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Keywords: coefficient
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Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-003
... accumulated energy in roof and seam, erg, and A = coefficient depending on joint density and expected cave conditions (Maleki 2015) Damage (severity): A damage rating was developed based on authors observations of physical damage and citations by other researchers (Maleki and White 1997). Damage levels...
Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-090
... mass, the formation of excavation damage zones and the occurrence of thermally-induced rock damage, etc. Thermally-induced damage results from heterogeneous thermal properties in rock - for example, the thermal expansion coefficient of quartz (24.3 × 10 −6 /°C) is three times that of biotite (8.0 × 10...
Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-240
... stress Artificial Intelligence abaqus software asian rock mechanics symposium 29 laser drilling Reservoir Characterization finite element method thermo-mechanical stress coefficient limestone Study of Thermal and Mechanical Stresses Variations on Rock Caused by Laser Drilling in High...
Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-071
... cos sin , (5) , (6) where Fr,n(1) and Fz,n(1) are coefficients of Fourier series expansion, and Fz,0(1) is assumed to be zero. The stress function (1) that satisfies the boundary condition 0 is expressed as follows (Chandrashekhara and Muthanna, 1978); log sin...
Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-173
... Bayesian Inference simulation method analysis method Engineering Simulation stability Artificial Intelligence risk assessment random field isrm international symposium geotechnical engineering limit analysis reinforcement method coefficient asian rock mechanics symposium 29 layered slope...
Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-237
... behaviour. In this study, the wave propagation characteristics and transmission coefficient have been studied on single jointed rock mass under the influence of varying joint stiffness using Universal Distinct Element codes (UDEC). The analysis has been further extended to understand the effect of joint...
Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-131
.... The key is to test the coupling coefficients, such as the ion diffusion coefficient, hydraulic diffusion coefficient and membrane efficiency. In this paper, a new experimental apparatus was designed to simulate downhole conditions and test the pore pressure propagation. Based on the non-equilibrium...
Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-146
... & mining Peak Load coefficient load-deflection curve round concrete panel thyni Numerical Simulation of a Round Determinate Panel Test of Combined Concrete Panel and Welded Wire Mesh Zhiqiang Zhang a* Ping Zhangb and Yunxiang Lia a Xi an University of Technology, Xi an, China b Luleå University...
Proceedings Papers
Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-197
... Artificial Intelligence pore pressure flow in porous media viscosity non-darcy flow test isrm international symposium Upstream Oil & Gas flow rate coefficient Forchheimer equation asian rock mechanics symposium 29 equation sandstone non-darcy coefficient permeability machine...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-276
... level consideration drillstem/well testing analysis result Upstream Oil & Gas asian rock mechanics symposium arms8 Quantitatively kusumi permeability Drillstem Testing groundwater level aging Sapporo kitaoka october 2014 loss coefficient coefficient simulation analysis cleanup...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-294
... Abstract The purpose of this study is to learn the coefficients of restitution, rotational motions and energy ratio for spherical boulder impacting on the two type slopes. Furthermore, this paper explains effect of difference of slope materials on the above parameters. The parameters...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-308
... was formulated for estimation of diffusion-capacity parameters (gas content, coefficients of diffusion and mass exchange) by the pressure measured in degassing borehole. The numerical analysis of cost function using synthetic input data revealed the necessity of the additional information on coal bed gas-kinetic...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-013
... Abstract The values of the effective stress coefficients (α) for intact and fractured rocks were evaluated for three different rocks by conventional method and compared for peak and residual strengths evaluated by Modified Failure Envelope Method (MFEM), which was developed by the authors...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-024
... and the differences among them after a series of shear cycles. Mechanical properties, such as the Joint Roughness Coefficient ( JRC ), the shear stiffness of the joint after shear, the dilation in the joint during shear, the peak and residual stress levels and the amount of gouge material during shear, were obtained...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-052
... coefficient Upstream Oil & Gas cylinder evaluation temmyo span length reservoir simulation formula rectangular cross section flexural strength cross section sedimentary rock construction joint specimen tanikura TPB test FPB test 8th Asian Rock Mechanics Symposium ARMS8 14-16October 2014...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-127
... asian rock mechanics symposium arms8 coefficient time-dependent behavior field measurement horizontal displacement rate element model excavation creep compliance Reservoir Characterization stress function displacement rate tunnel excavation measurement section Upstream Oil & Gas...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-026
... Upstream Oil & Gas coefficient stress concentration stress transfer Drilling fracture equation Mechanism of Deep Hole High Hydraulic Fracturing Prevent Rock Burst in Deep Thick Coal Seam Shankun Zhaoa*, Qingxin Qi b, Zhenhua Ouyangc and Hongyan Lid a*Engineer, China Coal Research Institute...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-017
... ABSTRACT Mechanical behavior prediction of rock joints is very important in the rock mechanics. Many models have been proposed to predict the mechanical behavior of joints at which lack of correct evaluation of effective roughness coefficient has been the most important shortage...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-019
... property porosity sandstone coefficient limestone tensile strength granite Weathering of Rock Specimens Exposed to Repetitive Freezing and Thawing Sunghoon Ryua and Jae-Joon Songb* aGraduate Student, Korea University, Seoul, Korea b*Associate Professor, Seoul National University, Seoul, Korea...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-049
... were synthetically considered for the computation formula by introducing the influencing coefficient of oblique impact and the influencing coefficient of yaw-inducing layer with normal impact. It was shown that the value of influencing coefficient of oblique impact was decreased with both impact angle...
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