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Keywords: orientation
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Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0889
...ARMA 23 0889 Deep learning based 3-dimensional rock discontinuity trace mapping and orientation characterization Kim, S.S., Lee, G.W., Kim, T.H., Diaz, M.B., Kim, K.Y. Korea Maritime and Ocean University, Busan, Republic of Korea Copyright 2023 ARMA, American Rock Mechanics Association This paper...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0893
... to Hartig (2015), being the Red River formation a limestone with very low permeability, it should be analyzed the natural fractures and the fracture stimulation to improve the performance of the SEGS. For that reason, it is crucial to analyze and understand the orientation and location of natural fractures...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0890
... geological subdiscipline magnitude image log stress magnitude shmax pore pressure log analysis horizontal stress orientation zoback diagram cubo caliper log breakout vertical stress stress measurement ARMA 23 890 Geomechanical Analysis for Target Sequences in the Cornell University...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0822
..., and orientation distribution of natural fractures. We then took one-dimensional synthetic cores to ensure that the number and density of fractures per unit length of the core matched with the actual measurements (for each fracture set) until the best statistical description of natural fractures was found...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0846
...-northwest-trending normal faults of the Cascade Range (i.e., High Cascades graben, north of the caldera), and the NW-trending Brother s fault zone, each with a different tectonic history, deformation style, and fault orientation (Figure 7). In addition, the local stress state at the site may be complicated...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0418
... ABSTRACT Sampling windows are essential tools for characterizing fracture distribution from rock exposures, yet few studies have focused on their geometry and how it affects the obtained fracture trace information. In this study, we investigate the influence of window dimension and orientation...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0395
... interlayered gneiss rock mass with distinct planar discontinuities. However, structural discontinuity orientations may only be homogenous across some sections of the rock mass. This research highlights an improved contour density-based methodology drawing upon existing methods of structural domain...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0642
.... A second measure is the exceedance of the failure criterion for the fault orientation that is most critically oriented. The SCU then is calculated for the fault orientation that is most prone to failure. The calculation does not require stresses for all possible orientations; it suffices to determine...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0558
..., such as rock anisotropy and trajectory deviation. An intelligent switch control algorithm based on push RSS is proposed to achieve a smooth trajectory, stable control, and efficient decision-making. Firstly, the control rules of thrust force and thrust orientation are given according to the actual drilling...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0638
... suggest that injection-induced fault slip behavior is controlled by fault orientation, diffusivity and poroelasticity, and injection rate. Compared to the CFS criterion, our model can offer a temporal component to fault friction and provide new insights on slip, slip rate and trajectory in phase space. We...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0641
... ABSTRACT Stress tensor determination is of importance in many aspects of geothermal energy provision, from the understanding of the propagation orientation of newly created fractures to the control of the pre-dominant stimulation mechanism, hydro-fracturing vs. hydro-shearing. Hydraulic...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0741
... scanline ipad-based lidar structural mapping methodology characterization point cloud mapping approach orientation manual mapping approach application structural mapping dip direction ARMA 23 0741 Towards an efficient iPad-based LiDAR structural mapping methodology for underground mines Grenon...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0792
... ABSTRACT The understanding of the orientation of pre-existing discontinuities is crucial for subsurface engineering applications, such as drilling, well completion, and hydraulic fracturing. A variety of methods have been developed to identify fracture orientation, including wellbore imaging...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0928
... binary matrix branch point visualize orientation ARMA 23-0928 3D Image Analysis of Granular Force Chains Li, W. Stony Brook University, Stony Brook, NY, USA Massachusetts Institute of Technology, Cambridge, MA, USA Juanes, R. Massachusetts Institute of Technology, Cambridge, MA, USA Copyright 2023...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0128
... orientations (0/ 45 / 90 degrees) were studied. Both compressive strength and tensile strength were investigated for different orientations. Simple Plane of Weakness and Modified Cam Clay failure criteria were applied to describe shear failure mechanism. Well logging data were used to connect experimental...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0270
... solutions (6 to 25 km deep) are used to constrain the orientation and relative magnitudes of the local and regional stresses. The stress orientations in the sedimentary rock strata and the basement are of two entirely distinct types. In the basement, constant regional NE-SW S Hmax orientation is observed...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0348
... data. The model is then combined with an optimization algorithm to investigate perforation designs leading to nearly uniform proppant distribution between perforations. It is found that it is possible to significantly improve proppant placement by varying perforation orientation along the stage...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0336
... of geotechnical models. The use of aerophotogrammetry techniques with UAVs enables geotechnical and geological engineers to work in a safe and agile manner, maintaining a safe distance from hazardous areas. These techniques can identify the orientation of discontinuities in the rock mass, which is vital...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0415
... of preferentially oriented cracks. Grimsel granite becomes almost isotropic at high pressures. A great part of anisotropy in the Bukov paragneiss remains even under high pressures due to its texture. Both rocks are anisotropic under the equivalent of the overburden pressure acting at the in-situ URL conditions. 1...

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