Results 21 to 30 of about 12,048 (309)
Lithosphere, 2022 An in-depth recognition of the failure characteristics and scale of joints is of great significance for the stability assessment in rock engineering. Unfortunately, due to the close fitting of the upper and lower blocks of the joint under direct shear ...
Chang Liu +3 more
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Shock and Vibration, 2021 A discrete element method code was used to investigate the damage characteristics of jointed rock masses under repetitive impact loading. The Flat-Joint Contact Model (FJCM) in the two-dimensional particle flow code (PFC2D) was used to calibrate the ...
Jie Liu, Yan-Bin Song, Yue-Mao Zhao
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Journal of Rock Mechanics and Geotechnical Engineering, 2022 In underground rock engineering, water-bearing faults may be subjected to dynamic loading, resulting in the coupling of hydraulic and dynamic hazards. Understanding the interaction mechanism between the stress waves induced by dynamic loadings and liquid-
Jin Huang +5 more
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, 2022 Significant uncertainties remain regarding the field assessment of the peak shear strength of rock joints. These uncertainties mainly originate from the lack of a verified methodology that would permit prediction of rock joints’ peak shear strength ...
Ríos Bayona, Francisco, +3 more
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Study on the size effect of elastic modulus of rock considering the joint spacing
Frontiers in Materials, 2023 The relationship between the rock’s elastic modulus and deformation characteristics, affected by joint spacing and ductility, was not determined. This study investigates the size effect of the elastic modulus of rock with parallel joints using numerical ...
Tao Zhao, Tao Zhao, Tao Zhao, Gaojian Hu
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A review of shear strength models for rock joints subjected to constant normal stiffness [PDF]
, 2022 The typical shear behaviour of rough joints has been studied under constant normal load/stress (CNL) boundary conditions, but recent studies have shown that this boundary condition may not replicate true practical situations.
Thirukumaran, S, Indraratna, B
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Representative sampling method for laboratory testing on shear strength of rock joints
Frontiers in Earth Science, 2022 The direct shear test is commonly used to determine the shear strength of rock joints. The measured shear strength, however, varies greatly with specimen positions due to the heterogeneity of rock joints.
Changshuo Wang +6 more
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A new shear strength criterion of three-dimensional rock joints
, 2020 The presence of rock joints substantially reduces the rock mass strength. The deformability and stability of natural and engineered rock structures, such as rock slopes and underground caverns, are highly afected by rock joints along which sliding can
Li, Yingchun +3 more
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Taiyuan Ligong Daxue xuebao, 2021 The existence of non-persistent joints makes the stability, deformation characteristics, and stress distribution of surrounding rock more complicated.
Baoyu ZHANG, Changsuo ZHANG
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The Effect of Horizontal Smooth Joints on Strength and Deformability of Sandstone [PDF]
Eurasian Journal of Science and Engineering, 2017 The Uniaxial Compressive Strength (UCS) and deformability of jointed rock are required to design structures on or in jointed rock mass. These rock masses depend on the number and orientation of joints. In this study, horizontal smooth joints were created
Younis Alshkane
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