Results 51 to 60 of about 3,185 (188)
Updating Grasselli's 2D morphology parameter for estimating JRC of rock joints
Yantu gongcheng xuebaoThe Grasselli's 2D morphology parameter θG used to estimate the joint roughness coefficient (JRC) is questionable, because it only considers the apparent inclination of the shear side and ignores the internal undulation angle.
HONG Chenjie 1, WENG Hanqian 1, WANG Kai 2, 3, HUANG Man 2, 3, TAO Zhigang 1, DU Shigui 4
doaj +1 more source
Study on the Accurate Measurement and Quantitative Evaluation Methods of Aggregate Surface Roughness
Advances in Materials Science and Engineering, 2021 In this work, to quantitatively analyze the roughness of the surfaces of road aggregates, the contact measurement technique and contactless scanning technique were, respectively, used to capture the coordinate data of point clouds on the aggregate ...
Luoke Li, Meng Guo, Cong Zeng
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Home Safe Home: Safety Gains Through Telework During the Covid‐19 Pandemic
LABOUR, EarlyView.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
Geometric Effect of Asperities on Shear Mechanism of Rock Joints [PDF]
, 2015 Three-dimensional tracking of changes of asperities is one of the most important ways to illustrate shear mechanism of rock joints during testing. In this paper, the changes of the role of asperities during different stages of shearing are described by ...
Ballivy, Gérard +4 more
core +1 more source
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 +5 more
wiley +1 more source
Shear Strength Characteristics And Microcrack Pattern Of Granite From Pos Selim, Perak, Malaysia [PDF]
, 2007 Granite bodies can fracture in various characteristic ways relative to the density of fractures, the number of joints sets and their distribution, and the type of fractographic features on fracture surfaces.
Mohd Pauzi, Nur Irfah
core
Hot-dip-zinc-coating of prefabricated structural steel components [PDF]
, 2010 This JRC-Scientific and Technical Report gives information from pre-normative research for methods to prevent liquid metal assisted cracking of prefabricated structural components during zinc-coating in the liquid zinc melt, that may impair the ...
FELDMANN M. +5 more
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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 +5 more
wiley +1 more source
Frontiers in Earth ScienceDetermining 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 +4 more
doaj +1 more source
Slope stability in slightly fissured claystones and marls [PDF]
, 2015 The final publication is available at Springer via http://dx.doi.org/10.1007/s10346-014-0526-5The paper deals with the behavior of some characteristic soft rocks found in the Iberian Peninsula.
Alonso Pérez de Agreda, Eduardo +1 more
core +2 more sources