The shear strength of rock and rock joints
WebJun 7, 2024 · When a rock mass shears along a joint surface, the shear resistance is affected by joint surface undulations and friction between the contact regions. During an … WebAug 24, 2024 · This study examined the shear behavior of rock joints and proposed an analytical model for estimating the shear strength at rock joints. Numerous experimental …
The shear strength of rock and rock joints
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WebMay 27, 2014 · Joints are highly anisotropic features. They exhibit large differences between their high normal stiffness, and their low, scale-dependent shear stiffness. Joints … WebThe Shear Strength of Rock Joints in Theory and Practice. The paper describes an empirical law of friction for rock joints which can be used both for extrapolating and predicting …
WebSep 1, 2014 · The theoretical basis for evaluating shear strength in rock joints is presented and used to derive an equation that governs the relationship between tangential and normal stress on the joint during situations of slippage between the joint faces. WebSep 1, 1976 · Rock joints exhibit a wide spectrum of shear strength under the low effective normal stress levels operating in most rock engineering problems. This is due to the Strong influence of surface roughness and variable rock strength.
WebAlthough boundary conditions can significantly impact the shear behaviors and asperity damage evolution of jointed rocks, numerical studies on the damage of 3D rough rock joints under the constant normal stiffness (CNS) boundary condition have rarely been reported. In this work, the three-dimensional model of the irregular joint surface is established by … WebBarton-A new shear strength criterion for rock joints. Eng. Geol 1973. Barton-Shear strength of filled discontinuities. Bergmekk. Oslo 1974. Barton, N. Estimating the shear strength of rock joints. 3rd. ISRM cong. 1974. Barton, Lien and Lunde-Engineering classification of rock masses for the design of tunnel support 1976.
WebAug 10, 2024 · Ladanyi and Archambault 20 established a peak shear strength model for rock mass structural planes containing a rock bridge by combining the effects of friction, dilatancy, cohesion, and...
WebApr 12, 2024 · Considering that a jointed rock mass in a cold area is often affected by periodic freeze–thaw cycles and shear failure, definitions for the mesoscopic and … humble hearts therapyWebSep 15, 2024 · Barton, N.R. Shear Strength Criteria for Rock, Rock Joints, Rockfill, Interfaces and Rock Masses. J. Rock Mech. Geol. Eng. 2013, 5, 249–261. [Google Scholar] [Green Version] Barton, N.R. Characterization of Fracture Shearing for 4D Interpretation of Fractured Reservoirs. In Proceedings of the 2nd EAGE Workshop on Naturally Fractured ... humble hearts walker southWebMar 23, 2024 · Shear strength of jointed rock is much lower than the strength of intact rocks. In the field, it represents the plane of weakness, and it can be associated w... hollybush post office opening times