Influence of a Rock Bridge on the Shearing Behavior of Nonpersistent Rough Joints: An Experimental Study

Wang, S. C.; Yang, Xu; Li, W. T.; Qiao, Wei-Guo

doi:10.1007/s00603-023-03225-2

Cited by 6 publications

(1 citation statement)

References 23 publications

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“…Generally, structural surfaces are mostly formed under geological processes, such as joints and layers [2]. With the rise of civil engineering, a large number of structural surfaces associated with human activities have emerged [3]. These structural surfaces can be categorized into two groups based on the material nature on both sides of the interface.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis for Shear Behavior of Binary Interfaces under Different Bonded Conditions

Lv,

Han,

Zhang

et al. 2024

Applied Sciences

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The shear performance of the binary interface formed by mortar and rock cementation is a key factor influencing the stability and safety of basic engineering projects related to livelihood and economy since concrete has become one of the most widely used materials in engineering. Therefore, it is an urgent practical problem to further explore and clarify the shear failure mechanism of the mortar–rock binary interface. In response to the current research objective focused on fully bonded interfaces, this paper constructed binary interface models with different bonded conditions to perform direct shear experiments using numerical simulation methods, and the effect of bonded conditions on the shear behavior of the mortar–rock binary interface was analyzed. The results indicate that the bonded conditions have a significant influence on the shear mechanical behavior of the mortar–rock binary interface, which is mainly reflected in the stress-displacement curve characteristics, the shear strength, the fracture development and the stress distribution state. The research findings are of great theoretical significance for the further study of shear mechanics at the mortar–rock binary interface and of great practical significance for safe construction, resource conservation and disaster warning.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis for Shear Behavior of Binary Interfaces under Different Bonded Conditions

Lv,

Han,

Zhang

et al. 2024

Applied Sciences

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A comprehensive review of experimental studies on shear behavior of bolted rock joints with varying rock joint and bolt parameters and normal stress

Zhou,

Lang,

Huang

et al. 2024

Deep Underground Science and Engineering

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The shear characteristics of bolted rock joints are crucial for the stability of tunneling and mining, particularly in deep underground engineering, where rock bolt materials are exposed to high stress, water pressure, and engineering disturbance. However, due to the complex interaction between bolted rock joints and various geological contexts, many challenges and unsolved problems arise. Therefore, more investigation is needed to understand the shear performance of bolted joints in the field of deep underground engineering. This study presents a comprehensive review of research findings on the responses of bolted joints subjected to shearing under different conditions. As is revealed, the average shear strength of bolted rock joints increases linearly with the normal stress and increases with the compressive strength of rock until it reaches a stable value. The joint roughness coefficient (JRC) affects the contact area, friction force, shear strength, bending angle, and axial force of bolted rock joints. A mathematical function is proposed to model the relationship between JRC, normal load, and shear strength. The normal stress level also influences the deformation model, load‐carrying capacity, and energy absorption ratio of bolts within bolted rock joints, and can be effectively characterized by a two‐phase exponential equation. Additionally, the angle of the bolts affects the ratio of tensile and shear strength of the bolts, as well as the mechanical behavior of both bolted rock joints and surrounding rock, which favors smaller angles. This comprehensive review of experimental data on the shear behavior of bolted rock joints offers valuable theoretical insights for the development of advanced shear devices and further pertinent investigations.

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A method for automatically identifying the shape of locking sections in slopes

Pan,

Tang,

Yuan

et al. 2024

Environ Earth Sci

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Influence of a Rock Bridge on the Shearing Behavior of Nonpersistent Rough Joints: An Experimental Study

Cited by 6 publications

References 23 publications

Numerical Analysis for Shear Behavior of Binary Interfaces under Different Bonded Conditions

Numerical Analysis for Shear Behavior of Binary Interfaces under Different Bonded Conditions

A comprehensive review of experimental studies on shear behavior of bolted rock joints with varying rock joint and bolt parameters and normal stress

A method for automatically identifying the shape of locking sections in slopes

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