Results 21 to 30 of about 59,816 (292)

Direct Shear Test and Shear Strength Model of Clay-Filled Joints

open access: yesApplied Rheology, 2021
To better study the shear characteristics of infilled joints with soil having different moisture contents, the influence of the moisture content on the shear characteristics of the infilled joint was explored in this paper, and a revised shear strength ...
Chang Le   +3 more
doaj   +1 more source

Three-Dimensional Combined Finite-Discrete Element Modeling of Shear Fracture Process in Direct Shearing of Rough Concrete–Rock Joints

open access: yesApplied Sciences, 2020
A three-dimensional combined finite-discrete element element method (FDEM), parallelized by a general-purpose graphic-processing-unit (GPGPU), was applied to identify the fracture process of rough concrete–rock joints under direct shearing.
Gyeongjo Min   +7 more
doaj   +1 more source

Estimation of Shear Strength Parameters Considering Joint Roughness: A Stability Case Analysis of Bedding Rock Slopes in an Open-Pit Mine

open access: yesApplied Sciences, 2023
This study aims to fully explore the influence of rock joint roughness in the slope stability analysis of an open mine. Therefore, based on the least squares parameter estimation method, a generalized shear strength parameter coupling roughness, which is
Zehui Gao   +5 more
doaj   +1 more source

Micromechanical basis for shear strength of rock discontinuities [PDF]

open access: yes, 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.
Galindo Aires, Rubén Ángel   +2 more
core   +2 more sources

Shearing Performance of Natural Joints with Different Roughnesses under Direct Shearing Tests

open access: yesGeofluids, 2022
Roughness is one of the major characteristics of natural fracture in hydrocarbon and geothermal reservoirs, which has a significant influence on the activation of fractures during hydraulic stimulation.
Yang Zhang   +4 more
doaj   +1 more source

Experimental Study of Joint Roughness Influence on Fractured Rock Mass Seepage

open access: yesGeofluids, 2021
Surrounding rock pressure, water pressure, and joint roughness are the important factors that affect the fractured rock mass seepage. It is of great significance to quantify the influence of these factors through experiments. In this study, rock fracture
Zhongxi Tian   +4 more
doaj   +1 more source

A New Characterization Method for Rock Joint Roughness Considering the Mechanical Contribution of Each Asperity Order

open access: yesApplied Sciences, 2021
The morphology of the joint surface is multi-scale, and it can be divided into first-order asperity (waviness) and second-order asperity (unevenness). At present, the joint roughness characterization formula considers only the morphology contribution of ...
Zhouhao Yuan   +3 more
doaj   +1 more source

Characterisation of contact pressure distribution in bolted joints [PDF]

open access: yes, 2006
The quantification of contact area and pressure distribution in a bolted joint is essential information, as it determines the integrity of the coupling. Current bolted joint design standards are based on analytical solutions of the pressure distribution,
Arakawa   +11 more
core   +1 more source

A New Method for Determination of Joint Roughness Coefficient of Rock Joints [PDF]

open access: yesMathematical Problems in Engineering, 2015
The joint roughness coefficient (JRC) of rock joints has the characteristic of scale effect. JRC measured on small-size exposed rock joints should be evaluated by JRC scale effect in order to obtain the JRC of actual-scale rock joints, since field rock joints are hardly fully exposed or well saved.
Shigui Du   +4 more
openaire   +1 more source

A New Statistical Parameter for Determining Joint Roughness Coefficient (JRC) considering the Shear Direction and Contribution of Different Protrusions

open access: yesAdvances in Civil Engineering, 2021
The mechanical properties of joints are important factors affecting the safety and stability of rock mass. The joint roughness coefficient (JRC) is a parameter for describing the roughness morphology of the joint surface, and its accurate quantification ...
Jiu-yang Huan   +3 more
doaj   +1 more source

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