1-20 of 62
Keywords: calibration
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0223
... ABSTRACT: In order to generate a full-scale, real world data set for calibration purposes for the rockfall simulation program RAMMS::ROCKFALL, we conducted extensive single block induced rockfall experiments with blocks of 200/800/2670 kg (~440/1760/5890 lb). With a fully four-dimensional...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0390
... ABSTRACT: The development of a constitutive model for hard rock goes hand in hand with conventional experiments, which provide information about the intrinsic failure properties of the material. To date most models are calibrated and validated using the macro stress-strain responses from...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0438
... ABSTRACT: Parameter calibration is an indirect problem in which responses of a system are known, but the properties of the said system are not. Often, trial and error strategies are used for parameter calibration. However, they can be labor intensive and time consuming. Machine learning...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2063
... ratio for the excavated drives. The numerical model is calibrated using the peak particle velocity data of blast vibrations obtained from the field test. The numerical results are in accord with the field observations in the mine. Limited damage to the drives is observed and the dynamic model confirms...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1903
... seismic events, the use of a spatial-temporal point process model called ETAS (Epidemic Type Aftershock Sequences) is proposed. The model simulates a process in which each event produces its own offspring events. To use this seismic indicator, it is necessary to determine parameters for a calibration...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1687
... Safety and Health (NIOSH) developed a coal-mass model that is capable of capturing the effect of face cleat and the development of rib fracturing. This paper presents research that is part of a continued effort to calibrate the coal-mass model using monitoring data collected at field sites. This paper...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-264
... for the numerical modeling. The LS-SRM approach has advantages over bonded-particle-based and bonded-block-based SRM modeling approaches in terms of model construction, model calibration, and computation efficiency. Calibration of the mechanical properties of Zhenping marble is performed using the laboratory test...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-739
... of travertines carbonates rocks. Upstream Oil & Gas calibration compression test constitutive elastoplastic model Reservoir Characterization travertine rock lade-kim model representation reservoir geomechanics elastoplastic model optimization travertine carbonate rock geomechanical...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0691
... ABSTRACT: Reliable quantitative data on the mechanical properties of hydrocarbon reservoir rocks can only be obtained from the testing of core samples. Consequently, the geomechanical characterization of reservoir rock formations is mostly based on wireline log indicators, calibrated against...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0817
... frequency attenuation assessment amplitude ultrasonic pulse velocity measurement ultrasonic transducer construction materials wavelength specimen laser vibrometer calibration application vibrometer separation transducer 1. INTRODUCTION Concrete is a popular structural material used in Civil...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-1015
... the accumulation of micro-meso-scale fracture (damage) before the macro-fracture-propagation-stage of fracture coalescence. To this end, reliable sensor calibration is highly warranted to ensure the AE information is readily usable in moment tensor analysis. This paper presents and compares the calibration...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0111
... principal strain components. A non-local measure of strain is used to avoid localization. Constitutive parameters are calibrated against published experimental data for concrete and shale. Simulations of three-point bending tests show that non-local enhancement is necessary and efficient to avoid mesh...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0230
... ABSTRACT: Tensile strengths from the direct tension test and the Brazilian test are compared for the purpose of material property calibration for DEM modeling. We show that size effect in direct tension is statistically insignificant. Sample size is not critically important in calibrating...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-095
... in unconventional hydraulic stimulation software to evaluate the fracture behavior. A 1D anisotropic geomechanical model was performed based on well logs, updated with a suite of mechanical core tests, and finally, calibrated with the pressure interpretation of a mini fall off test on the first fracture stage...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-209
... production performance. Reservoir Characterization Wellbore Design hydraulic fracturing reservoir geomechanics Upstream Oil & Gas category transform function reservoir exposure fracture natural fracture calibration geomechanical driver hydraulic fracture geomechanical model fracture...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-219
... (particularly connective fracturing) in varied hydrogeologic environments to consider the impact of mining on groundwater. Reservoir Characterization hydraulic fracturing flow in porous media aperture reservoir geomechanics Upstream Oil & Gas Fluid Dynamics calibration bedding strata...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-430
... bonded through their cohesive contacts. As a result, the micro-fracturing process can be simulated explicitly by development of crack along grain boundaries. Micro-mechanical parameters of the model is calibrated to Lac du Bonnet granite such that the model reproduces the physics similar to those...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-552
... and sill pillars are thinned and removed. Due to a lack of available quantitative data, a 3D FDM model was developed and the rock mass strength and behaviour was qualitatively calibrated to various geotechnical data sources. With the installation of a mine-wide seismic array, as well as measures of "depth...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7449
... dimensional model is developed to simulate SRV dimensions using effective stresses, injected slurry volume and other reservoir and pumping data during the generation of the hydraulic fracture network. The SRV dimensional model is calibrated using microseismic data from 6 stages of a hydraulic fracturing job...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7121
... FLAC3D model was developed to simulate historical mining and extraction sequence, and the model was qualitatively calibrated based on visual observations of stress induced rock mass damage. Following adequate calibration, forward projections of the pillar extraction were simulated to assess the potential...

Product(s) added to cart

Close Modal