... between the metal cylinders seen in Figure 1, an additional temperature sensor was installed in the calorimeter, close to the metal cylinder hosting the hydrating sample. From a mathematical viewpoint, we resort to the so-called heat conduction equation, which combines the first law of thermodynamics...

... south africa government reservoir characterization rectangular pillar geologist data mining geological subdiscipline pillar layout pretoria equation pillar metals & mining pillar strength circular pillar geology geometry dimension napier university malan reservoir...

... upstream oil & gas diameter international journal geology reservoir geomechanics equation asia government reservoir characterization gauge geologist india government geological subdiscipline interface stiffness rock mechanic strength kharagpur experimental investigation...

... simulation equation janeiro geotechnic node ABSTRACT: Global and large failures are now the reality of some mines. The risk management process and monitoring system are approaches used to mitigate the problem. However, they cannot avoid the problem when the slope fell or is in a continuum...

... ABSTRACT: Fracture size is a foundational parameter in the evaluation of mechanical and hydraulic properties of rock masses for constructing geological disposal repository. Washburton's equation and Abel's integral are widely used in estimating the probability density function of fracture...

... fracturing reservoir geomechanics piezoelectric excitation equation interphase upstream oil & gas mineral tectosilicate excitation weakening tensor section 2 frequency nodal displacement formulation reduction constituent mineral 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium...

... to the solutions involving the complex variable theory and conformal mapping. A possible solution procedure for the determination of these mapping coefficients based on an iterative process including the solution of linear systems of equations is presented. The proposed solution procedure can be utilized...

... and physical apertures is emphasized, requiring lab-scale JRC 0 for the conversion. The paper provides some examples of joint-related behaviour in the case of tunnels, caverns and slopes. It also includes serious critique of GSI and the H-B based continuum modelling, due to the complex equations and the lack...

... force at the interface has a viscous component proportional to the relative speed of the fluidized rocks, an analogous equation to Darcy's law for the flow of a Bingham fluid in a porous medium is recovered. The model was numerically solved using FEM, achieving an adequate reproduction of the results...

... performance of cable bolts under axial loading. The works can be categorised into two different approaches. One is associated with various solutions to the force equilibrium equation for the micro element of the grouted cable bolt (Li and Stillborg, 1999; Ma et al., 2014; Ren et al., 2010; Yuan et al., 2004...

... prediction tensile strength vector int saksala table 1 figure 1 thermal expansion coefficient konietzky equation granite matrix 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Numerical prediction of thermal weakening effects on granite rock Timo Saksala...

... that extends underground 340 m (1245 ft). The vent shaft fan operates in normal conditions at 18,000 rpm and moves an air flow Q of 70,800 m 3 /sec (2.5 million ft 3 /min). geology strength blast induced vibration artificial intelligence mpa equation upstream oil & gas machine learning...

... easily violate under complex in-situ geotechnical conditions. coal mining reservoir geomechanics geologist rock type geological subdiscipline microcrack organic-rich rock australia government reservoir characterization evolution energy resource engineering envelope simulating equation...

... disregard the impacts of heat transport. upstream oil & gas fracture hydraulic fracturing geology drilling fluids and materials drilling fluid management & disposal well control asia government reservoir characterization reservoir surveillance reservoir geomechanics equation...

... regularization constraint china government international reservoir characterization information machine learning constraint regularization constraint tarim basin petrochina tarim oilfield company singh impedance resolution dictionary learning geophysics assumption prediction equation...

... government simulation collision shirazi ddpm fraction erosion reduction slurry cfd simulation equation inter-particle collision 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Numerical modeling of erosion in dense slurry flows Shahabedin Hojjati Research...

..., the composition of the minerals, the particle sizes, and the structural types are only a few of the variables that might affect the typical stress thresholds (Malkowski and Ostrowski, 2017). wellbore design reservoir geomechanics equation geology europe government young secant poisson micro-crack...

... consists in solving the corresponding compliance matrix equation by means of the least square best fit multi-regression approach in groups of samples, which are then averaged. The second is based on minimizing the error in the stress invariant by means of a non-linear gradient algorithm. Results...

... and gabbro. Then uniaxial compressive strength (UCS) tests were carried out on the hot specimens. Mineralogical analysis, density and porosity tests were also performed on the samples. The data were evaluated using multiple regression analysis and an estimation equation with very high correlation coefficient...

... isotropy determination geology reservoir characterization evaluation cross-section geologist rock mechanic geological subdiscipline plane cylindrical specimen calibration procedure equation consideration mining science assumption deformation eqn international journal isotropy plane...