1-20 of 62
Keywords: numerical modeling
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-2019-0350
... 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 mine stability. Therefore, the underground pillar design...
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
... interface element equation fracture hydraulic fracturing aperture injection pressure har element fragmentation technique propagation numerical modeling permeability finite element 1. INTRODUCTION The formation and propagation of discontinuities in porous media has been a subject of interest...
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. This...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-264
... 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...
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...
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 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0913
... skin coefficient test data fracture geometry breakdown pressure fracture leak-off coefficient step rate test numerical modeling injection permeability ABSTRACT: This paper presents a fully coupled finite element model to simulate hydraulic fracturing (HF) in rocks. The step rate test...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0886
... requirements for rib support in the gate entries. Rib scoping was performed by NIOSH researchers to detect fractures in the ribs of the gate entries in the Pittsburgh coal seam. Rib fractures and failures were observed for various loading conditions throughout different mining cycles. Numerical modeling was...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0186
... ABSTRACT: During the last decades, researches about tool/rock interaction of Polycrystalline Diamond Compact (PDC) cutters have been focusing on numerical modeling aspect due to its time efficiency compared to the laboratory testing. Among the different numerical methods, researchers commonly...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-123
... experimental study fracture propagation fracture geometry numerical modeling Abstract: Laboratory-scale experiments are an important method for improving understanding of the hydraulic fracturing process under controlled circumstances, even though it is difficult to realistically simulate...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-354
... monitoring results and the predicted numerical modeling results; the best agreement was obtained for k 0 = 0.4. Therefore, k 0 = 0.4 can be considered as the most probable k 0 value for the studied mine site. Overall, the successful simulation of the rock excavation indicated the possibility of...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-355
... Abstract: An underground iron mine in China has been used as a case-study to research the subsidence due to ore extraction and backfilling during open stoping operations. A 3-D discontinuum numerical model was built to scale incorporating geologic complexities including faults and interfaces...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-621
... Abstract: Rock blasting is an economically efficient method to break and move rock. An improved predictive capability of blast outcomes leads to greater efficiency. Numerical modeling of rock blasting is beginning to see wide spread practical use. The physical processes occurring in rock...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-388
..., conventionally, the more aggressive the cutter, the higher the penetration rate achieved. In numerical modeling of single cutter test, keeping constant the depth of cut and the rate of penetration among simulations, the aggressiveness can be used as a sensitivity parameter in analyses regarding the cutting...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-710
... should only be caused by shearing forces, tensile failure is occurred within the sliding blocks. Significantly, the main advantage of DEM over other computational tools is its micromechanical representation of discontinuous media, ARMA 15- 710 Numerical modeling of crack propagation mechanism in jointed...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-846
... realistic irregular intersection geometries in development and setup rooms [4]. Both studies ignored bedding plane interfaces but identified that the current roof bolting patterns may not provide adequate rock mass reinforcement around the intersection corners. Numerical modeling around an intersection can...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-144
... usefulness for estimating face support loading without quantifying the caving characteristics of the main roof strata, ability to concentrate stress, and release it in preferably nonviolent fashion. With the advances in numerical modeling, it is possible to study strata failure and movements in a jointed...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7422
... numerical modeling wellbore integrity wellbore stability isotropic plane geomechanical modeling Bakken formation shale layer 1. INTRODUCTION One of the most important topics of geomechanical modeling in oil industry is unconventional reservoirs. Investigation of anisotropic medium in stiff shales...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7632
... performance in the face area. Field monitoring, observational and numerical modeling studies were performed to develop data that would assist the company to plan for additional supports in the development entries and take appropriate safety measures while advancing toward the fault and crossing it. Numerical...

Product(s) added to cart

Close Modal