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Keywords: orientation
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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-ARMS10-2018-077
... geometry and joint surface conditions. However, these approximations consider neither the orientations of the joints and blocks regarding the direction of main loading nor the block shapes. Thus, the characteristics of the anisotropy get lost. This is based on the numerical modelling of a blocky rock mass...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-054
... prediction Reservoir Characterization orientation assessment stress concentration Diederich Energy Storage reservoir geomechanics mechanism asian rock mechanics symposium 29 rockburst tunnel Pre-construction Prediction of Strain-burst Potential in Blind Tunnelling M. S. Diederichsa and I...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-099
... Abstract In situ stress in a rock mass in Singapore is considered to be controlled by the forces related to the subduction of the Indo-Australian plate under the Sunda plate, as NE-SW to NNE-SSW oriented thrust faulting regime has been reported in the area. However, there are some cases of...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-241
.... In this paper, digital image processing is applied to detect edges in the images of two selected tunnel faces, clusters the signals and a structure map is generated which can be used for determining joint orientations, spacings and trace lengths. The applied method resulted in both cases in a very...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-147
... symposium finite element model stress orientation fault system Artificial Intelligence orientation boundary north-south seismic belt Magnitude Numerical Modeling of the Shallow Crustal Stress Field in Chinese Mainland with the Constraint of In-situ Measured Stress S. Yang a*, L. Huang a, Q. Mi a...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-122
...) criterion by appealing to the assumption that the friction angle and cohesion of a plane can be evaluated as a function of relative orientation of the plane referred to the weakness plane. The implication of the employed spatial distribution function is that the M-C parameter value of a plane is the...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-157
... Abstract 3D numerical modelling studies were carried out to study the behaviour of large twin caverns belonging to a hydroelectric project in Himalayan region. Various stages of extraction of the caverns were characterised by instrumentation studies. The cavern is oriented along the major...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-172
... Characterization suhua highway isrm international symposium orientation case slope Upstream Oil & Gas slope surface highway asian rock mechanics symposium 29 discontinuity Artificial Intelligence digital surface model portal coastal highway northern portal continual collapse tunnel...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-225
... stress stress tensor Wellbore Design Mean stress confidence interval Reservoir Characterization orientation Rock mechanics customary method asian rock mechanics symposium 29 rock engineering confidence region Upstream Oil & Gas Harrison situ stress state international symposium...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-177
... rock block are essential for the design of underground excavations in jointed rocks. Traditionally stability analysis involves a tetrahedral block formed by an excavation free face and the mean orientation of three rock joints and this is termed as the deterministic analysis. However, the orientation...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-087
...-cracks orientation on damage distribution around the blasthole have been determined. reservoir simulation damage distribution Dascalu hydraulic fracturing orientation energy release rate Sapporo Upstream Oil & Gas asian rock mechanics symposium arms8 borehole charge microstructual...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-056
... microstructures and their alignment to a prevalent orientation could be one of the plausible causes of the 2σ effect. In order to incorporate the strength anisotropy into a failure condition, the Mohr-Coulomb criterion is extended to the anisotropic version by defining the internal friction angle and the cohesion...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-131
... shearing along the foliation, as well as dilation perpendicular to the foliation. The longitudinal displacement development also depends on the orientation of the tunnel axis in relation to the foliation. It was observed that for perpendicularly striking foliation to the axis, with steeply dipping angle...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-242
... orientation homogeneity stochastic model rock mass Reservoir Characterization Upstream Oil & Gas asian rock mechanics symposium arms8 trace length discontinuity validation 8th Asian Rock Mechanics Symposium ARMS8 14-16 October 2014, Sapporo, Japan Simulation and Validation of Stochastic Three...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-183
... measurement campaigns were carried out in five deep boreholes, with the maximum measurement depth of 700m. The measurement results indicate that the orientation of the maximum horizontal principal stress is NEE to SWW, and the relationship between the three principal stresses are S H S V S h . According...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-154
... conditions including magnitude and orientation of in-situ stress, boundary conditions, and rock mass properties. The fault was modeled as having a dip angle of 40° and apparent thickness of 5 m (equivalent to the height of the excavated rock wall). The shaft sinking procedure was simulated using three...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-256
... characteristics of the rock stress in shallow crustal region in Korea based on the in-situ stress measurement data obtained by hydraulic fracturing stress measurement for the last 14 years. The horizontal stress orientations were determined by the hydraulic fractures and the observations on borehole breakouts and...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-280
... locations are in reverse faulting stress regimes, in which vertical stress (S v ) is the least principal stress. The magnitudes of S Hmax are generally within the stress range limited by frictional coefficients of 0.6 and 1.0 of faults optimally oriented for slip. However, S Hmax magnitudes do not...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-037
... into the center hole. The fracture permeability is determined for various fracture orientations with respect to the vertical loading direction with 15° apart. The flow tests arerepeated 3 times under each vertical load to assess the permanent closure of the fracture under loading. The diametrical loads...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-002
... acquisition system experiment reservoir geomechanics orientation borehole proceedings Rock stress laboratory experiment Magnitude unconsolidated rock formation packer stress measurement azimuth hydraulic fracturing unconsolidated formation test tool MPa hf test drill string Challenges to...

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