... is important. Indeed, it must be smaller enough than the size of the whole structure and bigger enough than the size of the heterogeneities. It is used to get an approximation of stress and strain fields under appropriate boundary conditions. In the work of [1], the following definition of RVE is proposed...

... geomechanics expansion coefficient hydration Reservoir Characterization displacement boundary condition bentonite hydration saturation Artificial Intelligence discrete fracture geometry Upstream Oil & Gas borehole procedia engineering 191 bentonite interface han�ilová diffusion equation...

... and self-propped fracture will persist. Artificial Intelligence fracturing fluid dislocation fractal interpolation fracturing materials complex reservoir roughness boundary condition slip direction plastic deformation hydraulic fracturing Upstream Oil & Gas crack surface front-slope...

... of drillstring. Firstly, several sources of excitation in vibration are analyzed in order to figure out their influences on the vibration. Then, boundary conditions and initial conditions are presented. Afterwards, the dynamic behavior of drillstring is considered as composed of axial-torsional vibration...

... on coal burst occurrence using numerically efficient nonlinear Finite Element Models. A variety of loading conditions, boundary conditions, and interface properties were evaluated to determine their effects on failure of single and group of pillars. The ultimate aim here is to undertake a significant...

...). Deviations from the standard test methodology with hard and stiff materials arise mainly from the violation of the accepted boundary conditions in the Brazilian test, e.g. three-dimensional stresses are developed in the contact regions (Serati 2014). In the case of the PLST, the available relationships...

... arise as questions. Reservoir Characterization structural geology sepulveda Upstream Oil & Gas frequency Chile Santiago stability Earthquake dynamic numerical analysis central chile mechanical property rock slide Universidad boundary condition geometry landslide deposit...

... property boundary condition excavation stiffness hypothesis model observational method deformation Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1 Observational method in the context of rock...

...-dimensional numerical model of a circular excavation reinforced by rock bolts that are fastened by cement grout along their full length. Artificial Intelligence steel bar Prague node boundary condition stiffness matrix czech technical university Reservoir Characterization rock massif...

... conduction and advection) and depends on several boundary conditions (e.g. surface temperature, basal heat flow) as well as on numerous parameters (e.g. 3-D topography, distribution of geological units/of thermal conductivity, water circulation pattern/distribution of hydraulic conductivity), along...

... rigid body reservoir simulation constraint coal boundary condition numerical model ABSTRACT: The wear of the bits on a continuous mining machine is a problem that affects mine operators around the world. The fundamental problem (wear) still causes increase in the downtime of the equipment. One...

... simulates conditions occurring in nature and under which the shear force of rock joints can be determined are CNL and CNS. 1.1 Boundary conditions The direct shear device was configured to simulate conditions that occur in nature during civil engineering works, such as above and below ground excavation...

... Abstract The Artificial Ground Freezing method (AGF) has been widely used for both civil engineering and mining applications for ground stabilization and water control. In AGF models, the thermal boundary conditions at the freeze pipe wall strongly depend on the cooling conditions...

... is the fluid density. The expression of the fluid density variation for the fracture is defined by: The fluid flowW inside the fracture governs the normal fracture aperture [u]·nc, which is related to the fluid flow via the cubic law (Whitherspoon et al., 1980): 2.4 Boundary conditions The associated...

...°–30° under constant normal load (CNL) and constant normal stiffness (CNS) boundary conditions at different initial normal stress ranging from 0.10 MPa to 2.04 MPa. The thickness of infill (t), varied from 0, 5, 7 and 10mm over an asperity height (a) of 5mm, which makes the t/a ratio as 0, 1, 1.4 and 2...

... Abstract In this paper, an analytical solution is developed of the stress and displacement components in a three-dimensional solid disc subjected to Brazilian and point load test boundary conditions. The methodology is initially based on introducing the load distribution in both tests using...

.... The structure comprises of a major thrust plane striking NE-SW with granitic rocks riding over limestone. Reservoir Characterization temperature distribution reservoir geomechanics variation displacement boundary condition Upstream Oil & Gas Thickness Disposal bench mark test 2 canister...

.... The suggested procedures are applied and tested on analysis of the behaviour of coal-polyurethane geocomposite arising from coal seam grouting for improving resistance to dynamic events. scaling method material property laboratory testing CT image boundary condition identification reservoir...

... normalized displacement boundary condition plastic zone means plastic radius tunnel section rock mass deformation displacement tunnel face excavation normalized plastic radius numerical model Tunnel Stability eurock 2012 Convergence Confinement Method Extending the Convergence...

... Reservoir Characterization displacement Filtration Regime Control productive stratum Upstream Oil & Gas metastable state boundary condition structural geology host rock block mass vibrosource stress Redistribution rock block mass block mass experimental study stratum rock mass...