... consisting of sprayed concrete and a waterproof sprayed membrane. Numerical distinct element modelling in 3DEC is used to simulate the groundwater pressure. The results are compared to existing groundwater pressure measurements performed behind the lining. The construction damage zone (CDZ) is included...

... test rig relative deflection reinforcement structural geology disc force simulation vertical force deflection upstream oil & gas cutter force subsurface engineering deformation behaviour sensor documentation measurement system loading eurock 2020 tunnel boring machine ©...

... Abstract In this paper, a numerical investigation of uniaxial compressive tests on prismatic specimens with single cylindrical pre-existing cavities in brittle rock is performed. To investigate the rock fracture around cavities and to assess the potential of the numerical model to simulate...

.... social responsibility isotherm boundary renewable energy borehole oosterbaan granite underground thermal energy storage sustainability Helsinki conductivity storage sustainable development thermal conductivity University water store Simulation thermal property procedia engineering 191...

... dissipation, kinetic energy and damping dissipation. The proposed energetic approach is verified by computing the energy balance of the system during simulations of compression, tension and shear tests. 1. Introduction Rockburst is a sudden and violent phenomenon resulting from high concentration...

.... We conducted distinct element method-based numerical simulations to explore the behavior of hydraulic fracture propagation and containment under varying in-situ stress conditions and fluid injection rates. The results revealed that even a small contrast of minor principal stress between pay-zone...

... hot storage heat exchanger prototype fluid modeling production logging Discharge diffusive hot storage geothermal exchanger geostock exchanger production monitoring Upstream Oil & Gas Simulation heat transfer procedia engineering 191 ground heat storage storage Energy Storage...

... Abstract Discontinuum and continuum modelling approaches were used to simulate the single- and multi-stage hydraulic fracturing. Twodimensional discontinuum modelling of single-stage fracturing revealed a marked modification of the stress field in the vicinity of the fracture (stress shadow...

... & mining Monte Carlo simulation operational safety Simulation geotechnical hazard analysis discrete fracture network mapping highwall mining operation trace length highwall hydraulic fracturing elmouttie dfn realisation shivakumar karekal procedia engineering 191 bedding marc elmouttie...

... methods in the evaluation of slope stability. To complex rock and soil slopes, numerical approaches such as finite element and finite difference methods may be more suitable due to their flexibility when applied to simulate in situ stresses, loading condition, and multi-field interactions. Even though...

... into this problem, we use the combined finite-discrete element method to examine how the mean of local stress tensors is related to the far-field stress. We have conducted a series of stress simulations on a model of a fractured rock mass subjected to various boundary loadings, and calculated the Euclidean mean...

... considering several confining pressure conditions was performed to calculate the stress intensity factor. Based on the numerical simulation results, the modification of the fracture toughness estimation was suggested. Applicability of the suggested estimation was discussed with comparing the mode I fracture...

... Abstract The current study presents a numerical modeling approach for three-dimensional simulation of hydro-shearing in jointed rocks for the generation of a man-made, multi-fracture heat exchanger in Hot Dry Rock (HDR) Geothermal reservoir. Various literatures have suggested the presence...

... ABSTRACT: The Particle Flow Code (PFC) is a useful tool for simulating the failure behavior of hard rocks. However, one of the major drawbacks of the modeling is the unrealistically low ratios of simulated compressive strength to tensile strength for hard rock specimens. This means...

... the macroscopic stress- strain relations, the damage evolution and the failure behavior. Numerical simulations at the grain size level can help to understand the complex behavior of rocks and to detect, which components have significant effect on the overall behavior. This article describes research which...

... is written to solve these equations and numerical simulations with this code are performed in several situations. 1 INTRODUCTION Drillstring vibration, especially in the form of torsional stick-slip motions, axial bit-bounce motions, and lateral whirl motions result in failure of drillstring components...

... (1944). Upstream Oil & Gas displacement rock mass behavior debernardi Simulation Artificial Intelligence three-dimensional model Politecnico knowledge management numerical method convergence excavation application landslide rock mass construction Barla tunnel excavation...

... redistribution that can cause strain energy to be stored inside coal and rock structures. One of the major issues is to determine the effect of boundary conditions on energy release under confinement that is directly concerned with varying boundary conditions. Reservoir Characterization Simulation poeck...

... Characterization havaej characterisation application metals & mining Simulation rock slope rock mass University stead Upstream Oil & Gas mechanism slope failure slope stability Pit Slope reservoir geomechanics Proc open pit slope brittle fracture failure mechanism Rock Mechanics...

... rock failures. The simulation results for the energy released during excavation and rock failure are validated by making comparisons against known analytical solutions. The energy release concepts forwarded in this study are explained through application of the methodologies to a large coal mine...