Results 71 to 80 of about 458 (163)

Correlating Textural Parameters with Joint Roughness for Himalayan Schist and Gneissic rocks

, 2023
The shear strength characteristics of jointed rock masses are interrelated to the roughness of joint surfaces. These joint surfaces are characterized by mineral grains and their textural arrangements such as orientation, size, shape, degree of grain ...
Dwivedi, R. D., Kundu, Jagadish, Nath, Som, Verma,, H. K., Singh,, Ashok K., Rai, N.   +5 more
core  

Shear Behavior and Shear‐Flow Coupling Mechanisms of Red‐Clay‐Infilled Joints Under High Water Pressure

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Rock joints are considered as a discontinuity between two continuous media. The presence of infilled joints influences the mechanical and hydraulic properties of joint rock. Understanding these properties is critical for assessing underground excavation safety, slope stability, and water inrush risk.
Qingzhao Zhang, Zhe Wang, Ying Chen, Songbo Yu, Chenkang Liu, Zhenming Shi, Chao Pan   +6 more
wiley   +1 more source

Symbolic Regression for the Determination of Joint Roughness Coefficient

Mathematical and Computational Applications
In this study, a novel symbolic regression-based empirical equation has been developed to compute the joint roughness coefficient (JRC) value based on the statistical parameters of rock joints.
Yuyang Zhao, Hongbo Zhao
doaj   +1 more source

Nonlinear shear behavior of rock joints using a linearized implementation of the Barton–Bandis model

Journal of Rock Mechanics and Geotechnical Engineering, 2017
Experiments on rock joint behaviors have shown that joint surface roughness is mobilized under shearing, inducing dilation and resulting in nonlinear joint shear strength and shear stress vs. shear displacement behaviors.
Simon Heru Prassetyo, Marte Gutierrez, Nick Barton   +2 more
doaj   +1 more source

A Fractal Topology-Based Method for Joint Roughness Coefficient Calculation and Its Application to Coal Rock Surfaces

Modelling
The accurate evaluation of the Joint Roughness Coefficient (JRC) is crucial for rock mechanics engineering. Existing JRC prediction models based on a single fractal parameter often face limitations in physical consistency and predictive accuracy.
Rui Wang, Jiabin Dong, Wenhao Dong
doaj   +1 more source

Numerical Simulation of Shear Behavior and Permeability Evolution of Rock Joints with Variable Roughness and Infilling Thickness

Geofluids, 2018
The mechanical properties and permeability evolution of sand-infilled rock joints during the shear process is an important issue in rock engineering, such as it pertains to hydraulic fractures filled with proppant.
Jingyi Cheng, Hongwei Zhang, Zhijun Wan
doaj   +1 more source

Failure behaviour and crack propagation mechanism of non-persistent rough joints under direct shear: Insights from FEM–CZM method

KSCE Journal of Civil Engineering
Joint roughness and aperture critically influence the shear failure and crack propagation of non-persistent joints, affecting rock mass strength and stability.
Changsheng Wang, Xin Sun, Tingfang Liu, Shubo Zhang   +3 more
doaj   +1 more source

Experimental studies of scale effects on shear strength, and deformation of rock joints [PDF]

, 1980
The effect of scale on shear strength is studied by performing direct shear tests on different sized samples of large joints. A rubber moulding system is used to obtain impressions of the roughness from a variety of natural joint surfaces.
Bandis, Stavros
core  

Investigating the Mechanical and Failure Evolution of Saw-Tooth Jointed Rock Materials: A Numerical Study Under Uniaxial Compression

Applied Sciences
Joint roughness coefficient (JRC) and inclination exert a decisive influence on the stability and safety of rock mass engineering. Simulations of uniaxial compression were conducted on saw-tooth-shaped joint specimens using a calibrated particle flow ...
Yunda Dong, Pu Yuan, Aobo Li, Changning Chen   +3 more
doaj   +1 more source

Evaluation of the Joint Roughness Coefficient using the Digital Image Correlation Method

, 2012
[[abstract]]The joint roughness coefficient (JRC) is used to estimate the influence of the rock joint roughness on the shear strength. The traditional methods to evaluate the JRC are stylus and laser profilometers.
Shih, M.H., 童士恒, Kuo, J.C.
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