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Keywords: footwall
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Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0152
... geological subdiscipline calculation footwall kaiser stability graph method tolerance instability modified stability graph percentile variability endwall ARMA 24 152 Probabilistic Stope Stability Analysis Based on the Modified Stability Graph Séguineau de Préval, C. A2GC, Montreal, Quebec...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0547
... overburden stresses from deeper parts of the basin to the shallow footwall area and loads the footwall sediments. We built these transient evolutionary simulations with Elfen. We model salt as solid viscoplastic and model sediments as poro-elastoplastic material. 1. INTRODUCTION Several numerical studies...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1012
... metals & mining footwall total radiated seismic energy output parameter radiated seismic energy seismicity Drilling Pattern Magnitude production blast stress variation es ep ratio seismic energy seismic response seismic event stp analysis perpendicular ARMA 18-1012 Multivariate...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1219
... present the analysis of the distribution of the physical and the hydraulic properties of sandstones in both the footwall and the hanging wall of a normal fault. The rock in question is an arcosean sandstone deposited in alluvial fans and braided fluvial environments. The results point out to a clear...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-1005
... structures, hazardous conditions and review the quality of the highwall. The conditions of the footwalls were found to be fairly good and it is recommended that the same mining technique carried out when blasting trim benches in the footwall need to be carried out in hangingwall. The implementation of new...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-614
... stress in the footwall of the fault in reverse faulting stress regime. This means that the presence of faults can bring some parts of the reservoir and the cap rock to a more unstable condition. But this does not necessary mean that the fault is unstable itself. Analysis indicates that due to injection...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-541
...]. The mapped fractures include shear fractures emanating from the hangingwall and footwall that are slightly curved, dipping toward the direction of mining and then becoming vertical. reservoir geomechanics stope mechanism plane Reservoir Characterization base model flac-only base model fracture...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-171
... confinement or overstress regime on critical face stability. Two case studies, based on two Canadian operating gold mine shows that using the new Rock Stress Factor A’ to predict the stability of stope hanging-wall and footwall gives better agreement with the CMS survey results, compared with the prediction...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-108
... the mining cost by changing the mining technique to sub-level caving. Many underground works have been considered such as field tunnel, transport tunnels, drilling tunnels, shafts and etc. This paper presents a study to evaluate the stability of the footwall. It is because many infrastructures...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-297
... properties in the geotechnical mine design analyses. In the probabilistic approach, each rock mass parameter is treated as a probability distribution function. A feasibility study of a new mine in Canada was carried out. metals & mining footwall probabilistic model convergence Upstream Oil...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-392
... while monitoring ore dilution. The model showed that by decreasing stope strike length the degree of overbreak from both the footwall and the hanging wall can be reduced with the most significant reductions occurring on the problematic footwall. 1.0 INTRODUCTION Unplanned ore dilution can severely...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 43rd U.S. Rock Mechanics Symposium & 4th U.S. - Canada Rock Mechanics Symposium, June 28–July 1, 2009
Paper Number: ARMA-09-202
.... On the Lapa property, the Fault Zone is almost entirely taken up by the Archean-age Piché Volcanic Group (mafic to ultramafic schists). Reservoir Characterization Artificial Intelligence footwall stress contour sequence pillar extraction sequence Modeling & Simulation metals & mining...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 43rd U.S. Rock Mechanics Symposium & 4th U.S. - Canada Rock Mechanics Symposium, June 28–July 1, 2009
Paper Number: ARMA-09-200
... of waste rock or low grade ore in the hangingwall and footwall. One factor that could have a significant influence on stope overbreak is the undercutting of the stope into the walls. Undercutting stope walls is often necessary, in particular in narrow vein mines. This paper presents a numerical model...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-072
... reservoir geomechanics strength Reservoir Characterization footwall resistance metals & mining pillar strength instrumentation site pillar stress ductile material bushveld platinum deposit South Africa hydrostatic test width-to-height ratio Upstream Oil & Gas pillar...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-386
... occur if the shear zone is locked-up by asperities or by healing. The on-echelon fractures, when crushed, can lead to slips and major seismic events. These events represent risk to major infrastructure such as the haulage ramp and footwall accesses where the shear zones cross the excavations. This study...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the Alaska Rocks 2005, The 40th U.S. Symposium on Rock Mechanics (USRMS), June 25–29, 2005
Paper Number: ARMA-05-799
... ABSTRACT: A safety review for Folsom gravity dam required knowledge of the shear strength for the dam/rock interface beneath several monoliths that rest on a wavy, fault-footwall surface of granodiorite. The fault zone material had been removed during construction but the concrete was placed...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the Vail Rocks 1999, The 37th U.S. Symposium on Rock Mechanics (USRMS), June 7–9, 1999
Paper Number: ARMA-99-1085
... ABSTRACT: This paper presents the development of a method which can be used to evaluate the progressive failure of the hanging wall and footwall rock mass related to underground bulk mining of a steeply dipping ore body. The method presented is unique to rock mechanics applications...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 33rd U.S. Symposium on Rock Mechanics (USRMS), June 3–5, 1992
Paper Number: ARMA-92-0111
... of geologic weakness. The observation of "burst" fractures which emanate at a steep angle in the hangingwall and footwall in a strike-parallel direction from the advancing longwall mining face has been described by Ortlepp (1978). These fractures also appear to be the mechanism for foundation failures...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 31st U.S. Symposium on Rock Mechanics (USRMS), June 18–20, 1990
Paper Number: ARMA-90-0955
... microseismic technology as a potential tool for rock burst prediction as early as 1939 (Obert 1939); however, only a few successful predictions have been achieved to date. Reservoir Characterization footwall macroseismic system vein stope 4900-ft level Upstream Oil & Gas mechanism arrival...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0285
... metals & mining mining drift stope roof Reservoir Characterization displacement information altemative design mechanics parameter original design backfill stope 1908 footwall Mining Research Stability Evaluation ore body kPa finite element model changsha institute...
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