3D Statistical Morphology Characteristic
Advances in Civil Engineering, 2021 Roughness significantly affects the shear behavior of rock joints, which are widely encountered in geotechnical engineering. Since the existing calculation methods on the joint roughness coefficient (JRC) fail to obtain a sufficiently accurate value of ...
Hang Lin +3 more
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Applied Sciences, 2021 The morphology of the joint surface is multi-scale, and it can be divided into first-order asperity (waviness) and second-order asperity (unevenness). At present, the joint roughness characterization formula considers only the morphology contribution of ...
Zhouhao Yuan +3 more
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Reviews on Advanced Materials Science, 2023 The roughness of the joint surface plays a significant role in evaluating the shear strength of rock. The waviness (first-order) and unevenness (second-order) of natural joints have different effects on the characterization of joint surface roughness. To
Hu Yunpeng +8 more
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Heterogeneity Measures for Analyzing the Scale Effect and Anisotropy of Joint Roughness
Journal of MathematicsJoint roughness of rock joints is one of the key factors influencing the mechanical properties of rock joints. The influence of joint roughness on the mechanical properties of rock mass is usually quantitatively characterized by joint roughness ...
Jibo Qin, Zhenhan Zhang, Jun Ye
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Journal of Rock Mechanics and Geotechnical EngineeringThe scale effect on shear strength of rock joints is well-documented. However, whether scale effects are negative, positive, or even exist or not is still controversial. Joint roughness significantly influences the shear strength of rock joints. Compared
Qing Lü +4 more
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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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Geomechanics and Geophysics for Geo-Energy and Geo-ResourcesRoughness ubiquitously prevails in rock joints and controls the shear behaviours, permeability and damage characteristics of rock joints. A plethora of investigations have focused on the description of joint roughness; however, a detailed method for ...
Feili Wang +3 more
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