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Keywords: intersection
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Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0577
... ABSTRACT This study aims at improving our understanding on the stress field dominating the intersection between two tunnels of different diameter and hence provide insights on the stability against shear failures in this vicinity. Theoretical modeling of the deformation of rocks...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0739
... of mining excavations is frequently controlled by rock discontinuities (Hoek et al., 2000). Wedges are formed by the intersection of more than two discontinuities on the walls of an underground opening. The structurally defined rock blocks can fall or slide toward the excavation. The most common wedges...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0822
... formation microimager utah forge discrete fracture network model sharma orientation intersection texas synthetic core Copyright 2023, American Rock Mechanics Association ...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0333
... geologist fluid dynamics united states government upstream oil & gas fracture fracture characterization reservoir simulation geology equation of state hydraulic fracturing roughness intersection angle flow behavior fracture surface pressure gradient flow in porous media...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0599
... double-side inspection intersection similarity-matching fracture completion geological subdiscipline extraction inspection pixel recall rate segmentation algorithm fracture extraction completion method precision rate ARMA 23 599 Fractures extraction from core SEM images based on double...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0585
... ABSTRACT Unplanned roof falls in tunnel intersections are commonly associated with casualties, accidents, economical loss and therefore pose a serious threat for coal mine profitability. Despite the technological advance in ground control, fall of ground (FoG) in tunnel intersection often...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0556
... their stability states (block stability analysis) for instability analysis around the surface and underground excavations (see Figure 1). fracture voxel identification fracture characterization real time system intersection hydraulic fracturing discontinuity geometry reservoir characterization...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0637
... network composed of two intersecting orthogonal fractures. 3D X-ray microscopy was used to image the changes in the fractures and intersection for two orientations of the network, "+" and "X", relative to an applied normal load. For the "+" orientation, the connectivity along the intersection...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0554
... stress. The fluid-solid couple action, fluid flow, and mass transfer during fracturing were considered. By means of the control variable method, we analyzed the intersection characteristic between hydraulic fracture and a cave and whether it could be penetrated. The results show that when hydraulic...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0306
... intersection journal placement rasouli onepetro ARMA 22 306 Simulation of Proppant Placement Efficiency at the Intersection of Induced and Natural Fractures Merzoug, A. and Mouedden, N. Department of Petroleum Engineering, University of North Dakota, Grand Forks, North Dakota, USA Rasouli, V. Department...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2127
.... The simulation results show that the natural fracture density does not directly control the breakout area around the wellbore. Intersection of fractures and borehole, increase in fluid seepage, and large in-situ stress ratio aggravate borehole instability. Increasing wellbore pressure without considering fluid...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0146
... with respect to the principal stresses. This mixed-mode failure is triggered especially upon intersection of these natural fractures with hydraulic fractures and the fracturing fluid infiltration into the natural fractures. Among various influential parameters on the fracture intersection behavior, hydraulic...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0384
... structural geology Reservoir Characterization engineering property data mining Illinois metals & mining displacement shale development entry setup room fault plane rock mass engineering property gate entry longwall face rock mass pillar Chugh face area intersection fault...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1553
... extensometer sandstone procedure panel face study site intersection proceedings international conference pillar response pillar abutment pillar gateroad longwall face Morgantown longwall panel 1. INTRODUCTION The longwall mining method continues to lead underground coal mining production...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1566
... and stress reorientation. metals & mining elevation contour Reservoir Characterization Upstream Oil & Gas US government discontinuous feature slaker fracture plane reservoir geomechanics roof sag intersection Symposium miner LiDAR application pillar geometry cutter roof...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1823
... goals and to understand what benefits additional measurements could provide for improving decision making. hydraulic fracturing experiment 2 frash injection well Upstream Oil & Gas natural fracture complex reservoir fracture intersection geothermal reservoir orientation likelihood...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1792
... intersection planar failure fracture Claystone photogrammetry discontinuity clarksburg claystone Pennsylvania 1 1. INTRODUCTION This paper presents the mid-2017 execution, analysis, and results of our Unmanned Aerial Vehicle (UAV) data acquisition flight and data analysis of the Glassport road- cut...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2157
... crosscut pillar intersection numerical model validation niosh-instrumented pillar US government displacement slaker Murphy stress concentration strength Institute preliminary model loading cross section 1. INRODUCTION In response to recent large-scale pillar collapses, as well...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0018
... fracture (MPa) 0 Inherent shear stress acting on the natural fracture (MPa) C - Cohesion Eq. (9) provides the condition where shear will not occur in the natural fracture. > (9) > + (10) Where: p Pressure at the HF-NF intersection (MPa) ( n p) Effective normal stress acting on the natural...

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