Results 11 to 20 of about 12,048 (309)

Effect of rock joints on lined rock caverns subjected to high internal gas pressure

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
The storage of hydrogen gas in lined rock caverns (LRCs) may enable the implementation of the first large-scale fossil-free steelmaking process in Sweden, but filling such storage causes joints in the rock mass to open, concentrating strains in the ...
Davi Rodrigues Damasceno   +2 more
doaj   +3 more sources

A roughness parameter considering joint material properties and peak shear strength model for rock joints

open access: yesInternational Journal of Mining Science and Technology, 2021
This study aims at proposing a reasonable roughness parameter that can reflect the peak shear strength (PSS) of rock joints. Firstly, the contribution of the asperities with different apparent dip angles to shear strength is studied.
Liren Ban   +4 more
doaj   +3 more sources

Experimental study on normal deformation characteristics of filled rock joints with typical fluctuation morphology

open access: yesFrontiers in Earth Science, 2023
The uneven deformation of filled rock joints subjected to ground stress can easily cause instability in engineering rock masses. Fluctuations in morphology and filling are the main factors affecting the normal deformation of filled rock joints.
Zhanyou Luo   +6 more
doaj   +1 more source

Influence of material bridges on shear strength of unfilled intermittent rock joints [PDF]

open access: yesGrađevinski Materijali i Konstrukcije, 2022
According to the well-known Jaeger's theory, the minimum possible rock mass shear strength as a discontinuum actually corresponds to the shear strength of rock joints.
Miladinović Borko   +2 more
doaj   +1 more source

Study on the Effect of Rock Strength on the Macro-Meso Shear Behaviors of Artificial Rock Joints

open access: yesGeofluids, 2022
Understanding the shear properties of joints of rock masses is of great importance for engineering disaster prevention and control. In this paper, a systematic study of the macroscopic shear properties of joints of rock masses with different strengths is
Yujing Jiang   +6 more
doaj   +1 more source

Study on Shear Mechanical Properties and Microscopic Failure Mechanism of Dentate Joints Based on DEM and Laboratory Tests

open access: yesBuildings, 2022
The stability control of the surrounding rock is greatly influenced by the rock joint’s shear mechanical characteristics and deformation failure mechanism. A numerical model of the dentate joints was created using a particle flow discrete element method (
Jiaqi Guo   +4 more
doaj   +1 more source

Study on the size effect of the secant modulus of rocks containing multiple parallel joints

open access: yesFrontiers in Materials, 2022
The secant modulus of the rock reflects the stiffness of the rock and the ability to resist deformation. There are significant differences in the secant modulus of the rock due to the different numbers of joints in the rock and the change in rock size ...
Jing Zhang   +7 more
doaj   +1 more source

Influence of the Number of Parallel-Joints on Size Effect of Elastic Modulus and Characteristic Elastic Modulus

open access: yesFrontiers in Earth Science, 2022
The number of joints existing in the rock affects the elastic modulus of the rock, and the relationship has not been obtained. In this paper, 10 numerical models are established by numerical simulations to study the effect of the number of parallel ...
Gaojian Hu   +12 more
doaj   +1 more source

Seismic response of rock joints and jointed rock mass [PDF]

open access: yes, 1996
Long-term stability of emplacement drifts and potential near-field fluid flow resulting from coupled effects are among the concerns for safe disposal of high-level nuclear waste (HLW). A number of factors can induce drift instability or change the near-field flow patterns.
Ghosh, A.   +2 more
openaire   +2 more sources

Experimental Study on Shear Behavior and Failure Mechanism of Bolted Heterogeneous Rock Joints under Different Anchorage Conditions

open access: yesGeofluids, 2021
Despite their frequent natural occurrence and engineering encounter, heterogeneous rock joints (rock joints with different lithological characters on both sides of the joint surface) have been studied much less systematically. To study the shear behavior
Xianzhen Cheng   +4 more
doaj   +1 more source

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