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Keywords: safety
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Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0509
... ABSTRACT: In open pit mining operations, the decision to select the ultimate pit slope angle is critical due to its significant impact on safety and economic outcomes like net present value, mine life, operational costs, and safety risks. Recognizing the variability in rock properties...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0511
... ABSTRACT: We compare solutions obtained using 3D Limit-Equilibrium (LE) and the 3D Discrete Element Method (DEM) analyses of rock slope stability and runout to illustrate the importance of kinematics in modeling of rock slides. While 3D LE methods provide a measure of the factor of safety...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0882
...) usually form during the construction of salt caverns. There are significant issues for the safety of caverns with different interlayer composition utilized for underground gas storage (UGS). Therefore, it's essential to investigate the effect of different interlayers content collapse sediments in salt...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0864
... domain, encompassing various manifestations of rock and soil failures, as expounded by Li (2022). Ensuring the safety of individuals and structures necessitates the deployment of dependable and precise methods for assessing rock slope stability. Understanding the prevailing failure mechanisms...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0889
... in interlocking and/or unravelling effects that have important controls on the overall ground behavior. geology geomechanics excavation hydraulic fracturing geological subdiscipline kinematic assessment assessment safety mechanism geologist cavern excavation underground space design stability...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1069
... methodology development safety anisotropy discontinuity directional strength ARMA 24 1069 Methodology Development to incorporate anisotropy in slope stability analysis at Los Bronces mine® M. Córdova. Anglo American Chile, Santiago, Chile J. Vallejos. Universidad de Chile, Santiago, Chile Copyright...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1003
... ABSTRACT: Open pit coal mining near electrical power lines presents distinct geotechnical challenges and regulatory demands, particularly under Section 17.6 of South Africa's Mine Health and Safety Act. This section requires a minimum 100 m buffer between mines and structures such as power...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1124
... mudstone deposit geological subdiscipline strength structural geology shale stability safety ore shale deposit geotechnical implication captured image friction investigation shear strength indian standard method determination canada ARMA 24 1124 Geotechnical Implications of Large Shale...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0526
... of the bank slope, especially the influence of the reservoir impoundment and rainfall. Unbalanced force (UST) and the factor of safety of the potential failure surface are presented to quantitatively evaluate the monolithic stability of the slope. The numerical analysis results show that the slope reaches...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0343
... head of the secondary lining increases by about 700m. The research can provide more scientific basis for designing and optimizing the lining structure and ensuring the safety of tunnel. 1. INTRODUCTION Lining and surrounding rock are the main components of hydraulic tunnel, and the external water...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0534
... and will not help much with maintenance later. Many other issues like sliding, low safety, rock falling, and frequency of accidents during construction may arise (Terzaghi, 1962). The overhanging structure is not anyway near to the conventional tunneling. It is based on hit and trial and no scientific input...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0527
... into account various design factors such as steel properties and geometry. Results demonstrate the location of critical stress values according to the proposed design. The selection of optimum steel geometry is also investigated with regards to the factor of safety. 1. INTRODUCTION Gold mining has been...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-2221
... on stability. Through use of an example, this paper examines the effect of various distribution functions of D through the damaged region, such namely, as constant, linearly varying, and exponentially varying. The failure surfaces and factors of safety for the slope as determined via limit equilibrium are also...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2878
... by lack of data. Recent technological advances enable the use of multiple sources of information, such as Earth Observation (EO), imagery analysis, real time monitoring, which can be combined with numerical analysis and machine learning techniques for monitoring, as well as forecasting the safety of civil...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-987
... ABSTRACT: The stability of a slope can be evaluated according to its factor of safety. There are two approaches used to evaluate the factor of safety: the limit equilibrium method (LEM) and the shear strength reduction technique (SSRT). The LEM defines the factor of safety (FOS) as the ratio...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-788
... equilibrium analysis and finite difference analysis with shear strength reduction method. The effect of long term cohesion degradation on slope stability was explored using perfectly-plastic and strain weakening models. Lower values of rock mass cohesion led to lower factors of safety and smaller zones...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-676
... were used to analyse and improve the current system. The effects of overbreak together with pillar robbing have led to a decrease in safety factors of insitu pillars. Scaling of pillars and a decrease in actual safety factors gave an acute reflection that the current pillar design needs to be improved...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-677
.... A comprehensive analysis of the geotechnical data collected was done using the Q rating, RMR and MRMR systems. The current tendon support system was evaluated using the roofbolt factor of safety approach, fallout thickness evaluation and numerical modelling for adequacy in geotechnically challenging ground...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-214
... ABSTRACT: Most cases of floor failure are ignored by operators because it causes very little damage or disruption to mining operations. However, in rare cases, floor failure is excessive enough to cause ventilation, rib stability and safety concerns. In July 2016, a longwall mine...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0646
... ABSTRACT: The acoustic emission/microseismic (AE/MS) monitoring technique continue to play a major role in providing a safe environment for mine operations. Be it a surface or underground mine operation, the life and safety of miners is constantly under threat due to uncertainties associated...

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