Results 51 to 60 of about 458 (163)

Changes in Joint Surface Roughness of Two Natural Rocks During Shearing

, 2019
This study seeks to investigate the effect of joint surface damage on the shear strength of two natural rocks, namely sandstone and argillite. A series of shear box tests were performed on the jointed rock specimens with different joint roughness ...
Cui, Chen, Gratchev, Ivan, Kim, Dong-Hyun, Chung, Matthew   +3 more
core   +1 more source

Grain‐Scale Heterogeneity in Fault Veins Influences Shear Rupture, Damage Distribution, and Microseismicity

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract Fault veins, mineral‐filled fractures within fault zones, exhibit substantial grain‐scale structural variation, yet, the mechanical consequences of this heterogeneity on fault deformation and seismicity remain poorly constrained. Here, we use the Discrete Element Method to investigate how grain‐scale heterogeneity in quartz veins, which are ...
Lie Kong, Nico Bigaroni, Bing Qiuyi Li, Qinxin Hu, Pathegama Gamage Ranjith, Junlong Shang   +5 more
wiley   +1 more source

New 2D roughness parameters with geometric and physical meanings for rock joints and their correlation with joint roughness coefficient

Frontiers in Earth Science
Determining the joint roughness accurately will better serve the peak shear strength estimation models of rock joints used for stability assessment of rock masses.
Cheng He, Huiming Tang, Huiming Tang, Kun Fang, Sixuan Sun   +4 more
doaj   +1 more source

Home Safe Home: Safety Gains Through Telework During the Covid‐19 Pandemic

LABOUR, Volume 40, Issue 2, Page 162-192, June 2026.
ABSTRACT This paper exploits exogenous shifts in work organisation during the Covid‐19 pandemic to study the implications of hybrid and remote work arrangements on occupational safety. Combining accident registers and household survey microdata from Hungary, we are able to address potential selection and reporting bias, and reliably identify the ...
Bálint Menyhért, Szilárd Erhart
wiley   +1 more source

Influence of Temperature on Seismic Moment as a Diagnostic for Crustal Permeability Creation

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Understanding what controls permeability is important in modulating crustal processes and the recovery of fuels and energy from the subsurface. Permeability may be created by the reactivation of fractures creating connected flow pathways that result in microearthquakes (MEQs).
Junpeng Wang, Pengliang Yu, Agathe Eijsink, Matthew Roseboom, Chris Marone, Jacques Rivière, Parisa Shokouhi, Derek Elsworth   +7 more
wiley   +1 more source

Reconstruction of Shear Surface Based on Joint Roughness Coefficient and Its Relation to Rock Shear Strength [PDF]

Rock strength is a fundamental parameter in rock mechanics, serving as the basis for predicting rock behavior under different loading conditions. Among the various approaches to characterizing rock strength, shear testing of discontinuities plays a ...
Wicaksana, Yudhidya, Hardiono, Enver, Prassetyo, Simon Heru   +2 more
core   +1 more source

Characteristics of Deformation and Damage of Multi‐Thin Composite Oil Shale Top Plate Under the Influence of Different Factors

Energy Science &Engineering, Volume 14, Issue 4, Page 2118-2136, April 2026.
In this study, the key control mechanism of surrounding rock stability is revealed by theoretical analysis and UDEC‐Trigon numerical simulation method, aiming at the problem that oil shale roof is prone to separation and slip deformation under complex stress.
Jiang Xiao, Yujiang Liu, Yihui Wang, Boyuan Zhang, Yulin Wang, Tongxiaoyu Wang   +5 more
wiley   +1 more source

Blasting effects of cross‐fault deep‐buried excavation on adjacent existing tunnel stability

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 66-80, March 2026.
Based on the theoretical analysis of cylindrical wave propagation in a deep rock mass in the fault with a filling layer, the calculation method of peak particle velocity caused by wave propagation in the existing tunnel is established. The viscoelastic characteristics of a rock mass are examined in the analysis.
Shaobo Chai, Lianzeng Chai, Chao Meng, Kai Liu, Lang Song, Shaojie Zheng   +5 more
wiley   +1 more source

A new method for automated estimation of joint roughness coefficient for 2D surface profiles using power spectral density

, 2020
In this study, a new method for the objective and accurate estimation of the joint roughness coefficient (JRC) of surface profiles, which are extracted from terrestrial laser scanner point clouds, is proposed.
Unlusoy, Deniz, Süzen, Mehmet Lütfi
core   +1 more source

Effects of joint geometric configurations on cyclic shear behavior of intermittent joints under constant normal stiffness conditions

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 233-249, March 2026.
The present manuscript explored the effects of joint configurations on the cyclic shear behavior of intermittent joints for the first time. The cyclic shear response, shear strength degradation, dilation characteristics evolution, frictional property, fractal dimension, and dissipative energy were further analyzed during shear cycles, which is crucial ...
Bin Wang, Yujing Jiang, Qiangyong Zhang, Hongbin Chen   +3 more
wiley   +1 more source