Results 11 to 20 of about 111,840 (308)

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

Failure Characteristics and Scale in a Sandstone Joint Subjected to Direct Shear Testing: Experimental Investigation with Acoustic Emission Monitoring

open access: yesLithosphere, 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
doaj   +1 more source

Influence of time-dependence on failure of echelon rock joints through a novel DEM model [PDF]

open access: yes, 2015
This is an Accepted Manuscript of an article published by Taylor & Francis Group in [European Journal of Environmental and Civil Engineering] on [September 2015], available online at: http://www.tandfonline.com/10.1080/19648189.2015.1064624This article ...
Jiang, Mingjing   +4 more
core   +4 more sources

Thermal response of jointed rock masses inferred from infrared thermographic surveying (Acuto test-site, Italy) [PDF]

open access: yes, 2018
The Mediterranean region is affected by considerable daily and seasonal temperature variations due to intense solar radiation. In mid-seasons, thermal excursions can exceed tens of degrees thus influencing the long-term behaviour of jointed rock masses ...
Fiorucci, Matteo   +3 more
core   +1 more source

Numerical Modeling on Dynamic Characteristics of Jointed Rock Masses Subjected to Repetitive Impact Loading

open access: yesShock 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
doaj   +1 more source

Effects of fracture aperture and roughness on hydraulic and mechanical properties of rocks : implication of seismic characterization of fractured reservoirs [PDF]

open access: yes, 2005
Roughness and aperture are two important characteristic parameters controlling fluid flow in natural joints and fractures. It has been demonstrated by many authors that knowledge of roughness does not directly lead to that of aperture, and aperture ...
Liu, Enru
core   +1 more source

Laboratory-scale investigation of response characteristics of liquid-filled rock joints with different joint inclinations under dynamic loading

open access: yesJournal 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
doaj   +1 more source

Experimental studies on the shear resistance of original coal-shale joint [PDF]

open access: yes, 2017
Purpose. Experimental study and theoretical modeling of the shear resistance of original coal-shale joint. Methods. A two-segment model was developed to describe the shear resistance-shear displacement curves obtained from the direct shear tests of ...
Dong, H, Guo, B, Wang, L
core   +2 more sources

Representative sampling method for laboratory testing on shear strength of rock joints

open access: yesFrontiers 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
doaj   +1 more source

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