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Keywords: numerical modeling
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Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0585
... Carpathians, Slovakia has been subjected to a detailed investigation involving geomorphic mapping, remote sensing analysis, structural data collection and numerical modeling. To improve our understanding of these gravity-induced processes, we performed a continuum-based finite-element modeling set up using...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0024
... ABSTRACT: Sanding at scale is complex due to dynamic changes in downhole conditions. To provide needed results for making practical decisions, this paper describes the latest improvements in a numerical model and its application in estimating well specific sanding. Two essential components...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0862
... of folded strata-induced failures in tunnel projects worldwide. Despite efforts to diagnose the root causes of these failures, effective solutions remain elusive. Thus, this research endeavors to address this gap by developing a numerical model simulating hypothetical folded strata configurations along...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1069
... established, it is possible to characterize the structural condition of the rock mass and estimate the equivalent structure that controls the slope failure. This process is carried out through two-dimensional continuous numerical modeling with explicit structures and the obtained indicators of slope stability...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1071
... ABSTRACT: Hydraulic fracturing is one of the most widely used techniques adopted in the oil industry to enhance reservoir permeability. In traditional hydraulic fracture modeling, the numerical model simulates half of the fracture geometry by taking advantage of model symmetry. However...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0116
.... Pillar strength determination is typically accomplished using empirical formulae or numerical modelling. Although several numerical codes are available, mine sites still rely on empirical approaches despite their well-known limitations. Empirical methods are popular in the mining industry due...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0296
... the rock structure in the pattern orientation. An improved understanding of the influence of blasthole pattern in relation to the jointing in the bench could aid blast design selection to achieve the required fragmentation. Numerical modelling using a hybrid finite/discrete element program coupled...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0772
... strength rockburst simulation santiago excavation rock mass equation upstream oil & gas constitutive model geological subdiscipline graph numerical modeling gsi chile advanced mining technology center mohr coulomb strainburst ARMA 23 0772 Comparison of constitutive models...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0111
... wave propagation in a single material medium imitating the conditions found in underground mines. Understanding how waves propagate in a medium is fundamental to better interpret real-time information for accurate rockburst prediction. For this purpose, a numerical model is developed to represent...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0330
... particles were simulated with cohesive elements. For simplicity, our current model is a 2D simulation and 3D modeling is pending. Furthermore, up-scaling was necessary to avoid excessively small-time steps. Comparison between the experimental data and the numerical results shows that the numerical modeling...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2142
... supporting systems, and creating life and financial problems. Analytical and empirical methods by means of hydraulic analysis and regardless of existing discontinuities encounter great uncertainties in estimating the accurate groundwater inflow. Therefore, numerical models are preferred due...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1043
... in-situ conditions (Isik et al. 2008; Agan 2014; Birid 2015). reservoir geomechanics equilibrium reservoir characterization displacement saudi arabia government radial displacement diameter strength property numerical modeling simulation pressuremeter rock mass pressuremeter test pmt...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1607
... compound constitutive model numerical modeling ARMA 21-1607 A Compound Constitutive Model for Numerical Modeling of Salt and Potash Structures Chieslar, J. D., Ph.D. AES, Inc., P.O. Box 242, Piedmont, SD, 57769, USA Copyright 2021 ARMA, American Rock Mechanics Association This paper was prepared...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1752
... pulse and resulting size of the fracture. Analytic estimates are helpful for fast engineering estimates and preliminary feasibility assessments of fracturing systems based on wellbore pressure pulse. In the end, we illustrate analytic predictions with numerical modeling. reservoir geomechanics...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2123
... numerical modeling permeability har element fragmentation technique propagation Upstream Oil & Gas fracture aperture regime discontinuity fracture finite element equation ARMA 19 XXXX Numerical modeling of evolving discontinuities in rocks using solid interface finite elements Maedo, M.A...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0350
... ABSTRACT: Current research indicates that underground stability is a function of more than just pillar strength and tributary area loading. From pillar observations and numerical modeling results, one finds that stress interactions between the pillars and the surrounding rock mass can impact...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-080
... ABSTRACT: The interaction of lithology and different geological units (e.g., joints, beds, faults, and alteration) and their impacts on rock slope stability can impose significant challenges for a mining operation. Numerical modeling is a powerful tool for simulating fault response...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1210
... present a forward numerical modeling approach using the finite-discrete element modeling code ELFEN to simulate these early deformation processes in carbonate systems. This modeling approach requires an initial geometry, initial rock properties, gravitational loading, and failure criteria. Bathymetry data...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1197
... stimulation is modelled numerically to aid conceptual design of the well geometries and completions. The numerical modeling approach is based on: (a) full hydro-mechanical coupling; and (b) explicit representation of a Discrete Fracture Network (DFN). The reservoir-scale model in C has a core region of 1500...

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