... compressive strength heterogeneity variability vein archetype specimen canada government microstructure emergent strength orientation axis vein microstructure vein orientation boundary simulation doi interpreting variability day 2021 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium...

... geomechanics canada government geology metals & mining sidewall displacement united states government reservoir characterization strainburst geometry axis flux obelisk malovichko geologist excavation geological subdiscipline excavation boundary kaiser tunnel figure 5 correspond flac...

... geological subdiscipline equation figure drillhole detonation method situ ellipse magnitude orientation axis poderosa mining company 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG In situ stress evaluation according to the Drillhole detonation method...

... motor. The ADC, on the other hand, builds on the ODC concept by adding a free rotational mechanism in a secondary axis that is not concentric with the main rotational axis. south korea government mechanism axis cutting seoul national university metals & mining asia government actuated...

... government deformation construction geologist reservoir characterization ground transportation displacement beijing asia government rail transportation settlement tunnel technology beijing china university republic underground pipeline university layout wang underground space axis...

... characterization porosity westerly granite reservoir geomechanics intrusion porosimetry upstream oil & gas porosimetry geological subdiscipline dependence mercury intrusion porosimetry amplitude sensor axis figure 1 pore specimen thermal degradation cylinder mercury porosimetry mip...

... structural geology geodynamic zoning upstream oil & gas reservoir characterization dislocation assessment seam mining operation numerical simulation metals & mining coal seam axis allocation localization brachysyncline flank boundary validation calculation...

... trajectory algorithm axis mining science apparatus rock mechanic international journal calculation tracking fragment rotation resolution fragmentation frag 50 fragment trajectory viewpoint development giacomini Abstract In this paper, an apparatus to track rock fragment...

... characterization rock mechanic requirement deviation perpendicularity engineering gauge suggested method university commission specimen strength poisson diameter axis isrm suggested method specimen 16 Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón...

... formula, cause the adjusting of jacking direction will be more critical compared with its application in shallow strata conditions. metals & mining deviation calculation formula engineering formula coal mining axis resistance friction correction declination pipe stratum coefficient...

... geomechanics criterion deviation deformation tensor concentration anisotropy axis transversal isotropy generalization upstream oil & gas correspond lekhnitsky plane isotropic media hill reservoir characterization contour transition nirenburg elastic-plastic transition Rock Mechanics...

... Abstract The main purpose of this paper is to analyze the convergence measurements in a drift excavated in the Callovo-Oxfordian claystone. The drift axis is in the direction of the major principal horizontal stress whereas the stress state is quasi-isotropic in the drift's section...

... a borehole. This method is the Cross-sectional Borehole Deformation Method (CBDM) and two dimensional state of stress change within rock mass in a plane perpendicular to a borehole axis can be measured. In this paper, the CBDM is applied to monitor stress changeof immediate rock mass of a rock cavern during...

... ABSTRACT To quantify the flow-relevant geometric properties of the pore structure in Berea sandstone, we introduced the three dimensional medial axis analysis, and we apply this method to micro focus X-ray CT volume data obtained under air and pressurized to 25MPa by using CT pressure vessel...

... creep creep test axis tunnel inelastic volumetric strain longitudinal wave velocity ABSTRACT The use of underground facilities such as waste reservoirs and power station caverns is increasing. The excavation of underground openings results in a change in stress distribution which may lead...

... of Santarelli et al. 2 and Zhang et al. 3 wellbore integrity fracture pattern pore pressure viscosity Wellbore Design orientation Simulation borehole reduction Reservoir Characterization Upstream Oil & Gas modeling permeability factor ellipse hydraulic fracturing axis fractured rock...

... than one specimen to determine a set of anisotropy. The size of the specimen is another problem. Reservoir Characterization displacement microcrack-arrayed body coefficient machine learning Upstream Oil & Gas reservoir geomechanics axis back analysis unknown parameter hollow...

... Oil & Gas elasticity tensor crack tensor open microcrack reservoir geomechanics microcrack elastic modulus tensor Oshima granite granite anisotropy Reservoir Characterization orientation ijkl compression test axis uniaxial compression test Oda Rock mechanics directional change...

..., the longitudinal axis of the powerhouse was changed and determined as the maximum horizontal stress is acted almost parallel to it, considering the initial rock stress and the direction of predominant joint set 3, 4, 5 . Secondly, a series of measurements of induced stress by CCBO was performed within rock mass...

... experiment natural extension optimization problem anisotropic rock axis hydrostatic pressure determination material principal axis material parameter principal stress space parametre base vector specimen axis Anisotropic yield function for rocks and evaluation of material parameters Fonction...