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Keywords: situ stress
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Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-237
...DETERMINING THE IN SITU STRESS WITH THERMALLY INDUCED BOREHOLE BREAKOUT *T. Siren1, J. Suikkanen1, E. Heikkinen2, J. Valli2, M. Hakala3 1Posiva Oy Olkiluoto Eurajoki, Finland (*Corresponding author: [email protected]) 2Pöyry Finland Oy Jaakonkatu 3 Vantaa, Finland 3KMS Hakala Oy Kehonranta 40...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-328
... in fractured shale. The loading path is purely mechanical: excavation and fluid injection are simulated by stress relaxation followed by pressurization. We investigate the effect of pre-existing fracture orientation, in-situ stress and injection pressure on the propagation of anisotropic damage during...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-146
...VARIABILITY OF IN SITU STRESS: THE EFFECT OF CORRELATION BETWEEN STRESS TENSOR COMPONENTS *K. Gao, and J. P. Harrison University of Toronto 35 St. George Street Toronto, Canada M5S 1A4 (*Corresponding author: [email protected]) Innovations in Applied and Theoretical Rock Mechanics Editors...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-026
... amygdaloidal basalt MPa Reservoir Characterization roof support pressure basalt thick plain shotcrete rail transportation Grimstad shotcrete situ stress parallel tunnel principal stress railway tunnel portal area support pressure plain shotcrete rock mass tunnel Harmonising Rock Engineering...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-051
... ABSTRACT This paper presents a displacement based back-analysis method for the determination of the elastic modulus ( E ), cohesive strength ( C ), friction angle ( φ ) and in situ stress of a schistose rock mass. Orthogonal experimental design (OED) method was used to design representative...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-170
... reservoir geomechanics lfj test flat jack test interpretation deformability Reservoir Characterization calculation crack depth flat jack contiguous slot variation Figueiredo tensile crack depth rock mass deformability rock mass situ stress tensile strength numerical model...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-016
... ABSTRACT The field experiment "VAL-STRESS3D", started in 2005 by INERIS, aims to characterize and study both in situ stress and continuous thermomechanical deformations within the "Rochers de Valabres" rock slope, a Pilot Site Laboratory (PSL) prone to rockfalls. Firstly, in situ stress...
Proceedings Papers

Paper presented at the 10th ISRM Congress, September 8–12, 2003
Paper Number: ISRM-10CONGRESS-2003-011
... geological structure reservoir geomechanics plan radius information plan geometry stability metals & mining curvature Rock mechanics rock slope stability possible wedge slope angle geometry technology roadmap situ stress Upstream Oil & Gas slope result slope height discontinuity...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-227
...', ' \ . Manitoba . . 1 I, B.C. ~AIMSON, Geological Engineering Program, UniversitY of WisConsin, Mal;lison, Wis~,USA .. I I~ " r L I ,, .Jo' I I '1 'i ., . " ABSTRACT: The existence of a gently dipping fracture zone at the URL created a clear decoupling of the state of in situ stress. In addition, owing...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-075
...Effect 0' anisotropic in situ stresses onthe stability of underground openings . , ,f' i t ~ t f, ~ l Effet de I'anisotropie des contraintes in situ sur la stabilite des vides souterrains·· .' Auswirkungen anlsotroper ln Situ Spannungen auf die Standtestlqkelt von Untertagehohlraumen...
Proceedings Papers

Paper presented at the 7th ISRM Congress, September 16–20, 1991
Paper Number: ISRM-7CONGRESS-1991-311
... ABSTRACT: We report on two recent contributions in the area of in situ stress determination. We present a case history in which a severely inclined hole was hydraulically fractured and the data successfully interpreted to yield crustal stresses that can be verified by existing information...
Proceedings Papers

Paper presented at the 7th ISRM Congress, September 16–20, 1991
Paper Number: ISRM-7CONGRESS-1991-144
... Reservoir Characterization planning & scheduling information reservoir geomechanics strength australian coal mining industry emploi du modelage numerique pour Artificial Intelligence elasticity sandstone software package database software situ stress cblog workstation software...
Proceedings Papers

Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-021
...-west striking planes. These findings are supported by local geology and seismicity and by evidence of core discing and borehole spalling. The measured in situ stresses were instrumental in the rational design of the future rock caverns with respect to site suitability, cavern orientation and shape...
Proceedings Papers

Paper presented at the 4th ISRM Congress, September 2–8, 1979
Paper Number: ISRM-4CONGRESS-1979-128
... SUMMARY: When a solid epoxy probe with embedded strain gauges is cemented to a pilot hole in rock and overcored, the strains measured in the probe are used to infer the in situ stress state of the rock. A linear elastic analysis demonstrates that the size of the overcoring diameter must...
Proceedings Papers

Paper presented at the 2nd ISRM Congress, September 21–26, 1970
Paper Number: ISRM-2CONGRESS-1970-191
... in a major rock pillar following excavation of the openings. Test results indicated that the three-dimensional in situ stresses varied in a relatively uniform and predictable manner throughout the rock mass, and therefore justified the simple boundary loading conditions chosen for the analyses...

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