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Keywords: stability analysis
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Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0747
... of slope collapses that occur affecting the health and safety of miners and surrounding community. In rock mechanics, slope stability analysis and design has received significant attention in large scale mining to mitigate the risk of slope collapse but minimal implementation in artisanal and small-scale...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0739
... ABSTRACT Geological discontinuities have a large impact on the rock mass behavior in underground excavations. Under low stress conditions, structurally controlled wedge failure is one of the most critical types of rock instability. The stability analysis, in this case, is essential to consider...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0886
... analysis ARMA 23 886 Wellbore Stability Analysis of Poroelastic Media Based on Reliability Analysis Theory Fuzhi Chen1, Jiajia Gao1, Yutian Feng2, Zhe Wang3, Gengchen Bian1, Hui Ouyang4 1. Petroleum Engineering School, Southwest Petroleum University, Chengdu, Sichuan, China 2. School of Geoscience...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0885
.... The evaluation was conducted in three steps: (1) identification of potentially unstable rock blocks whose trajectory might reach the infrastructure, (2) seismic stability analysis to evaluate the potential of these rock blocks falling, and (3) rockfall trajectory analysis to evaluate the potential of falling...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0911
... capacity of the mud circulation, the excessive failed rock can cause stuck drill pipe or bottom-hole assembly. Sometimes, wellbore collapse can result in sidetracked holes and abandoned wells, which means a great loss in oil and gas industry. Therefore, wellbore stability analysis is vital to safe...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1398
... ABSTRACT: Underground gas storage using salt cavern is becoming popular due to the rising problem of the seasonal gas demand peaking. The salt cavern stability analysis is an indispensable part of the salt cavern design. The aim of the research is to study the stability of the two-well...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1180
.... metals & mining complex reservoir reservoir geomechanics upstream oil & gas stability analysis reservoir characterization equation of state cavern hydraulic fracturing orientation wedge golder associate fracman dfn unwedge dfn approach fracture discontinuity support design...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2164
... to an abstract of not more than 200 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgement of where and by whom the paper was presented. ABSTRACT: Three-dimensional slope stability analysis of open pit mines is carried out using Limit Equilibrium Method (LEM) of analysis...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1979
... are shown in Figure 3. CNI uses the cell mapping method to acquire the orientation, length, and spacing on structure sets to be used in the stability analysis (Nicholas & Sims, 2000). Utilizing the cell mapping method in CloudCompare consists of measuring and cutting out each cell from the greater point...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2041
... of weight-on-bit and torque-on-bit. A linear stability analysis is conducted that leads to explicit expressions for the critical rotational speed(s), which is a function of the number of blades and the relative length of the partial blades. The stability maps indicate that the bits can have a better...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2063
.... reservoir geomechanics stability analysis extraction Reservoir Characterization stope calibration metals & mining paste-fill material underhand mining Upstream Oil & Gas Simulation peak particle velocity mining method dynamic analysis paste-filled stope horizontal stress stability...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0091
... Upstream Oil & Gas failure criteria variation wellbore integrity wellbore stability analysis stability analysis elastic region Engineering criterion failure criterion Wellbore Design mogi-coulomb failure criterion Rock mechanics Zimmerman deformation critical wellbore pressure...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0334
.... In the experiments the critical injection velocity for wormhole formation at minimum acid injection was obtained. Theoretically acidizing was analyzed by formulating the problem as reactive moving boundary Stefan type problem. Wormholing was analyzed through a linear stability analysis from the equilibrium state...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2205
... ABSTRACT: Kinematic rock slope stability typically considers the primary loading force as a combination of the self-weight of the rock blocks themselves, and the water pressure in fractures. When major facilities exist or are planned near rock slopes, kinematic stability analysis also needs...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-788
... ABSTRACT: Stability analysis of weak rock slopes with daylighting bedding planes pose a challenge as a number of competing mechanisms of failure involving failure through the weak rock mass and sliding on the bedding plane are at play. A bedded weak rock slope was analyzed using limit...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-080
... thickness stability analysis fo value mesh density metals & mining weak zone method mechanics weak zone slope stability analysis ubiquitous-joint method 1. INTRODUCTION Determining slope stability is a critical part of the design stage of mining and civil engineering projects...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1419
... footwall slope for the example, three calculation methods were conducted and compared for stability analysis of the footwall slopes. 2. PROJECT OVERVIEW AND CALCULATION PARAMETERS 2.1. Project overview The granite mine is located about 90km south-east of Datong City, Shanxi Province, China. The elevation...

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