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Keywords: safety factor
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1073
... ABSTRACT: Alberta oilsands operators (operators) in in-situ oil-sands development take caprock-integrity issues seriously. Operators used a safety factor of 80% to determine the Maximum Operation Pressure (MOP) for steam-assisted gravity drainage (SAGD) operations. For example, MOP=80%* σ min...
Proceedings Papers

Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1712
... reservoir geomechanics upstream oil & gas displacement failure zone rmr rock mass strength development drift shotcrete excavation turquoise ridge inflatable bolt reservoir characterization extensometer maximum failure zone mesh safety factor ground support convergence rate 1...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0095
... failure mode hydropower station Reservoir Characterization Engineering strength parameter argillaceous siltstone structural geology cohesion sandstone safety factor stability rock mass weak interlayer mechanical parameter Artificial Intelligence interlayer rock slope weathered depth...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1928
... was stabilized in the slope, the hydrate zone would inhibit the expansion of the plastic zone due to the high strength of hydrate sediment with a slight increase of the slope safety factor. As the hydrate decomposition radius reached 100 m, the plastic zone first appeared in the hydrate decomposition zone...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1419
... program was written using fish language and applied to the Ubiquitous-Joint Model in the finite difference method. Thirdly, a limit equilibrium method to calculate safety factor of the footwall slopes was proposed. In this case, the persistent discontinuities in footwall slopes were simulated by lamellar...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-371
... ABSTRACT: This paper simulated the rainfall infiltration process of the homologies soli slope under different air temperature conditions based on water-air two-phase flow theory and heat transfer equation. Then, the safety factor of a slide slip was calculated by residual thrust method...
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 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0292
... materials within the pond. it was found that increased ponded water level resulted in lower safety factor below the acceptable levels. The location of slime-sand boundary effected the results only when the ponded water level is high, otherwise the results were nearly the same. 1. INTRODUCTION...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0473
... municipality proposal accident Laser subsoil vulnerability municipal scale disaster Amaral consequence geotechnical modeling information safety factor Rio de Janeiro 1. INTRODUÇÃO Natural disasters constitute a theme increasingly present in the daily lives of people, regardless of these reside...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-137
... experience floor heaving. reservoir geomechanics MPa China strength safety factor grout failure Reservoir Characterization stability support factor cable installation grout strength mechanical property value deformation metals & mining floor deformation excavation tunnel bedding...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-224
... instability neural network information open pit slope Artificial Intelligence accuracy Engineering Geology application limitation stability safety factor slope angle ANN model equilibrium method landslide ARMA 16-PAPER224 Data driven approaches to designing large open pit slopes lessons...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-442
... is pyroxenite which is sandwiched by bronzitite and websterite. The average dip of the reef is 11 degrees. Figure 1 shows the cross sectional view of the strata. machine learning metals & mining benchmarking Artificial Intelligence classification mining practice safety factor support system...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-224
... zones in room and pillar coal mine. 4. RESULTS AND DISCUSSION Fig. 3 shows the Safety Factor (SF) of floor bearing capacity against failure for different moisture content of the claystone for both mines based on Vesic-Gadde (VG) method. Fig. 4 shows the same scenario based on Vesic-Speck (VS) approach...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-247
... stability analysis engineering probability reserves evaluation lognormal distribution random parameter rock slope zhou reliability analysis stability analysis safety factor safety index 1 1. Introduction Having considered the recent works which have been done by [1-9] in recent two decades...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-497
... Abstract This paper is based on a Monte Carlo simulation of a problem where a coal mine is divided into two sections (East and West) by a dyke such that the East section experiences no pillar failures while the West does despite having the same safety factor. This may prompt one to mine...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-669
... factor against tensile failure within the caprock. A novel technique is described and implemented to also compute the safety factor against shear failure. The results clearly show that the safety factors against both tensile and shear failure will decrease as the steam chambers develop within...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7074
... roof rock Reservoir Characterization Upstream Oil & Gas stress scenario deflection safety factor strata horizontal stress stability horizontal stress scenario major horizontal stress intersection delamination proceedings international conference compressive failure instability Roof...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7386
... the stability of slope has been recognized as important factors. Infiltration characteristics (infiltration module) and safety factor (slope module) changes of a cut-slope are analyzed under various conditions of precipitation intensity and duration, using the Soilworks program. The results indicate...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-734
... reservoir geomechanics Thickness operation seam iii equation Highwall Mining multiple seam highwall mining India safety factor pillar pillar design stability extraction design mining 1. INTRODUCTION Coal contributes to almost 51% of the energy need of India. The major coal producing co. Coal...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-198
... height gdk-8a incline parting support requirement parting stability colliery stability pillar Parting thickness safety factor contiguous seam minimum safety factor 1. INTRODUCTION In India, room and pillar mining is the most common method of coal extraction. Because of the geological...

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